1733 Commits

Author SHA1 Message Date
Arnd Bergmann
297e763402 pstore: Use ktime_get_real_fast_ns() instead of __getnstimeofday()
__getnstimeofday() is a rather odd interface, with a number of quirks:

- The caller may come from NMI context, but the implementation is not NMI safe,
  one way to get there from NMI is

      NMI handler:
        something bad
          panic()
            kmsg_dump()
              pstore_dump()
                 pstore_record_init()
                   __getnstimeofday()

- The calling conventions are different from any other timekeeping functions,
  to deal with returning an error code during suspended timekeeping.

Address the above issues by using a completely different method to get the
time: ktime_get_real_fast_ns() is NMI safe and has a reasonable behavior
when timekeeping is suspended: it returns the time at which it got
suspended. As Thomas Gleixner explained, this is safe, as
ktime_get_real_fast_ns() does not call into the clocksource driver that
might be suspended.

The result can easily be transformed into a timespec structure. Since
ktime_get_real_fast_ns() was not exported to modules, add the export.

The pstore behavior for the suspended case changes slightly, as it now
stores the timestamp at which timekeeping was suspended instead of storing
a zero timestamp.

This change is not addressing y2038-safety, that's subject to a more
complex follow up patch.

Change-Id: Id259b99ce7a7cba52abad39f61420ec977e26e37
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Anton Vorontsov <anton@enomsg.org>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Colin Cross <ccross@android.com>
Link: https://lkml.kernel.org/r/20171110152530.1926955-1-arnd@arndb.de
2025-10-02 22:14:58 +08:00
Arnd Bergmann
d900f78f79 timekeeping: Use timespec64 in timekeeping_inject_offset
As part of changing all the timekeeping code to use 64-bit
time_t consistently, this removes the uses of timeval
and timespec as much as possible from do_adjtimex() and
timekeeping_inject_offset(). The timeval_inject_offset_valid()
and timespec_inject_offset_valid() just complicate this,
so I'm folding them into the respective callers.

This leaves the actual 'struct timex' definition, which
is part of the user-space ABI and should be dealt with
separately when we have agreed on the ABI change.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Miroslav Lichvar <mlichvar@redhat.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Stephen Boyd <stephen.boyd@linaro.org>
Change-Id: I7e05c6e81c919d6174a759af6d8a734265df6d01
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
2025-10-02 22:14:58 +08:00
Thomas Gleixner
1a13aa1be7 timekeeping: Provide NMI safe access to clock realtime
The configurable printk timestamping wants access to clock realtime. Right
now there is no ktime_get_real_fast_ns() accessor because reading the
monotonic base and the realtime offset cannot be done atomically. Contrary
to boot time this offset can change during runtime and cause half updated
readouts.

struct tk_read_base was fully packed when the fast timekeeper access was
implemented. commit ceea5e3771 ("time: Fix clock->read(clock) race around
clocksource changes") removed the 'read' function pointer from the
structure, but of course left the comment stale.

So now the structure can fit a new 64bit member w/o violating the cache
line constraints.

Add real_base to tk_read_base and update it in the fast timekeeper update
sequence.

Implement an accessor which follows the same scheme as the accessor to
clock monotonic, but uses the new real_base to access clock real time.

The runtime overhead for updating real_base is minimal as it just adds two
cache hot values and stores them into an already dirtied cache line along
with the other fast timekeeper updates.

Change-Id: I67297bb116aba7400645dd593f83dba149ae65d3
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Peter Zijlstra <peterz@infradead,org>
Link: https://lkml.kernel.org/r/1505757060-2004-3-git-send-email-prarit@redhat.com
2025-10-02 22:14:58 +08:00
Prarit Bhargava
a220c2eb38 timekeeping: Make fast accessors return 0 before timekeeping is initialized
printk timestamps will be extended to include mono and boot time by using
the fast timekeeping accessors ktime_get_mono|boot_fast_ns().  The
functions can return garbage before timekeeping is initialized resulting in
garbage timestamps.

Initialize the fast timekeepers with dummy clocks which guarantee a 0
readout up to timekeeping_init().

Suggested-by: Peter Zijlstra <peterz@infradead.org>
Change-Id: Ia92cfef7f56ea216c40bf18b32c1bf334a1aea72
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: John Stultz <john.stultz@linaro.org>
Link: http://lkml.kernel.org/r/1503922914-10660-2-git-send-email-prarit@redhat.com
2025-10-02 22:14:58 +08:00
Arnd Bergmann
a698ea2efc UPSTREAM: timekeeping: Standardize on ktime_get_*() naming
The current_kernel_time64, get_monotonic_coarse64, getrawmonotonic64,
get_monotonic_boottime64 and timekeeping_clocktai64 interfaces have
rather inconsistent naming, and they differ in the calling conventions
by passing the output either by reference or as a return value.

Rename them to ktime_get_coarse_real_ts64, ktime_get_coarse_ts64,
ktime_get_raw_ts64, ktime_get_boottime_ts64 and ktime_get_clocktai_ts64
respectively, and provide the interfaces with macros or inline
functions as needed.

Change-Id: Ifa617b3cb1bff3821c1387efaeca899418e8bc9a
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: y2038@lists.linaro.org
Cc: John Stultz <john.stultz@linaro.org>
Link: https://lkml.kernel.org/r/20180427134016.2525989-4-arnd@arndb.de
2025-10-02 22:14:57 +08:00
Arnd Bergmann
6afec5e1e1 UPSTREAM: timekeeping: Clean up ktime_get_real_ts64
In a move to make ktime_get_*() the preferred driver interface into the
timekeeping code, sanitizes ktime_get_real_ts64() to be a proper exported
symbol rather than an alias for getnstimeofday64().

The internal __getnstimeofday64() is no longer used, so remove that
and merge it into ktime_get_real_ts64().

Change-Id: I79e7ad3d71807eafb7eb0827e3945ccbfcd1cfdc
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: y2038@lists.linaro.org
Cc: John Stultz <john.stultz@linaro.org>
Link: https://lkml.kernel.org/r/20180427134016.2525989-3-arnd@arndb.de
2025-10-02 22:14:57 +08:00
Baolin Wang
cefbb1b7ad UPSTREAM: timekeeping: Remove __current_kernel_time()
The __current_kernel_time() function based on 'struct timespec' is no
longer recommended for new code, and the only user of this function has
been replaced by commit 6909e29fdefb ("kdb: use __ktime_get_real_seconds
instead of __current_kernel_time").

Remove the obsolete interface.

Change-Id: If68b9be1b08d508237ce15003cacb2d730f915e4
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: arnd@arndb.de
Cc: sboyd@kernel.org
Cc: broonie@kernel.org
Cc: john.stultz@linaro.org
Link: https://lkml.kernel.org/r/1a9dbea7ee2cda7efe9ed330874075cf17fdbff6.1523596316.git.baolin.wang@linaro.org
2025-10-02 22:14:57 +08:00
Arnd Bergmann
6c67fb5d31 UPSTREAM: timekeeping: Remove timespec64 hack
At this point, we have converted most of the kernel to use timespec64
consistently in place of timespec, so it seems it's time to make
timespec64 the native structure and define timespec in terms of that
one on 64-bit architectures.

Starting with gcc-5, the compiler can completely optimize away the
timespec_to_timespec64 and timespec64_to_timespec functions on 64-bit
architectures. With older compilers, we introduce a couple of extra
copies of local variables, but those are easily avoided by using
the timespec64 based interfaces consistently, as we do in most of the
important code paths already.

The main upside of removing the hack is that printing the tv_sec
field of a timespec64 structure can now use the %lld format
string on all architectures without a cast to time64_t. Without
this patch, the field is a 'long' type and would have to be printed
using %ld on 64-bit architectures.

Change-Id: I5f90acafd007c8f2a2d0a0a597c5b10b7803a0d5
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: y2038@lists.linaro.org
Cc: John Stultz <john.stultz@linaro.org>
Link: https://lkml.kernel.org/r/20180427134016.2525989-2-arnd@arndb.de
2025-10-02 22:14:57 +08:00
Arnd Bergmann
7a6335b790 UPSTREAM: y2038: Introduce struct __kernel_old_timeval
Dealing with 'struct timeval' users in the y2038 series is a bit tricky:

We have two definitions of timeval that are visible to user space,
one comes from glibc (or some other C library), the other comes from
linux/time.h. The kernel copy is what we want to be used for a number of
structures defined by the kernel itself, e.g. elf_prstatus (used it core
dumps), sysinfo and rusage (used in system calls).  These generally tend
to be used for passing time intervals rather than absolute (epoch-based)
times, so they do not suffer from the y2038 overflow. Some of them
could be changed to use 64-bit timestamps by creating new system calls,
others like the core files cannot easily be changed.

An application using these interfaces likely also uses gettimeofday()
or other interfaces that use absolute times, and pass 'struct timeval'
pointers directly into kernel interfaces, so glibc must redefine their
timeval based on a 64-bit time_t when they introduce their y2038-safe
interfaces.

The only reasonable way forward I see is to remove the 'timeval'
definion from the kernel's uapi headers, and change the interfaces that
we do not want to (or cannot) duplicate for 64-bit times to use a new
__kernel_old_timeval definition instead. This type should be avoided
for all new interfaces (those can use 64-bit nanoseconds, or the 64-bit
version of timespec instead), and should be used with great care when
converting existing interfaces from timeval, to be sure they don't suffer
from the y2038 overflow, and only with consensus for the particular user
that using __kernel_old_timeval is better than moving to a 64-bit based
interface. The structure name is intentionally chosen to not conflict
with user space types, and to be ugly enough to discourage its use.

Note that ioctl based interfaces that pass a bare 'timeval' pointer
cannot change to '__kernel_old_timeval' because the user space source
code refers to 'timeval' instead, and we don't want to modify the user
space sources if possible. However, any application that relies on a
structure to contain an embedded 'timeval' (e.g. by passing a pointer
to the member into a function call that expects a timeval pointer) is
broken when that structure gets converted to __kernel_old_timeval. I
don't see any way around that, and we have to rely on the compiler to
produce a warning or compile failure that will alert users when they
recompile their sources against a new libc.

Change-Id: I89fee6b13307424100b8a630f75414c77129ee5c
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Link: https://lkml.kernel.org/r/20180315161739.576085-1-arnd@arndb.de
2025-10-02 22:14:57 +08:00
Arnd Bergmann
8729a147e2 UPSTREAM: time: Move time_t conversion helpers to time32.h
On 64-bit architectures, the timespec64 based helpers in linux/time.h
are defined as macros pointing to their timespec based counterparts.
This made sense when they were first introduced, but as we are migrating
away from timespec in general, it's much less intuitive now.

This changes the macros to work in the exact opposite way: we always
provide the timespec64 based helpers and define the old interfaces as
macros for them. Now we can move those macros into linux/time32.h, which
already contains the respective helpers for 32-bit architectures.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Miroslav Lichvar <mlichvar@redhat.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Stephen Boyd <stephen.boyd@linaro.org>
Change-Id: I0305f4df7eebc94e364c702c39dc5ca79c63f67e
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
2025-10-02 22:14:57 +08:00
Arnd Bergmann
36ffe3f67b UPSTREAM: time: Remove unused functions
The (slow but) ongoing work on conversion from timespec to timespec64
has led some timespec based helper functions to become unused.

No new code should use them, so we can remove the functions entirely.
I'm planning to obsolete additional interfaces next and remove
more of these.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Miroslav Lichvar <mlichvar@redhat.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Stephen Boyd <stephen.boyd@linaro.org>
Change-Id: Ib2c46b76e8186b0f0d06252ccc328884bfb359e9
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
2025-10-02 22:14:56 +08:00
Arnd Bergmann
ab623d4d78 BACKPORT: timekeeping: Consolidate timekeeping_inject_offset code
The code to check the adjtimex() or clock_adjtime() arguments is spread
out across multiple files for presumably only historic reasons. As a
preparatation for a rework to get rid of the use of 'struct timeval'
and 'struct timespec' in there, this moves all the portions into
kernel/time/timekeeping.c and marks them as 'static'.

The warp_clock() function here is not as closely related as the others,
but I feel it still makes sense to move it here in order to consolidate
all callers of timekeeping_inject_offset().

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Miroslav Lichvar <mlichvar@redhat.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Stephen Boyd <stephen.boyd@linaro.org>
Change-Id: Ib268add953c41504b8a88067c18b4086fa37beb8
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[jstultz: Whitespace fixup]
Signed-off-by: John Stultz <john.stultz@linaro.org>
2025-10-02 22:14:56 +08:00
Arnd Bergmann
6da1fb2e5b UPSTREAM: timekeeping: Add ktime_get_coarse_with_offset
I have run into a couple of drivers using current_kernel_time()
suffering from the y2038 problem, and they could be converted
to using ktime_t, but don't have interfaces that skip the nanosecond
calculation at the moment.

This introduces ktime_get_coarse_with_offset() as a simpler
variant of ktime_get_with_offset(), and adds wrappers for the
three time domains we support with the existing function.

Change-Id: Ieedd1596482ce9c740a820d92f957f19a486e15f
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: y2038@lists.linaro.org
Cc: John Stultz <john.stultz@linaro.org>
Link: https://lkml.kernel.org/r/20180427134016.2525989-5-arnd@arndb.de
2025-10-02 22:14:56 +08:00
Samuel Pascua
622705f7c9 Merge tag 'v4.14.356-openela-rc1' of https://github.com/openela/kernel-lts
This is the 4.14.356 OpenELA-Extended LTS stable release candidate 1

 Conflicts:
	arch/arm/include/asm/uaccess.h
	drivers/android/binder.c
	drivers/android/binder_alloc.c
	drivers/block/loop.c
	drivers/infiniband/ulp/srpt/ib_srpt.c
	drivers/mmc/core/mmc_test.c
	drivers/net/usb/usbnet.c
	fs/aio.c
	fs/f2fs/inode.c
	fs/f2fs/namei.c
	fs/f2fs/segment.c
	fs/f2fs/super.c
	fs/select.c
	include/linux/fs.h
	include/net/netns/ipv4.h
	kernel/power/swap.c
	mm/page_alloc.c
	net/core/filter.c
	net/ipv4/af_inet.c
	net/ipv4/sysctl_net_ipv4.c
	net/ipv4/tcp_ipv4.c
	net/ipv6/af_inet6.c
	net/qrtr/qrtr.c
	sound/usb/stream.c

Change-Id: I016dabcf8f4fd90dae7083272b3465d184c07de8
2025-09-29 21:58:19 +08:00
Jinjie Ruan
d792e0c744 posix-clock: posix-clock: Fix unbalanced locking in pc_clock_settime()
[ Upstream commit 6e62807c7fbb3c758d233018caf94dfea9c65dbd ]

If get_clock_desc() succeeds, it calls fget() for the clockid's fd,
and get the clk->rwsem read lock, so the error path should release
the lock to make the lock balance and fput the clockid's fd to make
the refcount balance and release the fd related resource.

However the below commit left the error path locked behind resulting in
unbalanced locking. Check timespec64_valid_strict() before
get_clock_desc() to fix it, because the "ts" is not changed
after that.

Fixes: d8794ac20a29 ("posix-clock: Fix missing timespec64 check in pc_clock_settime()")
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Acked-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
[pabeni@redhat.com: fixed commit message typo]
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
(cherry picked from commit d005400262ddaf1ca1666bbcd1acf42fe81d57ce)
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
2025-02-07 11:46:09 +00:00
Jinjie Ruan
d669e5f7d2 posix-clock: Fix missing timespec64 check in pc_clock_settime()
commit d8794ac20a299b647ba9958f6d657051fc51a540 upstream.

As Andrew pointed out, it will make sense that the PTP core
checked timespec64 struct's tv_sec and tv_nsec range before calling
ptp->info->settime64().

As the man manual of clock_settime() said, if tp.tv_sec is negative or
tp.tv_nsec is outside the range [0..999,999,999], it should return EINVAL,
which include dynamic clocks which handles PTP clock, and the condition is
consistent with timespec64_valid(). As Thomas suggested, timespec64_valid()
only check the timespec is valid, but not ensure that the time is
in a valid range, so check it ahead using timespec64_valid_strict()
in pc_clock_settime() and return -EINVAL if not valid.

There are some drivers that use tp->tv_sec and tp->tv_nsec directly to
write registers without validity checks and assume that the higher layer
has checked it, which is dangerous and will benefit from this, such as
hclge_ptp_settime(), igb_ptp_settime_i210(), _rcar_gen4_ptp_settime(),
and some drivers can remove the checks of itself.

Cc: stable@vger.kernel.org
Fixes: 0606f422b4 ("posix clocks: Introduce dynamic clocks")
Acked-by: Richard Cochran <richardcochran@gmail.com>
Suggested-by: Andrew Lunn <andrew@lunn.ch>
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Link: https://patch.msgid.link/20241009072302.1754567-2-ruanjinjie@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 29f085345cde24566efb751f39e5d367c381c584)
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
2025-02-07 11:46:07 +00:00
Phil Chang
b02d82c6ed hrtimer: Prevent queuing of hrtimer without a function callback
[ Upstream commit 5a830bbce3af16833fe0092dec47b6dd30279825 ]

The hrtimer function callback must not be NULL. It has to be specified by
the call side but it is not validated by the hrtimer code. When a hrtimer
is queued without a function callback, the kernel crashes with a null
pointer dereference when trying to execute the callback in __run_hrtimer().

Introduce a validation before queuing the hrtimer in
hrtimer_start_range_ns().

[anna-maria: Rephrase commit message]

Signed-off-by: Phil Chang <phil.chang@mediatek.com>
Signed-off-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
(cherry picked from commit ccef3adcb84816a30b8e535c8c4fcb167904e7b1)
[Vegard: fix conflicts in context due to missing commit
 138a6b7ae4dedde5513678f57b275eee19c41b6a ("hrtimer: Factor out
 __hrtimer_start_range_ns()").]
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
2024-10-24 10:07:39 +00:00
Haky86
f01fa25d84 Merge branch 'deprecated/android-4.14-stable' of https://android.googlesource.com/kernel/common into lineage-21.0
Change-Id: I8750f4152cf3c402ef61f9266766128541dfa05c
2024-10-11 16:00:11 +02:00
Justin Stitt
53390d85b1 ntp: Safeguard against time_constant overflow
commit 06c03c8edce333b9ad9c6b207d93d3a5ae7c10c0 upstream.

Using syzkaller with the recently reintroduced signed integer overflow
sanitizer produces this UBSAN report:

UBSAN: signed-integer-overflow in ../kernel/time/ntp.c:738:18
9223372036854775806 + 4 cannot be represented in type 'long'
Call Trace:
 handle_overflow+0x171/0x1b0
 __do_adjtimex+0x1236/0x1440
 do_adjtimex+0x2be/0x740

The user supplied time_constant value is incremented by four and then
clamped to the operating range.

Before commit eea83d896e ("ntp: NTP4 user space bits update") the user
supplied value was sanity checked to be in the operating range. That change
removed the sanity check and relied on clamping after incrementing which
does not work correctly when the user supplied value is in the overflow
zone of the '+ 4' operation.

The operation requires CAP_SYS_TIME and the side effect of the overflow is
NTP getting out of sync.

Similar to the fixups for time_maxerror and time_esterror, clamp the user
space supplied value to the operating range.

[ tglx: Switch to clamping ]

Fixes: eea83d896e ("ntp: NTP4 user space bits update")
Signed-off-by: Justin Stitt <justinstitt@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Miroslav Lichvar <mlichvar@redhat.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/all/20240517-b4-sio-ntp-c-v2-1-f3a80096f36f@google.com
Closes: https://github.com/KSPP/linux/issues/352
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit a13f8b269b6f4c9371ab149ecb65d2edb52e9669)
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
2024-10-10 10:27:30 +00:00
Justin Stitt
07f7f40df9 ntp: Clamp maxerror and esterror to operating range
[ Upstream commit 87d571d6fb77ec342a985afa8744bb9bb75b3622 ]

Using syzkaller alongside the newly reintroduced signed integer overflow
sanitizer spits out this report:

UBSAN: signed-integer-overflow in ../kernel/time/ntp.c:461:16
9223372036854775807 + 500 cannot be represented in type 'long'
Call Trace:
 handle_overflow+0x171/0x1b0
 second_overflow+0x2d6/0x500
 accumulate_nsecs_to_secs+0x60/0x160
 timekeeping_advance+0x1fe/0x890
 update_wall_time+0x10/0x30

time_maxerror is unconditionally incremented and the result is checked
against NTP_PHASE_LIMIT, but the increment itself can overflow, resulting
in wrap-around to negative space.

Before commit eea83d896e ("ntp: NTP4 user space bits update") the user
supplied value was sanity checked to be in the operating range. That change
removed the sanity check and relied on clamping in handle_overflow() which
does not work correctly when the user supplied value is in the overflow
zone of the '+ 500' operation.

The operation requires CAP_SYS_TIME and the side effect of the overflow is
NTP getting out of sync.

Miroslav confirmed that the input value should be clamped to the operating
range and the same applies to time_esterror. The latter is not used by the
kernel, but the value still should be in the operating range as it was
before the sanity check got removed.

Clamp them to the operating range.

[ tglx: Changed it to clamping and included time_esterror ]

Fixes: eea83d896e ("ntp: NTP4 user space bits update")
Signed-off-by: Justin Stitt <justinstitt@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Miroslav Lichvar <mlichvar@redhat.com>
Link: https://lore.kernel.org/all/20240517-b4-sio-ntp-usec-v2-1-d539180f2b79@google.com
Closes: https://github.com/KSPP/linux/issues/354
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ cast things to __kernel_long_t to fix compiler warnings - gregkh ]
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 9dfe2eef1ecfbb1f29e678700247de6010784eb9)
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
2024-10-10 10:27:29 +00:00
Thomas Gleixner
6fad54cc7a tick/broadcast: Move per CPU pointer access into the atomic section
commit 6881e75237a84093d0986f56223db3724619f26e upstream.

The recent fix for making the take over of the broadcast timer more
reliable retrieves a per CPU pointer in preemptible context.

This went unnoticed as compilers hoist the access into the non-preemptible
region where the pointer is actually used. But of course it's valid that
the compiler keeps it at the place where the code puts it which rightfully
triggers:

  BUG: using smp_processor_id() in preemptible [00000000] code:
       caller is hotplug_cpu__broadcast_tick_pull+0x1c/0xc0

Move it to the actual usage site which is in a non-preemptible region.

Fixes: f7d43dd206e7 ("tick/broadcast: Make takeover of broadcast hrtimer reliable")
Reported-by: David Wang <00107082@163.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Yu Liao <liaoyu15@huawei.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/all/87ttg56ers.ffs@tglx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit f54abf332a2bc0413cfa8bd6a8511f7aa99faea0)
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
2024-10-10 10:27:29 +00:00
Yu Liao
3065612975 tick/broadcast: Make takeover of broadcast hrtimer reliable
commit f7d43dd206e7e18c182f200e67a8db8c209907fa upstream.

Running the LTP hotplug stress test on a aarch64 machine results in
rcu_sched stall warnings when the broadcast hrtimer was owned by the
un-plugged CPU. The issue is the following:

CPU1 (owns the broadcast hrtimer)	CPU2

				tick_broadcast_enter()
				  // shutdown local timer device
				  broadcast_shutdown_local()
				...
				tick_broadcast_exit()
				  clockevents_switch_state(dev, CLOCK_EVT_STATE_ONESHOT)
				  // timer device is not programmed
				  cpumask_set_cpu(cpu, tick_broadcast_force_mask)

				initiates offlining of CPU1
take_cpu_down()
/*
 * CPU1 shuts down and does not
 * send broadcast IPI anymore
 */
				takedown_cpu()
				  hotplug_cpu__broadcast_tick_pull()
				    // move broadcast hrtimer to this CPU
				    clockevents_program_event()
				      bc_set_next()
					hrtimer_start()
					/*
					 * timer device is not programmed
					 * because only the first expiring
					 * timer will trigger clockevent
					 * device reprogramming
					 */

What happens is that CPU2 exits broadcast mode with force bit set, then the
local timer device is not reprogrammed and CPU2 expects to receive the
expired event by the broadcast IPI. But this does not happen because CPU1
is offlined by CPU2. CPU switches the clockevent device to ONESHOT state,
but does not reprogram the device.

The subsequent reprogramming of the hrtimer broadcast device does not
program the clockevent device of CPU2 either because the pending expiry
time is already in the past and the CPU expects the event to be delivered.
As a consequence all CPUs which wait for a broadcast event to be delivered
are stuck forever.

Fix this issue by reprogramming the local timer device if the broadcast
force bit of the CPU is set so that the broadcast hrtimer is delivered.

[ tglx: Massage comment and change log. Add Fixes tag ]

Fixes: 989dcb645c ("tick: Handle broadcast wakeup of multiple cpus")
Signed-off-by: Yu Liao <liaoyu15@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240711124843.64167-1-liaoyu15@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit dfe19aa91378972f10530635ad83b2d77f481044)
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
2024-10-10 10:27:23 +00:00
Haky86
1a16e98230 Import from SM-A715F_EUR_13_Opensource
* Taken from A715FXXUADWE1 source.

Change-Id: Ife88f79141085bddd4537434c451245b52ac71ad
2024-05-13 18:30:34 +02:00
Peter Hilber
fabbb78782 timekeeping: Fix cross-timestamp interpolation for non-x86
[ Upstream commit 14274d0bd31b4debf28284604589f596ad2e99f2 ]

So far, get_device_system_crosststamp() unconditionally passes
system_counterval.cycles to timekeeping_cycles_to_ns(). But when
interpolating system time (do_interp == true), system_counterval.cycles is
before tkr_mono.cycle_last, contrary to the timekeeping_cycles_to_ns()
expectations.

On x86, CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE will mitigate on
interpolating, setting delta to 0. With delta == 0, xtstamp->sys_monoraw
and xtstamp->sys_realtime are then set to the last update time, as
implicitly expected by adjust_historical_crosststamp(). On other
architectures, the resulting nonsense xtstamp->sys_monoraw and
xtstamp->sys_realtime corrupt the xtstamp (ts) adjustment in
adjust_historical_crosststamp().

Fix this by deriving xtstamp->sys_monoraw and xtstamp->sys_realtime from
the last update time when interpolating, by using the local variable
"cycles". The local variable already has the right value when
interpolating, unlike system_counterval.cycles.

Fixes: 2c756feb18 ("time: Add history to cross timestamp interface supporting slower devices")
Signed-off-by: Peter Hilber <peter.hilber@opensynergy.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: John Stultz <jstultz@google.com>
Link: https://lore.kernel.org/r/20231218073849.35294-4-peter.hilber@opensynergy.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
(cherry picked from commit 20880812b2f8fad4cf269f83bd5266eed31f0208)
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
2024-04-16 10:30:27 +00:00
Peter Hilber
ed6452adf4 timekeeping: Fix cross-timestamp interpolation corner case decision
[ Upstream commit 87a41130881995f82f7adbafbfeddaebfb35f0ef ]

The cycle_between() helper checks if parameter test is in the open interval
(before, after). Colloquially speaking, this also applies to the counter
wrap-around special case before > after. get_device_system_crosststamp()
currently uses cycle_between() at the first call site to decide whether to
interpolate for older counter readings.

get_device_system_crosststamp() has the following problem with
cycle_between() testing against an open interval: Assume that, by chance,
cycles == tk->tkr_mono.cycle_last (in the following, "cycle_last" for
brevity). Then, cycle_between() at the first call site, with effective
argument values cycle_between(cycle_last, cycles, now), returns false,
enabling interpolation. During interpolation,
get_device_system_crosststamp() will then call cycle_between() at the
second call site (if a history_begin was supplied). The effective argument
values are cycle_between(history_begin->cycles, cycles, cycles), since
system_counterval.cycles == interval_start == cycles, per the assumption.
Due to the test against the open interval, cycle_between() returns false
again. This causes get_device_system_crosststamp() to return -EINVAL.

This failure should be avoided, since get_device_system_crosststamp() works
both when cycles follows cycle_last (no interpolation), and when cycles
precedes cycle_last (interpolation). For the case cycles == cycle_last,
interpolation is actually unneeded.

Fix this by changing cycle_between() into timestamp_in_interval(), which
now checks against the closed interval, rather than the open interval.

This changes the get_device_system_crosststamp() behavior for three corner
cases:

1. Bypass interpolation in the case cycles == tk->tkr_mono.cycle_last,
   fixing the problem described above.

2. At the first timestamp_in_interval() call site, cycles == now no longer
   causes failure.

3. At the second timestamp_in_interval() call site, history_begin->cycles
   == system_counterval.cycles no longer causes failure.
   adjust_historical_crosststamp() also works for this corner case,
   where partial_history_cycles == total_history_cycles.

These behavioral changes should not cause any problems.

Fixes: 2c756feb18 ("time: Add history to cross timestamp interface supporting slower devices")
Signed-off-by: Peter Hilber <peter.hilber@opensynergy.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20231218073849.35294-3-peter.hilber@opensynergy.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
(cherry picked from commit 86c7cc07eef558e9986a17ac5b6d5f44c8b493bd)
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
2024-04-16 10:30:27 +00:00
Peter Hilber
44b1502cbc timekeeping: Fix cross-timestamp interpolation on counter wrap
[ Upstream commit 84dccadd3e2a3f1a373826ad71e5ced5e76b0c00 ]

cycle_between() decides whether get_device_system_crosststamp() will
interpolate for older counter readings.

cycle_between() yields wrong results for a counter wrap-around where after
< before < test, and for the case after < test < before.

Fix the comparison logic.

Fixes: 2c756feb18 ("time: Add history to cross timestamp interface supporting slower devices")
Signed-off-by: Peter Hilber <peter.hilber@opensynergy.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: John Stultz <jstultz@google.com>
Link: https://lore.kernel.org/r/20231218073849.35294-2-peter.hilber@opensynergy.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
(cherry picked from commit 3c22ef22761ab15b1c32ea5997859c0719fdc14d)
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
2024-04-16 10:30:27 +00:00
Tim Chen
fd36c0072c tick/sched: Preserve number of idle sleeps across CPU hotplug events
commit 9a574ea9069be30b835a3da772c039993c43369b upstream.

Commit 71fee48f ("tick-sched: Fix idle and iowait sleeptime accounting vs
CPU hotplug") preserved total idle sleep time and iowait sleeptime across
CPU hotplug events.

Similar reasoning applies to the number of idle calls and idle sleeps to
get the proper average of sleep time per idle invocation.

Preserve those fields too.

Fixes: 71fee48f ("tick-sched: Fix idle and iowait sleeptime accounting vs CPU hotplug")
Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240122233534.3094238-1-tim.c.chen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 7c0fdf4485c7bb02a1c7d7a4a68c3686d6ac5d53)
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
2024-03-08 08:21:29 +00:00
Heiko Carstens
e3ff741c08 tick-sched: Fix idle and iowait sleeptime accounting vs CPU hotplug
commit 71fee48fb772ac4f6cfa63dbebc5629de8b4cc09 upstream.

When offlining and onlining CPUs the overall reported idle and iowait
times as reported by /proc/stat jump backward and forward:

cpu  132 0 176 225249 47 6 6 21 0 0
cpu0 80 0 115 112575 33 3 4 18 0 0
cpu1 52 0 60 112673 13 3 1 2 0 0

cpu  133 0 177 226681 47 6 6 21 0 0
cpu0 80 0 116 113387 33 3 4 18 0 0

cpu  133 0 178 114431 33 6 6 21 0 0 <---- jump backward
cpu0 80 0 116 114247 33 3 4 18 0 0
cpu1 52 0 61 183 0 3 1 2 0 0        <---- idle + iowait start with 0

cpu  133 0 178 228956 47 6 6 21 0 0 <---- jump forward
cpu0 81 0 117 114929 33 3 4 18 0 0

Reason for this is that get_idle_time() in fs/proc/stat.c has different
sources for both values depending on if a CPU is online or offline:

- if a CPU is online the values may be taken from its per cpu
  tick_cpu_sched structure

- if a CPU is offline the values are taken from its per cpu cpustat
  structure

The problem is that the per cpu tick_cpu_sched structure is set to zero on
CPU offline. See tick_cancel_sched_timer() in kernel/time/tick-sched.c.

Therefore when a CPU is brought offline and online afterwards both its idle
and iowait sleeptime will be zero, causing a jump backward in total system
idle and iowait sleeptime. In a similar way if a CPU is then brought
offline again the total idle and iowait sleeptimes will jump forward.

It looks like this behavior was introduced with commit 4b0c0f294f
("tick: Cleanup NOHZ per cpu data on cpu down").

This was only noticed now on s390, since we switched to generic idle time
reporting with commit be76ea614460 ("s390/idle: remove arch_cpu_idle_time()
and corresponding code").

Fix this by preserving the values of idle_sleeptime and iowait_sleeptime
members of the per-cpu tick_sched structure on CPU hotplug.

Fixes: 4b0c0f294f ("tick: Cleanup NOHZ per cpu data on cpu down")
Reported-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20240115163555.1004144-1-hca@linux.ibm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 98654bc44cfe00f1dfc8caf48079c504c473fdc3)
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
2024-02-02 11:33:45 +00:00
Greg Kroah-Hartman
fce78edbb4 Merge 4.14.322 into android-4.14-stable
Changes in 4.14.322
	gfs2: Don't deref jdesc in evict
	x86/microcode/AMD: Load late on both threads too
	x86/smp: Use dedicated cache-line for mwait_play_dead()
	fbdev: imsttfb: Fix use after free bug in imsttfb_probe
	drm/edid: Fix uninitialized variable in drm_cvt_modes()
	scripts/tags.sh: Resolve gtags empty index generation
	drm/amdgpu: Validate VM ioctl flags.
	treewide: Remove uninitialized_var() usage
	md/raid10: fix overflow of md/safe_mode_delay
	md/raid10: fix wrong setting of max_corr_read_errors
	md/raid10: fix io loss while replacement replace rdev
	PM: domains: fix integer overflow issues in genpd_parse_state()
	evm: Complete description of evm_inode_setattr()
	wifi: ath9k: fix AR9003 mac hardware hang check register offset calculation
	wifi: ath9k: avoid referencing uninit memory in ath9k_wmi_ctrl_rx
	wifi: orinoco: Fix an error handling path in spectrum_cs_probe()
	wifi: orinoco: Fix an error handling path in orinoco_cs_probe()
	wifi: atmel: Fix an error handling path in atmel_probe()
	wifi: wl3501_cs: Fix an error handling path in wl3501_probe()
	wifi: ray_cs: Fix an error handling path in ray_probe()
	wifi: ath9k: don't allow to overwrite ENDPOINT0 attributes
	watchdog/perf: define dummy watchdog_update_hrtimer_threshold() on correct config
	watchdog/perf: more properly prevent false positives with turbo modes
	kexec: fix a memory leak in crash_shrink_memory()
	memstick r592: make memstick_debug_get_tpc_name() static
	wifi: ath9k: Fix possible stall on ath9k_txq_list_has_key()
	wifi: ath9k: convert msecs to jiffies where needed
	netlink: fix potential deadlock in netlink_set_err()
	netlink: do not hard code device address lenth in fdb dumps
	gtp: Fix use-after-free in __gtp_encap_destroy().
	lib/ts_bm: reset initial match offset for every block of text
	netfilter: nf_conntrack_sip: fix the ct_sip_parse_numerical_param() return value.
	netlink: Add __sock_i_ino() for __netlink_diag_dump().
	radeon: avoid double free in ci_dpm_init()
	Input: drv260x - sleep between polling GO bit
	ARM: dts: BCM5301X: Drop "clock-names" from the SPI node
	Input: adxl34x - do not hardcode interrupt trigger type
	drm/panel: simple: fix active size for Ampire AM-480272H3TMQW-T01H
	ARM: ep93xx: fix missing-prototype warnings
	ASoC: es8316: Increment max value for ALC Capture Target Volume control
	soc/fsl/qe: fix usb.c build errors
	fbdev: omapfb: lcd_mipid: Fix an error handling path in mipid_spi_probe()
	drm/radeon: fix possible division-by-zero errors
	ALSA: ac97: Fix possible NULL dereference in snd_ac97_mixer
	scsi: 3w-xxxx: Add error handling for initialization failure in tw_probe()
	PCI: Add pci_clear_master() stub for non-CONFIG_PCI
	pinctrl: cherryview: Return correct value if pin in push-pull mode
	perf dwarf-aux: Fix off-by-one in die_get_varname()
	pinctrl: at91-pio4: check return value of devm_kasprintf()
	crypto: nx - fix build warnings when DEBUG_FS is not enabled
	modpost: fix section mismatch message for R_ARM_ABS32
	modpost: fix section mismatch message for R_ARM_{PC24,CALL,JUMP24}
	modpost: fix off by one in is_executable_section()
	USB: serial: option: add LARA-R6 01B PIDs
	block: change all __u32 annotations to __be32 in affs_hardblocks.h
	w1: fix loop in w1_fini()
	sh: j2: Use ioremap() to translate device tree address into kernel memory
	media: usb: Check az6007_read() return value
	media: videodev2.h: Fix struct v4l2_input tuner index comment
	media: usb: siano: Fix warning due to null work_func_t function pointer
	extcon: Fix kernel doc of property fields to avoid warnings
	extcon: Fix kernel doc of property capability fields to avoid warnings
	usb: phy: phy-tahvo: fix memory leak in tahvo_usb_probe()
	mfd: rt5033: Drop rt5033-battery sub-device
	mfd: intel-lpss: Add missing check for platform_get_resource
	mfd: stmpe: Only disable the regulators if they are enabled
	rtc: st-lpc: Release some resources in st_rtc_probe() in case of error
	sctp: fix potential deadlock on &net->sctp.addr_wq_lock
	Add MODULE_FIRMWARE() for FIRMWARE_TG357766.
	spi: bcm-qspi: return error if neither hif_mspi nor mspi is available
	mailbox: ti-msgmgr: Fill non-message tx data fields with 0x0
	powerpc: allow PPC_EARLY_DEBUG_CPM only when SERIAL_CPM=y
	net: bridge: keep ports without IFF_UNICAST_FLT in BR_PROMISC mode
	tcp: annotate data races in __tcp_oow_rate_limited()
	net/sched: act_pedit: Add size check for TCA_PEDIT_PARMS_EX
	sh: dma: Fix DMA channel offset calculation
	NFSD: add encoding of op_recall flag for write delegation
	mmc: core: disable TRIM on Kingston EMMC04G-M627
	mmc: core: disable TRIM on Micron MTFC4GACAJCN-1M
	integrity: Fix possible multiple allocation in integrity_inode_get()
	jffs2: reduce stack usage in jffs2_build_xattr_subsystem()
	btrfs: fix race when deleting quota root from the dirty cow roots list
	ARM: orion5x: fix d2net gpio initialization
	spi: spi-fsl-spi: remove always-true conditional in fsl_spi_do_one_msg
	spi: spi-fsl-spi: relax message sanity checking a little
	spi: spi-fsl-spi: allow changing bits_per_word while CS is still active
	netfilter: nf_tables: incorrect error path handling with NFT_MSG_NEWRULE
	netfilter: nf_tables: add NFT_TRANS_PREPARE_ERROR to deal with bound set/chain
	netfilter: nf_tables: unbind non-anonymous set if rule construction fails
	netfilter: conntrack: Avoid nf_ct_helper_hash uses after free
	netfilter: nf_tables: prevent OOB access in nft_byteorder_eval
	workqueue: clean up WORK_* constant types, clarify masking
	net: mvneta: fix txq_map in case of txq_number==1
	udp6: fix udp6_ehashfn() typo
	ntb: idt: Fix error handling in idt_pci_driver_init()
	NTB: amd: Fix error handling in amd_ntb_pci_driver_init()
	ntb: intel: Fix error handling in intel_ntb_pci_driver_init()
	NTB: ntb_transport: fix possible memory leak while device_register() fails
	ipv6/addrconf: fix a potential refcount underflow for idev
	wifi: airo: avoid uninitialized warning in airo_get_rate()
	net/sched: make psched_mtu() RTNL-less safe
	tpm: tpm_vtpm_proxy: fix a race condition in /dev/vtpmx creation
	SUNRPC: Fix UAF in svc_tcp_listen_data_ready()
	perf intel-pt: Fix CYC timestamps after standalone CBR
	ext4: fix wrong unit use in ext4_mb_clear_bb
	ext4: only update i_reserved_data_blocks on successful block allocation
	jfs: jfs_dmap: Validate db_l2nbperpage while mounting
	PCI: Add function 1 DMA alias quirk for Marvell 88SE9235
	misc: pci_endpoint_test: Re-init completion for every test
	md/raid0: add discard support for the 'original' layout
	fs: dlm: return positive pid value for F_GETLK
	hwrng: imx-rngc - fix the timeout for init and self check
	meson saradc: fix clock divider mask length
	Revert "8250: add support for ASIX devices with a FIFO bug"
	tty: serial: samsung_tty: Fix a memory leak in s3c24xx_serial_getclk() in case of error
	tty: serial: samsung_tty: Fix a memory leak in s3c24xx_serial_getclk() when iterating clk
	ring-buffer: Fix deadloop issue on reading trace_pipe
	xtensa: ISS: fix call to split_if_spec
	scsi: qla2xxx: Wait for io return on terminate rport
	scsi: qla2xxx: Fix potential NULL pointer dereference
	scsi: qla2xxx: Check valid rport returned by fc_bsg_to_rport()
	scsi: qla2xxx: Pointer may be dereferenced
	serial: atmel: don't enable IRQs prematurely
	perf probe: Add test for regression introduced by switch to die_get_decl_file()
	fuse: revalidate: don't invalidate if interrupted
	can: bcm: Fix UAF in bcm_proc_show()
	ext4: correct inline offset when handling xattrs in inode body
	debugobjects: Recheck debug_objects_enabled before reporting
	nbd: Add the maximum limit of allocated index in nbd_dev_add
	md: fix data corruption for raid456 when reshape restart while grow up
	md/raid10: prevent soft lockup while flush writes
	posix-timers: Ensure timer ID search-loop limit is valid
	sched/fair: Don't balance task to its current running CPU
	bpf: Address KCSAN report on bpf_lru_list
	wifi: wext-core: Fix -Wstringop-overflow warning in ioctl_standard_iw_point()
	igb: Fix igb_down hung on surprise removal
	spi: bcm63xx: fix max prepend length
	fbdev: imxfb: warn about invalid left/right margin
	pinctrl: amd: Use amd_pinconf_set() for all config options
	net: ethernet: ti: cpsw_ale: Fix cpsw_ale_get_field()/cpsw_ale_set_field()
	fbdev: au1200fb: Fix missing IRQ check in au1200fb_drv_probe
	llc: Don't drop packet from non-root netns.
	netfilter: nf_tables: fix spurious set element insertion failure
	tcp: annotate data-races around rskq_defer_accept
	tcp: annotate data-races around tp->notsent_lowat
	tcp: annotate data-races around fastopenq.max_qlen
	gpio: tps68470: Make tps68470_gpio_output() always set the initial value
	i40e: Fix an NULL vs IS_ERR() bug for debugfs_create_dir()
	ethernet: atheros: fix return value check in atl1e_tso_csum()
	ipv6 addrconf: fix bug where deleting a mngtmpaddr can create a new temporary address
	tcp: Reduce chance of collisions in inet6_hashfn().
	bonding: reset bond's flags when down link is P2P device
	team: reset team's flags when down link is P2P device
	platform/x86: msi-laptop: Fix rfkill out-of-sync on MSI Wind U100
	benet: fix return value check in be_lancer_xmit_workarounds()
	ASoC: fsl_spdif: Silence output on stop
	block: Fix a source code comment in include/uapi/linux/blkzoned.h
	dm raid: fix missing reconfig_mutex unlock in raid_ctr() error paths
	ata: pata_ns87415: mark ns87560_tf_read static
	ring-buffer: Fix wrong stat of cpu_buffer->read
	tracing: Fix warning in trace_buffered_event_disable()
	USB: serial: option: support Quectel EM060K_128
	USB: serial: option: add Quectel EC200A module support
	USB: serial: simple: add Kaufmann RKS+CAN VCP
	USB: serial: simple: sort driver entries
	can: gs_usb: gs_can_close(): add missing set of CAN state to CAN_STATE_STOPPED
	usb: ohci-at91: Fix the unhandle interrupt when resume
	usb: xhci-mtk: set the dma max_seg_size
	Documentation: security-bugs.rst: update preferences when dealing with the linux-distros group
	staging: ks7010: potential buffer overflow in ks_wlan_set_encode_ext()
	hwmon: (nct7802) Fix for temp6 (PECI1) processed even if PECI1 disabled
	tpm_tis: Explicitly check for error code
	irq-bcm6345-l1: Do not assume a fixed block to cpu mapping
	s390/dasd: fix hanging device after quiesce/resume
	ASoC: wm8904: Fill the cache for WM8904_ADC_TEST_0 register
	dm cache policy smq: ensure IO doesn't prevent cleaner policy progress
	drm/client: Fix memory leak in drm_client_target_cloned
	net/sched: cls_fw: Fix improper refcount update leads to use-after-free
	net/sched: sch_qfq: account for stab overhead in qfq_enqueue
	net/sched: cls_u32: Fix reference counter leak leading to overflow
	perf: Fix function pointer case
	word-at-a-time: use the same return type for has_zero regardless of endianness
	net/mlx5e: fix return value check in mlx5e_ipsec_remove_trailer()
	perf test uprobe_from_different_cu: Skip if there is no gcc
	net: add missing data-race annotations around sk->sk_peek_off
	net: add missing data-race annotation for sk_ll_usec
	net/sched: cls_u32: No longer copy tcf_result on update to avoid use-after-free
	net/sched: cls_route: No longer copy tcf_result on update to avoid use-after-free
	ip6mr: Fix skb_under_panic in ip6mr_cache_report()
	tcp_metrics: fix addr_same() helper
	tcp_metrics: annotate data-races around tm->tcpm_stamp
	tcp_metrics: annotate data-races around tm->tcpm_lock
	tcp_metrics: annotate data-races around tm->tcpm_vals[]
	tcp_metrics: annotate data-races around tm->tcpm_net
	tcp_metrics: fix data-race in tcpm_suck_dst() vs fastopen
	loop: Select I/O scheduler 'none' from inside add_disk()
	libceph: fix potential hang in ceph_osdc_notify()
	USB: zaurus: Add ID for A-300/B-500/C-700
	fs/sysv: Null check to prevent null-ptr-deref bug
	Bluetooth: L2CAP: Fix use-after-free in l2cap_sock_ready_cb
	net: usbnet: Fix WARNING in usbnet_start_xmit/usb_submit_urb
	ext2: Drop fragment support
	test_firmware: fix a memory leak with reqs buffer
	mtd: rawnand: omap_elm: Fix incorrect type in assignment
	drm/edid: fix objtool warning in drm_cvt_modes()
	Linux 4.14.322

Change-Id: Ia25c00bd23a112b634b83577ec7d54569e8b7c70
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2023-08-23 14:54:21 +00:00
Thomas Gleixner
8dc52c200b posix-timers: Ensure timer ID search-loop limit is valid
[ Upstream commit 8ce8849dd1e78dadcee0ec9acbd259d239b7069f ]

posix_timer_add() tries to allocate a posix timer ID by starting from the
cached ID which was stored by the last successful allocation.

This is done in a loop searching the ID space for a free slot one by
one. The loop has to terminate when the search wrapped around to the
starting point.

But that's racy vs. establishing the starting point. That is read out
lockless, which leads to the following problem:

CPU0	  	      	     	   CPU1
posix_timer_add()
  start = sig->posix_timer_id;
  lock(hash_lock);
  ...				   posix_timer_add()
  if (++sig->posix_timer_id < 0)
      			             start = sig->posix_timer_id;
     sig->posix_timer_id = 0;

So CPU1 can observe a negative start value, i.e. -1, and the loop break
never happens because the condition can never be true:

  if (sig->posix_timer_id == start)
     break;

While this is unlikely to ever turn into an endless loop as the ID space is
huge (INT_MAX), the racy read of the start value caught the attention of
KCSAN and Dmitry unearthed that incorrectness.

Rewrite it so that all id operations are under the hash lock.

Reported-by: syzbot+5c54bd3eb218bb595aa9@syzkaller.appspotmail.com
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/87bkhzdn6g.ffs@tglx
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-08-11 11:33:48 +02:00
Greg Kroah-Hartman
dcf8e96bea Merge 4.14.308 into android-4.14-stable
Changes in 4.14.308
	ARM: dts: rockchip: add power-domains property to dp node on rk3288
	btrfs: send: limit number of clones and allocated memory size
	IB/hfi1: Assign npages earlier
	net: Remove WARN_ON_ONCE(sk->sk_forward_alloc) from sk_stream_kill_queues().
	bpf: Do not use ax register in interpreter on div/mod
	bpf: fix subprog verifier bypass by div/mod by 0 exception
	bpf: Fix 32 bit src register truncation on div/mod
	bpf: Fix truncation handling for mod32 dst reg wrt zero
	dmaengine: sh: rcar-dmac: Check for error num after dma_set_max_seg_size
	USB: serial: option: add support for VW/Skoda "Carstick LTE"
	USB: core: Don't hold device lock while reading the "descriptors" sysfs file
	HID: asus: Remove check for same LED brightness on set
	HID: asus: use spinlock to protect concurrent accesses
	HID: asus: use spinlock to safely schedule workers
	ARM: OMAP2+: Fix memory leak in realtime_counter_init()
	ARM: zynq: Fix refcount leak in zynq_early_slcr_init
	arm64: dts: meson-gx: Fix Ethernet MAC address unit name
	arm64: dts: meson-gx: Fix the SCPI DVFS node name and unit address
	ARM: OMAP1: call platform_device_put() in error case in omap1_dm_timer_init()
	ARM: dts: exynos: correct wr-active property in Exynos3250 Rinato
	arm64: dts: amlogic: meson-gx: fix SCPI clock dvfs node name
	arm64: dts: amlogic: meson-gx: add missing unit address to rng node name
	arm64: dts: amlogic: meson-gxl: add missing unit address to eth-phy-mux node name
	block: bio-integrity: Copy flags when bio_integrity_payload is cloned
	wifi: libertas: fix memory leak in lbs_init_adapter()
	wifi: rtl8xxxu: don't call dev_kfree_skb() under spin_lock_irqsave()
	wifi: ipw2200: fix memory leak in ipw_wdev_init()
	wifi: brcmfmac: fix potential memory leak in brcmf_netdev_start_xmit()
	wifi: brcmfmac: unmap dma buffer in brcmf_msgbuf_alloc_pktid()
	wifi: libertas: main: don't call kfree_skb() under spin_lock_irqsave()
	wifi: libertas: cmdresp: don't call kfree_skb() under spin_lock_irqsave()
	wifi: wl3501_cs: don't call kfree_skb() under spin_lock_irqsave()
	genirq: Fix the return type of kstat_cpu_irqs_sum()
	lib/mpi: Fix buffer overrun when SG is too long
	ACPICA: nsrepair: handle cases without a return value correctly
	wifi: orinoco: check return value of hermes_write_wordrec()
	wifi: ath9k: htc_hst: free skb in ath9k_htc_rx_msg() if there is no callback function
	wifi: ath9k: Fix potential stack-out-of-bounds write in ath9k_wmi_rsp_callback()
	ACPI: battery: Fix missing NUL-termination with large strings
	crypto: seqiv - Handle EBUSY correctly
	net/mlx5: Enhance debug print in page allocation failure
	irqchip/alpine-msi: Fix refcount leak in alpine_msix_init_domains
	irqchip/irq-mvebu-gicp: Fix refcount leak in mvebu_gicp_probe
	cpufreq: davinci: Fix clk use after free
	Bluetooth: L2CAP: Fix potential user-after-free
	crypto: rsa-pkcs1pad - Use akcipher_request_complete
	m68k: /proc/hardware should depend on PROC_FS
	wifi: mwifiex: fix loop iterator in mwifiex_update_ampdu_txwinsize()
	can: esd_usb: Move mislocated storage of SJA1000_ECC_SEG bits in case of a bus error
	irqchip/irq-bcm7120-l2: Set IRQ_LEVEL for level triggered interrupts
	drm: mxsfb: DRM_MXSFB should depend on ARCH_MXS || ARCH_MXC
	drm/bridge: megachips: Fix error handling in i2c_register_driver()
	gpu: ipu-v3: common: Add of_node_put() for reference returned by of_graph_get_port_by_id()
	drm/msm/hdmi: Add missing check for alloc_ordered_workqueue
	pinctrl: rockchip: Fix refcount leak in rockchip_pinctrl_parse_groups
	ALSA: hda/ca0132: minor fix for allocation size
	drm/mipi-dsi: Fix byte order of 16-bit DCS set/get brightness
	drm/mediatek: Drop unbalanced obj unref
	ASoC: soc-compress.c: fixup private_data on snd_soc_new_compress()
	gpio: vf610: connect GPIO label to dev name
	hwmon: (ltc2945) Handle error case in ltc2945_value_store
	scsi: aic94xx: Add missing check for dma_map_single()
	dm: remove flush_scheduled_work() during local_exit()
	mfd: pcf50633-adc: Fix potential memleak in pcf50633_adc_async_read()
	mtd: rawnand: sunxi: Fix the size of the last OOB region
	Input: ads7846 - don't report pressure for ads7845
	Input: ads7846 - don't check penirq immediately for 7845
	powerpc/powernv/ioda: Skip unallocated resources when mapping to PE
	powerpc/pseries/lparcfg: add missing RTAS retry status handling
	MIPS: vpe-mt: drop physical_memsize
	media: platform: ti: Add missing check for devm_regulator_get
	media: rc: Fix use-after-free bugs caused by ene_tx_irqsim()
	media: usb: siano: Fix use after free bugs caused by do_submit_urb
	rpmsg: glink: Avoid infinite loop on intent for missing channel
	udf: Define EFSCORRUPTED error code
	ARM: dts: exynos: Use Exynos5420 compatible for the MIPI video phy
	wifi: brcmfmac: Fix potential stack-out-of-bounds in brcmf_c_preinit_dcmds()
	rcu: Suppress smp_processor_id() complaint in synchronize_rcu_expedited_wait()
	thermal: intel: Fix unsigned comparison with less than zero
	timers: Prevent union confusion from unexpected restart_syscall()
	x86/bugs: Reset speculation control settings on init
	inet: fix fast path in __inet_hash_connect()
	ACPI: Don't build ACPICA with '-Os'
	net: bcmgenet: Add a check for oversized packets
	m68k: Check syscall_trace_enter() return code
	ACPI: video: Fix Lenovo Ideapad Z570 DMI match
	drm/radeon: free iio for atombios when driver shutdown
	drm/msm/dsi: Add missing check for alloc_ordered_workqueue
	docs/scripts/gdb: add necessary make scripts_gdb step
	ASoC: kirkwood: Iterate over array indexes instead of using pointer math
	regulator: max77802: Bounds check regulator id against opmode
	regulator: s5m8767: Bounds check id indexing into arrays
	pinctrl: at91: use devm_kasprintf() to avoid potential leaks
	dm thin: add cond_resched() to various workqueue loops
	dm cache: add cond_resched() to various workqueue loops
	spi: bcm63xx-hsspi: Fix multi-bit mode setting
	wifi: rtl8xxxu: fixing transmisison failure for rtl8192eu
	rtc: pm8xxx: fix set-alarm race
	s390/kprobes: fix irq mask clobbering on kprobe reenter from post_handler
	s390/kprobes: fix current_kprobe never cleared after kprobes reenter
	hfs: fix missing hfs_bnode_get() in __hfs_bnode_create
	fs: hfsplus: fix UAF issue in hfsplus_put_super
	f2fs: fix information leak in f2fs_move_inline_dirents()
	ocfs2: fix defrag path triggering jbd2 ASSERT
	ocfs2: fix non-auto defrag path not working issue
	udf: Truncate added extents on failed expansion
	udf: Do not bother merging very long extents
	udf: Do not update file length for failed writes to inline files
	udf: Fix file corruption when appending just after end of preallocated extent
	x86/virt: Force GIF=1 prior to disabling SVM (for reboot flows)
	x86/crash: Disable virt in core NMI crash handler to avoid double shootdown
	x86/reboot: Disable virtualization in an emergency if SVM is supported
	x86/reboot: Disable SVM, not just VMX, when stopping CPUs
	x86/kprobes: Fix __recover_optprobed_insn check optimizing logic
	x86/kprobes: Fix arch_check_optimized_kprobe check within optimized_kprobe range
	x86/microcode/amd: Remove load_microcode_amd()'s bsp parameter
	x86/microcode/AMD: Add a @cpu parameter to the reloading functions
	x86/microcode/AMD: Fix mixed steppings support
	x86/speculation: Allow enabling STIBP with legacy IBRS
	Documentation/hw-vuln: Document the interaction between IBRS and STIBP
	ima: Align ima_file_mmap() parameters with mmap_file LSM hook
	irqdomain: Fix association race
	irqdomain: Fix disassociation race
	irqdomain: Drop bogus fwspec-mapping error handling
	ALSA: ice1712: Do not left ice->gpio_mutex locked in aureon_add_controls()
	ext4: optimize ea_inode block expansion
	ext4: refuse to create ea block when umounted
	wifi: rtl8xxxu: Use a longer retry limit of 48
	wifi: cfg80211: Fix use after free for wext
	dm flakey: fix logic when corrupting a bio
	dm flakey: don't corrupt the zero page
	ARM: dts: exynos: correct TMU phandle in Exynos4
	ARM: dts: exynos: correct TMU phandle in Odroid XU
	rbd: avoid use-after-free in do_rbd_add() when rbd_dev_create() fails
	alpha: fix FEN fault handling
	mips: fix syscall_get_nr
	ktest.pl: Fix missing "end_monitor" when machine check fails
	scsi: qla2xxx: Fix link failure in NPIV environment
	scsi: qla2xxx: Fix erroneous link down
	scsi: ses: Don't attach if enclosure has no components
	scsi: ses: Fix slab-out-of-bounds in ses_enclosure_data_process()
	scsi: ses: Fix possible addl_desc_ptr out-of-bounds accesses
	scsi: ses: Fix possible desc_ptr out-of-bounds accesses
	scsi: ses: Fix slab-out-of-bounds in ses_intf_remove()
	PCI: Avoid FLR for AMD FCH AHCI adapters
	drm/radeon: Fix eDP for single-display iMac11,2
	kbuild: Port silent mode detection to future gnu make.
	net/sched: Retire tcindex classifier
	fs/jfs: fix shift exponent db_agl2size negative
	pwm: stm32-lp: fix the check on arr and cmp registers update
	ubi: ensure that VID header offset + VID header size <= alloc, size
	ubifs: Rectify space budget for ubifs_xrename()
	ubifs: Fix wrong dirty space budget for dirty inode
	ubifs: Reserve one leb for each journal head while doing budget
	ubi: Fix use-after-free when volume resizing failed
	ubi: Fix unreferenced object reported by kmemleak in ubi_resize_volume()
	ubi: Fix possible null-ptr-deref in ubi_free_volume()
	ubifs: Re-statistic cleaned znode count if commit failed
	ubifs: dirty_cow_znode: Fix memleak in error handling path
	ubifs: ubifs_writepage: Mark page dirty after writing inode failed
	ubi: Fix UAF wear-leveling entry in eraseblk_count_seq_show()
	ubi: ubi_wl_put_peb: Fix infinite loop when wear-leveling work failed
	x86: um: vdso: Add '%rcx' and '%r11' to the syscall clobber list
	watchdog: at91sam9_wdt: use devm_request_irq to avoid missing free_irq() in error path
	watchdog: Fix kmemleak in watchdog_cdev_register
	watchdog: pcwd_usb: Fix attempting to access uninitialized memory
	netfilter: ctnetlink: fix possible refcount leak in ctnetlink_create_conntrack()
	net: fix __dev_kfree_skb_any() vs drop monitor
	9p/xen: fix version parsing
	9p/xen: fix connection sequence
	nfc: fix memory leak of se_io context in nfc_genl_se_io
	ARM: dts: spear320-hmi: correct STMPE GPIO compatible
	tcp: tcp_check_req() can be called from process context
	scsi: ipr: Work around fortify-string warning
	thermal: intel: quark_dts: fix error pointer dereference
	tracing: Add NULL checks for buffer in ring_buffer_free_read_page()
	firmware/efi sysfb_efi: Add quirk for Lenovo IdeaPad Duet 3
	media: uvcvideo: Handle cameras with invalid descriptors
	tty: fix out-of-bounds access in tty_driver_lookup_tty()
	tty: serial: fsl_lpuart: disable the CTS when send break signal
	tools/iio/iio_utils:fix memory leak
	iio: accel: mma9551_core: Prevent uninitialized variable in mma9551_read_status_word()
	iio: accel: mma9551_core: Prevent uninitialized variable in mma9551_read_config_word()
	usb: host: xhci: mvebu: Iterate over array indexes instead of using pointer math
	USB: ene_usb6250: Allocate enough memory for full object
	usb: uvc: Enumerate valid values for color matching
	phy: rockchip-typec: Fix unsigned comparison with less than zero
	Bluetooth: hci_sock: purge socket queues in the destruct() callback
	s390/maccess: add no DAT mode to kernel_write
	s390/setup: init jump labels before command line parsing
	tcp: Fix listen() regression in 4.14.303.
	thermal: intel: powerclamp: Fix cur_state for multi package system
	Linux 4.14.308

Change-Id: Iad2a41de33ff004df8050f949aa00955604b4cf6
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2023-03-12 15:40:21 +00:00
Jann Horn
59de7af9d6 timers: Prevent union confusion from unexpected restart_syscall()
[ Upstream commit 9f76d59173d9d146e96c66886b671c1915a5c5e5 ]

The nanosleep syscalls use the restart_block mechanism, with a quirk:
The `type` and `rmtp`/`compat_rmtp` fields are set up unconditionally on
syscall entry, while the rest of the restart_block is only set up in the
unlikely case that the syscall is actually interrupted by a signal (or
pseudo-signal) that doesn't have a signal handler.

If the restart_block was set up by a previous syscall (futex(...,
FUTEX_WAIT, ...) or poll()) and hasn't been invalidated somehow since then,
this will clobber some of the union fields used by futex_wait_restart() and
do_restart_poll().

If userspace afterwards wrongly calls the restart_syscall syscall,
futex_wait_restart()/do_restart_poll() will read struct fields that have
been clobbered.

This doesn't actually lead to anything particularly interesting because
none of the union fields contain trusted kernel data, and
futex(..., FUTEX_WAIT, ...) and poll() aren't syscalls where it makes much
sense to apply seccomp filters to their arguments.

So the current consequences are just of the "if userspace does bad stuff,
it can damage itself, and that's not a problem" flavor.

But still, it seems like a hazard for future developers, so invalidate the
restart_block when partly setting it up in the nanosleep syscalls.

Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20230105134403.754986-1-jannh@google.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-11 16:26:41 +01:00
Greg Kroah-Hartman
8a685dfcae Merge 4.14.307 into android-4.14-stable
Changes in 4.14.307
	wifi: rtl8xxxu: gen2: Turn on the rate control
	powerpc: dts: t208x: Mark MAC1 and MAC2 as 10G
	random: always mix cycle counter in add_latent_entropy()
	powerpc: dts: t208x: Disable 10G on MAC1 and MAC2
	alarmtimer: Prevent starvation by small intervals and SIG_IGN
	uaccess: Add speculation barrier to copy_from_user()
	wifi: mwifiex: Add missing compatible string for SD8787
	Linux 4.14.307

Change-Id: If5ceaa5a92112375336b9d7da8b0cbb7b6c3d234
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2023-02-25 15:33:56 +00:00
Thomas Gleixner
d21f4dae47 alarmtimer: Prevent starvation by small intervals and SIG_IGN
commit d125d1349abeb46945dc5e98f7824bf688266f13 upstream.

syzbot reported a RCU stall which is caused by setting up an alarmtimer
with a very small interval and ignoring the signal. The reproducer arms the
alarm timer with a relative expiry of 8ns and an interval of 9ns. Not a
problem per se, but that's an issue when the signal is ignored because then
the timer is immediately rearmed because there is no way to delay that
rearming to the signal delivery path.  See posix_timer_fn() and commit
58229a1899 ("posix-timers: Prevent softirq starvation by small intervals
and SIG_IGN") for details.

The reproducer does not set SIG_IGN explicitely, but it sets up the timers
signal with SIGCONT. That has the same effect as explicitely setting
SIG_IGN for a signal as SIGCONT is ignored if there is no handler set and
the task is not ptraced.

The log clearly shows that:

   [pid  5102] --- SIGCONT {si_signo=SIGCONT, si_code=SI_TIMER, si_timerid=0, si_overrun=316014, si_int=0, si_ptr=NULL} ---

It works because the tasks are traced and therefore the signal is queued so
the tracer can see it, which delays the restart of the timer to the signal
delivery path. But then the tracer is killed:

   [pid  5087] kill(-5102, SIGKILL <unfinished ...>
   ...
   ./strace-static-x86_64: Process 5107 detached

and after it's gone the stall can be observed:

   syzkaller login: [   79.439102][    C0] hrtimer: interrupt took 68471 ns
   [  184.460538][    C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
   ...
   [  184.658237][    C1] rcu: Stack dump where RCU GP kthread last ran:
   [  184.664574][    C1] Sending NMI from CPU 1 to CPUs 0:
   [  184.669821][    C0] NMI backtrace for cpu 0
   [  184.669831][    C0] CPU: 0 PID: 5108 Comm: syz-executor192 Not tainted 6.2.0-rc6-next-20230203-syzkaller #0
   ...
   [  184.670036][    C0] Call Trace:
   [  184.670041][    C0]  <IRQ>
   [  184.670045][    C0]  alarmtimer_fired+0x327/0x670

posix_timer_fn() prevents that by checking whether the interval for
timers which have the signal ignored is smaller than a jiffie and
artifically delay it by shifting the next expiry out by a jiffie. That's
accurate vs. the overrun accounting, but slightly inaccurate
vs. timer_gettimer(2).

The comment in that function says what needs to be done and there was a fix
available for the regular userspace induced SIG_IGN mechanism, but that did
not work due to the implicit ignore for SIGCONT and similar signals. This
needs to be worked on, but for now the only available workaround is to do
exactly what posix_timer_fn() does:

Increase the interval of self-rearming timers, which have their signal
ignored, to at least a jiffie.

Interestingly this has been fixed before via commit ff86bf0c65
("alarmtimer: Rate limit periodic intervals") already, but that fix got
lost in a later rework.

Reported-by: syzbot+b9564ba6e8e00694511b@syzkaller.appspotmail.com
Fixes: f2c45807d3 ("alarmtimer: Switch over to generic set/get/rearm routine")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: John Stultz <jstultz@google.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/87k00q1no2.ffs@tglx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-02-25 11:50:31 +01:00
Eric Biggers
d73f58abbf Merge 4.14.285 into android-4.14-stable
Changes in 4.14.285
	9p: missing chunk of "fs/9p: Don't update file type when updating file attributes"
	crypto: chacha20 - Fix keystream alignment for chacha20_block()
	random: always fill buffer in get_random_bytes_wait
	random: optimize add_interrupt_randomness
	drivers/char/random.c: remove unused dont_count_entropy
	random: Fix whitespace pre random-bytes work
	random: Return nbytes filled from hw RNG
	random: add a config option to trust the CPU's hwrng
	random: remove preempt disabled region
	random: Make crng state queryable
	random: make CPU trust a boot parameter
	drivers/char/random.c: constify poolinfo_table
	drivers/char/random.c: remove unused stuct poolinfo::poolbits
	drivers/char/random.c: make primary_crng static
	random: only read from /dev/random after its pool has received 128 bits
	random: move rand_initialize() earlier
	random: document get_random_int() family
	latent_entropy: avoid build error when plugin cflags are not set
	random: fix soft lockup when trying to read from an uninitialized blocking pool
	random: Support freezable kthreads in add_hwgenerator_randomness()
	fdt: add support for rng-seed
	random: Use wait_event_freezable() in add_hwgenerator_randomness()
	char/random: Add a newline at the end of the file
	Revert "hwrng: core - Freeze khwrng thread during suspend"
	crypto: Deduplicate le32_to_cpu_array() and cpu_to_le32_array()
	crypto: blake2s - generic C library implementation and selftest
	lib/crypto: blake2s: move hmac construction into wireguard
	lib/crypto: sha1: re-roll loops to reduce code size
	random: Don't wake crng_init_wait when crng_init == 1
	random: Add a urandom_read_nowait() for random APIs that don't warn
	random: add GRND_INSECURE to return best-effort non-cryptographic bytes
	random: ignore GRND_RANDOM in getentropy(2)
	random: make /dev/random be almost like /dev/urandom
	char/random: silence a lockdep splat with printk()
	random: fix crash on multiple early calls to add_bootloader_randomness()
	random: remove the blocking pool
	random: delete code to pull data into pools
	random: remove kernel.random.read_wakeup_threshold
	random: remove unnecessary unlikely()
	random: convert to ENTROPY_BITS for better code readability
	random: Add and use pr_fmt()
	random: fix typo in add_timer_randomness()
	random: remove some dead code of poolinfo
	random: split primary/secondary crng init paths
	random: avoid warnings for !CONFIG_NUMA builds
	x86: Remove arch_has_random, arch_has_random_seed
	powerpc: Remove arch_has_random, arch_has_random_seed
	s390: Remove arch_has_random, arch_has_random_seed
	linux/random.h: Remove arch_has_random, arch_has_random_seed
	linux/random.h: Use false with bool
	linux/random.h: Mark CONFIG_ARCH_RANDOM functions __must_check
	powerpc: Use bool in archrandom.h
	random: add arch_get_random_*long_early()
	random: avoid arch_get_random_seed_long() when collecting IRQ randomness
	random: remove dead code left over from blocking pool
	MAINTAINERS: co-maintain random.c
	crypto: blake2s - include <linux/bug.h> instead of <asm/bug.h>
	crypto: blake2s - adjust include guard naming
	random: document add_hwgenerator_randomness() with other input functions
	random: remove unused irq_flags argument from add_interrupt_randomness()
	random: use BLAKE2s instead of SHA1 in extraction
	random: do not sign extend bytes for rotation when mixing
	random: do not re-init if crng_reseed completes before primary init
	random: mix bootloader randomness into pool
	random: harmonize "crng init done" messages
	random: use IS_ENABLED(CONFIG_NUMA) instead of ifdefs
	random: initialize ChaCha20 constants with correct endianness
	random: early initialization of ChaCha constants
	random: avoid superfluous call to RDRAND in CRNG extraction
	random: don't reset crng_init_cnt on urandom_read()
	random: fix typo in comments
	random: cleanup poolinfo abstraction
	crypto: chacha20 - Fix chacha20_block() keystream alignment (again)
	random: cleanup integer types
	random: remove incomplete last_data logic
	random: remove unused extract_entropy() reserved argument
	random: try to actively add entropy rather than passively wait for it
	random: rather than entropy_store abstraction, use global
	random: remove unused OUTPUT_POOL constants
	random: de-duplicate INPUT_POOL constants
	random: prepend remaining pool constants with POOL_
	random: cleanup fractional entropy shift constants
	random: access input_pool_data directly rather than through pointer
	random: simplify arithmetic function flow in account()
	random: continually use hwgenerator randomness
	random: access primary_pool directly rather than through pointer
	random: only call crng_finalize_init() for primary_crng
	random: use computational hash for entropy extraction
	random: simplify entropy debiting
	random: use linear min-entropy accumulation crediting
	random: always wake up entropy writers after extraction
	random: make credit_entropy_bits() always safe
	random: remove use_input_pool parameter from crng_reseed()
	random: remove batched entropy locking
	random: fix locking in crng_fast_load()
	random: use RDSEED instead of RDRAND in entropy extraction
	random: inline leaves of rand_initialize()
	random: ensure early RDSEED goes through mixer on init
	random: do not xor RDRAND when writing into /dev/random
	random: absorb fast pool into input pool after fast load
	random: use hash function for crng_slow_load()
	random: remove outdated INT_MAX >> 6 check in urandom_read()
	random: zero buffer after reading entropy from userspace
	random: tie batched entropy generation to base_crng generation
	random: remove ifdef'd out interrupt bench
	random: remove unused tracepoints
	random: add proper SPDX header
	random: deobfuscate irq u32/u64 contributions
	random: introduce drain_entropy() helper to declutter crng_reseed()
	random: remove useless header comment
	random: remove whitespace and reorder includes
	random: group initialization wait functions
	random: group entropy extraction functions
	random: group entropy collection functions
	random: group userspace read/write functions
	random: group sysctl functions
	random: rewrite header introductory comment
	random: defer fast pool mixing to worker
	random: do not take pool spinlock at boot
	random: unify early init crng load accounting
	random: check for crng_init == 0 in add_device_randomness()
	random: pull add_hwgenerator_randomness() declaration into random.h
	random: clear fast pool, crng, and batches in cpuhp bring up
	random: round-robin registers as ulong, not u32
	random: only wake up writers after zap if threshold was passed
	random: cleanup UUID handling
	random: unify cycles_t and jiffies usage and types
	random: do crng pre-init loading in worker rather than irq
	random: give sysctl_random_min_urandom_seed a more sensible value
	random: don't let 644 read-only sysctls be written to
	random: replace custom notifier chain with standard one
	random: use SipHash as interrupt entropy accumulator
	random: make consistent usage of crng_ready()
	random: reseed more often immediately after booting
	random: check for signal and try earlier when generating entropy
	random: skip fast_init if hwrng provides large chunk of entropy
	random: treat bootloader trust toggle the same way as cpu trust toggle
	random: re-add removed comment about get_random_{u32,u64} reseeding
	random: mix build-time latent entropy into pool at init
	random: do not split fast init input in add_hwgenerator_randomness()
	random: do not allow user to keep crng key around on stack
	random: check for signal_pending() outside of need_resched() check
	random: check for signals every PAGE_SIZE chunk of /dev/[u]random
	random: make random_get_entropy() return an unsigned long
	random: document crng_fast_key_erasure() destination possibility
	random: fix sysctl documentation nits
	init: call time_init() before rand_initialize()
	ia64: define get_cycles macro for arch-override
	s390: define get_cycles macro for arch-override
	parisc: define get_cycles macro for arch-override
	alpha: define get_cycles macro for arch-override
	powerpc: define get_cycles macro for arch-override
	timekeeping: Add raw clock fallback for random_get_entropy()
	m68k: use fallback for random_get_entropy() instead of zero
	mips: use fallback for random_get_entropy() instead of just c0 random
	arm: use fallback for random_get_entropy() instead of zero
	nios2: use fallback for random_get_entropy() instead of zero
	x86/tsc: Use fallback for random_get_entropy() instead of zero
	um: use fallback for random_get_entropy() instead of zero
	sparc: use fallback for random_get_entropy() instead of zero
	xtensa: use fallback for random_get_entropy() instead of zero
	random: insist on random_get_entropy() existing in order to simplify
	random: do not use batches when !crng_ready()
	random: do not pretend to handle premature next security model
	random: order timer entropy functions below interrupt functions
	random: do not use input pool from hard IRQs
	random: help compiler out with fast_mix() by using simpler arguments
	siphash: use one source of truth for siphash permutations
	random: use symbolic constants for crng_init states
	random: avoid initializing twice in credit race
	random: remove ratelimiting for in-kernel unseeded randomness
	random: use proper jiffies comparison macro
	random: handle latent entropy and command line from random_init()
	random: credit architectural init the exact amount
	random: use static branch for crng_ready()
	random: remove extern from functions in header
	random: use proper return types on get_random_{int,long}_wait()
	random: move initialization functions out of hot pages
	random: move randomize_page() into mm where it belongs
	random: convert to using fops->write_iter()
	random: wire up fops->splice_{read,write}_iter()
	random: check for signals after page of pool writes
	Revert "random: use static branch for crng_ready()"
	crypto: drbg - add FIPS 140-2 CTRNG for noise source
	crypto: drbg - always seeded with SP800-90B compliant noise source
	crypto: drbg - prepare for more fine-grained tracking of seeding state
	crypto: drbg - track whether DRBG was seeded with !rng_is_initialized()
	crypto: drbg - move dynamic ->reseed_threshold adjustments to __drbg_seed()
	crypto: drbg - always try to free Jitter RNG instance
	crypto: drbg - make reseeding from get_random_bytes() synchronous
	random: avoid checking crng_ready() twice in random_init()
	random: mark bootloader randomness code as __init
	random: account for arch randomness in bits
	ASoC: cs42l52: Fix TLV scales for mixer controls
	ASoC: cs53l30: Correct number of volume levels on SX controls
	ASoC: cs42l52: Correct TLV for Bypass Volume
	ASoC: cs42l56: Correct typo in minimum level for SX volume controls
	ata: libata-core: fix NULL pointer deref in ata_host_alloc_pinfo()
	ASoC: wm8962: Fix suspend while playing music
	scsi: vmw_pvscsi: Expand vcpuHint to 16 bits
	scsi: lpfc: Fix port stuck in bypassed state after LIP in PT2PT topology
	scsi: ipr: Fix missing/incorrect resource cleanup in error case
	scsi: pmcraid: Fix missing resource cleanup in error case
	virtio-mmio: fix missing put_device() when vm_cmdline_parent registration failed
	nfc: nfcmrvl: Fix memory leak in nfcmrvl_play_deferred
	ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg
	net: ethernet: mtk_eth_soc: fix misuse of mem alloc interface netdev[napi]_alloc_frag
	random: credit cpu and bootloader seeds by default
	pNFS: Don't keep retrying if the server replied NFS4ERR_LAYOUTUNAVAILABLE
	i40e: Fix call trace in setup_tx_descriptors
	tty: goldfish: Fix free_irq() on remove
	misc: atmel-ssc: Fix IRQ check in ssc_probe
	net: bgmac: Fix an erroneous kfree() in bgmac_remove()
	arm64: ftrace: fix branch range checks
	certs/blacklist_hashes.c: fix const confusion in certs blacklist
	irqchip/gic/realview: Fix refcount leak in realview_gic_of_init
	comedi: vmk80xx: fix expression for tx buffer size
	USB: serial: option: add support for Cinterion MV31 with new baseline
	USB: serial: io_ti: add Agilent E5805A support
	usb: dwc2: Fix memory leak in dwc2_hcd_init
	usb: gadget: lpc32xx_udc: Fix refcount leak in lpc32xx_udc_probe
	serial: 8250: Store to lsr_save_flags after lsr read
	ext4: fix bug_on ext4_mb_use_inode_pa
	ext4: make variable "count" signed
	ext4: add reserved GDT blocks check
	virtio-pci: Remove wrong address verification in vp_del_vqs()
	l2tp: don't use inet_shutdown on ppp session destroy
	l2tp: fix race in pppol2tp_release with session object destroy
	s390/mm: use non-quiescing sske for KVM switch to keyed guest
	usb: gadget: u_ether: fix regression in setting fixed MAC address
	xprtrdma: fix incorrect header size calculations
	tcp: add some entropy in __inet_hash_connect()
	tcp: use different parts of the port_offset for index and offset
	tcp: add small random increments to the source port
	tcp: dynamically allocate the perturb table used by source ports
	tcp: increase source port perturb table to 2^16
	tcp: drop the hash_32() part from the index calculation
	Linux 4.14.285

Conflicts:
	crypto/chacha20_generic.c
	drivers/char/random.c
	drivers/of/fdt.c
	include/crypto/chacha20.h
	lib/chacha20.c

Merge resolution notes:
  - Added CHACHA20_KEY_SIZE and CHACHA20_BLOCK_SIZE constants to
    chacha.h, to minimize changes from the 4.14.285 version of random.c

  - Updated lib/vsprintf.c for
    "random: replace custom notifier chain with standard one".

Change-Id: I6a4ca9b12ed23f76bac6c4c9e6306e2b354e2752
Signed-off-by: Eric Biggers <ebiggers@google.com>
2022-06-28 18:00:02 +00:00
Jason A. Donenfeld
2142a4d898 timekeeping: Add raw clock fallback for random_get_entropy()
commit 1366992e16bddd5e2d9a561687f367f9f802e2e4 upstream.

The addition of random_get_entropy_fallback() provides access to
whichever time source has the highest frequency, which is useful for
gathering entropy on platforms without available cycle counters. It's
not necessarily as good as being able to quickly access a cycle counter
that the CPU has, but it's still something, even when it falls back to
being jiffies-based.

In the event that a given arch does not define get_cycles(), falling
back to the get_cycles() default implementation that returns 0 is really
not the best we can do. Instead, at least calling
random_get_entropy_fallback() would be preferable, because that always
needs to return _something_, even falling back to jiffies eventually.
It's not as though random_get_entropy_fallback() is super high precision
or guaranteed to be entropic, but basically anything that's not zero all
the time is better than returning zero all the time.

Finally, since random_get_entropy_fallback() is used during extremely
early boot when randomizing freelists in mm_init(), it can be called
before timekeeping has been initialized. In that case there really is
nothing we can do; jiffies hasn't even started ticking yet. So just give
up and return 0.

Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-25 11:46:38 +02:00
Greg Kroah-Hartman
10cf995162 Merge 4.14.259 into android-4.14-stable
Changes in 4.14.259
	nfc: fix segfault in nfc_genl_dump_devices_done
	drm/msm/dsi: set default num_data_lanes
	net/mlx4_en: Update reported link modes for 1/10G
	parisc/agp: Annotate parisc agp init functions with __init
	i2c: rk3x: Handle a spurious start completion interrupt flag
	net: netlink: af_netlink: Prevent empty skb by adding a check on len.
	tracing: Fix a kmemleak false positive in tracing_map
	bpf: fix panic due to oob in bpf_prog_test_run_skb
	hwmon: (dell-smm) Fix warning on /proc/i8k creation error
	mac80211: send ADDBA requests using the tid/queue of the aggregation session
	recordmcount.pl: look for jgnop instruction as well as bcrl on s390
	dm btree remove: fix use after free in rebalance_children()
	audit: improve robustness of the audit queue handling
	nfsd: fix use-after-free due to delegation race
	x86: Make ARCH_USE_MEMREMAP_PROT a generic Kconfig symbol
	x86/sme: Explicitly map new EFI memmap table as encrypted
	ARM: socfpga: dts: fix qspi node compatible
	dmaengine: st_fdma: fix MODULE_ALIAS
	soc/tegra: fuse: Fix bitwise vs. logical OR warning
	igbvf: fix double free in `igbvf_probe`
	ixgbe: set X550 MDIO speed before talking to PHY
	net/packet: rx_owner_map depends on pg_vec
	sit: do not call ipip6_dev_free() from sit_init_net()
	USB: gadget: bRequestType is a bitfield, not a enum
	PCI/MSI: Clear PCI_MSIX_FLAGS_MASKALL on error
	PCI/MSI: Mask MSI-X vectors only on success
	USB: serial: option: add Telit FN990 compositions
	timekeeping: Really make sure wall_to_monotonic isn't positive
	libata: if T_LENGTH is zero, dma direction should be DMA_NONE
	net: systemport: Add global locking for descriptor lifecycle
	firmware: arm_scpi: Fix string overflow in SCPI genpd driver
	ARM: dts: imx6ull-pinfunc: Fix CSI_DATA07__ESAI_TX0 pad name
	fuse: annotate lock in fuse_reverse_inval_entry()
	scsi: scsi_debug: Sanity check block descriptor length in resp_mode_select()
	net: lan78xx: Avoid unnecessary self assignment
	ARM: 8805/2: remove unneeded naked function usage
	mwifiex: Remove unnecessary braces from HostCmd_SET_SEQ_NO_BSS_INFO
	ARM: 8800/1: use choice for kernel unwinders
	Input: touchscreen - avoid bitwise vs logical OR warning
	xen/blkfront: harden blkfront against event channel storms
	xen/netfront: harden netfront against event channel storms
	xen/console: harden hvc_xen against event channel storms
	xen/netback: fix rx queue stall detection
	xen/netback: don't queue unlimited number of packages
	Linux 4.14.259

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I303d463fdd9736e88af906b3a094c872b031c7ed
2021-12-22 10:08:01 +01:00
Yu Liao
c0b25c6d1b timekeeping: Really make sure wall_to_monotonic isn't positive
commit 4e8c11b6b3f0b6a283e898344f154641eda94266 upstream.

Even after commit e1d7ba8735 ("time: Always make sure wall_to_monotonic
isn't positive") it is still possible to make wall_to_monotonic positive
by running the following code:

    int main(void)
    {
        struct timespec time;

        clock_gettime(CLOCK_MONOTONIC, &time);
        time.tv_nsec = 0;
        clock_settime(CLOCK_REALTIME, &time);
        return 0;
    }

The reason is that the second parameter of timespec64_compare(), ts_delta,
may be unnormalized because the delta is calculated with an open coded
substraction which causes the comparison of tv_sec to yield the wrong
result:

  wall_to_monotonic = { .tv_sec = -10, .tv_nsec =  900000000 }
  ts_delta 	    = { .tv_sec =  -9, .tv_nsec = -900000000 }

That makes timespec64_compare() claim that wall_to_monotonic < ts_delta,
but actually the result should be wall_to_monotonic > ts_delta.

After normalization, the result of timespec64_compare() is correct because
the tv_sec comparison is not longer misleading:

  wall_to_monotonic = { .tv_sec = -10, .tv_nsec =  900000000 }
  ts_delta 	    = { .tv_sec = -10, .tv_nsec =  100000000 }

Use timespec64_sub() to ensure that ts_delta is normalized, which fixes the
issue.

Fixes: e1d7ba8735 ("time: Always make sure wall_to_monotonic isn't positive")
Signed-off-by: Yu Liao <liaoyu15@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211213135727.1656662-1-liaoyu15@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-12-22 09:18:00 +01:00
Greg Kroah-Hartman
22dc72c914 Merge 4.14.233 into android-4.14-stable
Changes in 4.14.233
	usbip: vudc synchronize sysfs code paths
	ACPI: tables: x86: Reserve memory occupied by ACPI tables
	ACPI: x86: Call acpi_boot_table_init() after acpi_table_upgrade()
	bpf: Fix backport of "bpf: restrict unknown scalars of mixed signed bounds for unprivileged"
	bpf: fix up selftests after backports were fixed
	net: usb: ax88179_178a: initialize local variables before use
	iwlwifi: Fix softirq/hardirq disabling in iwl_pcie_enqueue_hcmd()
	MIPS: Introduce isa-rev.h to define MIPS_ISA_REV
	MIPS: cpu-features.h: Replace __mips_isa_rev with MIPS_ISA_REV
	mips: Do not include hi and lo in clobber list for R6
	bpf: Fix masking negation logic upon negative dst register
	iwlwifi: Fix softirq/hardirq disabling in iwl_pcie_gen2_enqueue_hcmd()
	ALSA: usb-audio: Add MIDI quirk for Vox ToneLab EX
	USB: Add LPM quirk for Lenovo ThinkPad USB-C Dock Gen2 Ethernet
	USB: Add reset-resume quirk for WD19's Realtek Hub
	platform/x86: thinkpad_acpi: Correct thermal sensor allocation
	s390/disassembler: increase ebpf disasm buffer size
	ACPI: custom_method: fix potential use-after-free issue
	ACPI: custom_method: fix a possible memory leak
	arm64: dts: mt8173: fix property typo of 'phys' in dsi node
	ecryptfs: fix kernel panic with null dev_name
	spi: spi-ti-qspi: Free DMA resources
	mmc: block: Update ext_csd.cache_ctrl if it was written
	mmc: core: Do a power cycle when the CMD11 fails
	mmc: core: Set read only for SD cards with permanent write protect bit
	cifs: Return correct error code from smb2_get_enc_key
	btrfs: fix metadata extent leak after failure to create subvolume
	intel_th: pci: Add Rocket Lake CPU support
	fbdev: zero-fill colormap in fbcmap.c
	staging: wimax/i2400m: fix byte-order issue
	crypto: api - check for ERR pointers in crypto_destroy_tfm()
	usb: gadget: uvc: add bInterval checking for HS mode
	usb: gadget: f_uac1: validate input parameters
	usb: dwc3: gadget: Ignore EP queue requests during bus reset
	usb: xhci: Fix port minor revision
	PCI: PM: Do not read power state in pci_enable_device_flags()
	x86/build: Propagate $(CLANG_FLAGS) to $(REALMODE_FLAGS)
	tee: optee: do not check memref size on return from Secure World
	perf/arm_pmu_platform: Fix error handling
	spi: dln2: Fix reference leak to master
	spi: omap-100k: Fix reference leak to master
	intel_th: Consistency and off-by-one fix
	phy: phy-twl4030-usb: Fix possible use-after-free in twl4030_usb_remove()
	btrfs: convert logic BUG_ON()'s in replace_path to ASSERT()'s
	scsi: lpfc: Fix incorrect dbde assignment when building target abts wqe
	scsi: lpfc: Fix pt2pt connection does not recover after LOGO
	scsi: target: pscsi: Fix warning in pscsi_complete_cmd()
	media: ite-cir: check for receive overflow
	power: supply: bq27xxx: fix power_avg for newer ICs
	extcon: arizona: Fix some issues when HPDET IRQ fires after the jack has been unplugged
	media: media/saa7164: fix saa7164_encoder_register() memory leak bugs
	media: gspca/sq905.c: fix uninitialized variable
	power: supply: Use IRQF_ONESHOT
	drm/amdgpu : Fix asic reset regression issue introduce by 8f211fe8ac7c4f
	scsi: qla2xxx: Always check the return value of qla24xx_get_isp_stats()
	scsi: qla2xxx: Fix use after free in bsg
	scsi: scsi_dh_alua: Remove check for ASC 24h in alua_rtpg()
	media: em28xx: fix memory leak
	media: vivid: update EDID
	clk: socfpga: arria10: Fix memory leak of socfpga_clk on error return
	power: supply: generic-adc-battery: fix possible use-after-free in gab_remove()
	power: supply: s3c_adc_battery: fix possible use-after-free in s3c_adc_bat_remove()
	media: adv7604: fix possible use-after-free in adv76xx_remove()
	media: i2c: adv7511-v4l2: fix possible use-after-free in adv7511_remove()
	media: i2c: adv7842: fix possible use-after-free in adv7842_remove()
	media: dvb-usb: fix memory leak in dvb_usb_adapter_init
	media: gscpa/stv06xx: fix memory leak
	drm/msm/mdp5: Configure PP_SYNC_HEIGHT to double the vtotal
	drm/amdgpu: fix NULL pointer dereference
	scsi: lpfc: Fix crash when a REG_RPI mailbox fails triggering a LOGO response
	scsi: lpfc: Remove unsupported mbox PORT_CAPABILITIES logic
	scsi: libfc: Fix a format specifier
	ALSA: emu8000: Fix a use after free in snd_emu8000_create_mixer
	ALSA: hda/conexant: Re-order CX5066 quirk table entries
	ALSA: sb: Fix two use after free in snd_sb_qsound_build
	btrfs: fix race when picking most recent mod log operation for an old root
	arm64/vdso: Discard .note.gnu.property sections in vDSO
	openvswitch: fix stack OOB read while fragmenting IPv4 packets
	ACPI: GTDT: Don't corrupt interrupt mappings on watchdow probe failure
	NFSv4: Don't discard segments marked for return in _pnfs_return_layout()
	jffs2: Fix kasan slab-out-of-bounds problem
	powerpc/eeh: Fix EEH handling for hugepages in ioremap space.
	powerpc: fix EDEADLOCK redefinition error in uapi/asm/errno.h
	intel_th: pci: Add Alder Lake-M support
	md/raid1: properly indicate failure when ending a failed write request
	security: commoncap: fix -Wstringop-overread warning
	Fix misc new gcc warnings
	jffs2: check the validity of dstlen in jffs2_zlib_compress()
	Revert 337f13046f ("futex: Allow FUTEX_CLOCK_REALTIME with FUTEX_WAIT op")
	posix-timers: Preserve return value in clock_adjtime32()
	ftrace: Handle commands when closing set_ftrace_filter file
	ext4: fix check to prevent false positive report of incorrect used inodes
	ext4: fix error code in ext4_commit_super
	media: dvbdev: Fix memory leak in dvb_media_device_free()
	usb: gadget: dummy_hcd: fix gpf in gadget_setup
	usb: gadget: Fix double free of device descriptor pointers
	usb: gadget/function/f_fs string table fix for multiple languages
	usb: dwc3: gadget: Fix START_TRANSFER link state check
	tracing: Map all PIDs to command lines
	dm persistent data: packed struct should have an aligned() attribute too
	dm space map common: fix division bug in sm_ll_find_free_block()
	dm rq: fix double free of blk_mq_tag_set in dev remove after table load fails
	modules: mark ref_module static
	modules: mark find_symbol static
	modules: mark each_symbol_section static
	modules: unexport __module_text_address
	modules: unexport __module_address
	modules: rename the licence field in struct symsearch to license
	modules: return licensing information from find_symbol
	modules: inherit TAINT_PROPRIETARY_MODULE
	Bluetooth: verify AMP hci_chan before amp_destroy
	hsr: use netdev_err() instead of WARN_ONCE()
	bluetooth: eliminate the potential race condition when removing the HCI controller
	net/nfc: fix use-after-free llcp_sock_bind/connect
	MIPS: pci-rt2880: fix slot 0 configuration
	FDDI: defxx: Bail out gracefully with unassigned PCI resource for CSR
	misc: lis3lv02d: Fix false-positive WARN on various HP models
	misc: vmw_vmci: explicitly initialize vmci_notify_bm_set_msg struct
	misc: vmw_vmci: explicitly initialize vmci_datagram payload
	tracing: Restructure trace_clock_global() to never block
	md-cluster: fix use-after-free issue when removing rdev
	md: split mddev_find
	md: factor out a mddev_find_locked helper from mddev_find
	md: md_open returns -EBUSY when entering racing area
	ipw2x00: potential buffer overflow in libipw_wx_set_encodeext()
	cfg80211: scan: drop entry from hidden_list on overflow
	drm/radeon: fix copy of uninitialized variable back to userspace
	ALSA: hda/realtek: Re-order ALC882 Acer quirk table entries
	ALSA: hda/realtek: Re-order ALC882 Sony quirk table entries
	ALSA: hda/realtek: Re-order ALC269 Sony quirk table entries
	ALSA: hda/realtek: Re-order ALC269 Lenovo quirk table entries
	ALSA: hda/realtek: Remove redundant entry for ALC861 Haier/Uniwill devices
	x86/cpu: Initialize MSR_TSC_AUX if RDTSCP *or* RDPID is supported
	KVM: s390: split kvm_s390_logical_to_effective
	KVM: s390: fix guarded storage control register handling
	KVM: s390: split kvm_s390_real_to_abs
	usb: gadget: pch_udc: Revert d3cb25a121 completely
	memory: gpmc: fix out of bounds read and dereference on gpmc_cs[]
	ARM: dts: exynos: correct PMIC interrupt trigger level on Odroid X/U3 family
	ARM: dts: exynos: correct PMIC interrupt trigger level on SMDK5250
	ARM: dts: exynos: correct PMIC interrupt trigger level on Snow
	serial: stm32: fix incorrect characters on console
	serial: stm32: fix tx_empty condition
	usb: typec: tcpci: Check ROLE_CONTROL while interpreting CC_STATUS
	x86/microcode: Check for offline CPUs before requesting new microcode
	usb: gadget: pch_udc: Replace cpu_to_le32() by lower_32_bits()
	usb: gadget: pch_udc: Check if driver is present before calling ->setup()
	usb: gadget: pch_udc: Check for DMA mapping error
	crypto: qat - don't release uninitialized resources
	crypto: qat - ADF_STATUS_PF_RUNNING should be set after adf_dev_init
	fotg210-udc: Fix DMA on EP0 for length > max packet size
	fotg210-udc: Fix EP0 IN requests bigger than two packets
	fotg210-udc: Remove a dubious condition leading to fotg210_done
	fotg210-udc: Mask GRP2 interrupts we don't handle
	fotg210-udc: Don't DMA more than the buffer can take
	fotg210-udc: Complete OUT requests on short packets
	mtd: require write permissions for locking and badblock ioctls
	bus: qcom: Put child node before return
	phy: marvell: ARMADA375_USBCLUSTER_PHY should not default to y, unconditionally
	crypto: qat - fix error path in adf_isr_resource_alloc()
	USB: gadget: udc: fix wrong pointer passed to IS_ERR() and PTR_ERR()
	mtd: rawnand: gpmi: Fix a double free in gpmi_nand_init
	staging: rtl8192u: Fix potential infinite loop
	staging: greybus: uart: fix unprivileged TIOCCSERIAL
	spi: Fix use-after-free with devm_spi_alloc_*
	soc: qcom: mdt_loader: Validate that p_filesz < p_memsz
	soc: qcom: mdt_loader: Detect truncated read of segments
	ACPI: CPPC: Replace cppc_attr with kobj_attribute
	crypto: qat - Fix a double free in adf_create_ring
	usb: gadget: r8a66597: Add missing null check on return from platform_get_resource
	USB: cdc-acm: fix unprivileged TIOCCSERIAL
	tty: actually undefine superseded ASYNC flags
	tty: fix return value for unsupported ioctls
	firmware: qcom-scm: Fix QCOM_SCM configuration
	platform/x86: pmc_atom: Match all Beckhoff Automation baytrail boards with critclk_systems DMI table
	x86/platform/uv: Fix !KEXEC build failure
	Drivers: hv: vmbus: Increase wait time for VMbus unload
	ttyprintk: Add TTY hangup callback.
	media: vivid: fix assignment of dev->fbuf_out_flags
	media: omap4iss: return error code when omap4iss_get() failed
	media: m88rs6000t: avoid potential out-of-bounds reads on arrays
	x86/kprobes: Fix to check non boostable prefixes correctly
	pata_arasan_cf: fix IRQ check
	pata_ipx4xx_cf: fix IRQ check
	sata_mv: add IRQ checks
	ata: libahci_platform: fix IRQ check
	vfio/mdev: Do not allow a mdev_type to have a NULL parent pointer
	clk: uniphier: Fix potential infinite loop
	scsi: jazz_esp: Add IRQ check
	scsi: sun3x_esp: Add IRQ check
	scsi: sni_53c710: Add IRQ check
	mfd: stm32-timers: Avoid clearing auto reload register
	HSI: core: fix resource leaks in hsi_add_client_from_dt()
	x86/events/amd/iommu: Fix sysfs type mismatch
	HID: plantronics: Workaround for double volume key presses
	perf symbols: Fix dso__fprintf_symbols_by_name() to return the number of printed chars
	net: lapbether: Prevent racing when checking whether the netif is running
	powerpc/prom: Mark identical_pvr_fixup as __init
	powerpc: Fix HAVE_HARDLOCKUP_DETECTOR_ARCH build configuration
	ALSA: core: remove redundant spin_lock pair in snd_card_disconnect
	bug: Remove redundant condition check in report_bug
	nfc: pn533: prevent potential memory corruption
	ALSA: usb-audio: Add error checks for usb_driver_claim_interface() calls
	liquidio: Fix unintented sign extension of a left shift of a u16
	powerpc/perf: Fix PMU constraint check for EBB events
	powerpc: iommu: fix build when neither PCI or IBMVIO is set
	mac80211: bail out if cipher schemes are invalid
	mt7601u: fix always true expression
	IB/hfi1: Fix error return code in parse_platform_config()
	net: thunderx: Fix unintentional sign extension issue
	i2c: cadence: add IRQ check
	i2c: emev2: add IRQ check
	i2c: jz4780: add IRQ check
	i2c: sh7760: add IRQ check
	MIPS: pci-legacy: stop using of_pci_range_to_resource
	powerpc/pseries: extract host bridge from pci_bus prior to bus removal
	rtlwifi: 8821ae: upgrade PHY and RF parameters
	i2c: sh7760: fix IRQ error path
	mwl8k: Fix a double Free in mwl8k_probe_hw
	vsock/vmci: log once the failed queue pair allocation
	RDMA/i40iw: Fix error unwinding when i40iw_hmc_sd_one fails
	net: davinci_emac: Fix incorrect masking of tx and rx error channel
	ath9k: Fix error check in ath9k_hw_read_revisions() for PCI devices
	powerpc/52xx: Fix an invalid ASM expression ('addi' used instead of 'add')
	net:emac/emac-mac: Fix a use after free in emac_mac_tx_buf_send
	net:nfc:digital: Fix a double free in digital_tg_recv_dep_req
	kfifo: fix ternary sign extension bugs
	smp: Fix smp_call_function_single_async prototype
	Revert "net/sctp: fix race condition in sctp_destroy_sock"
	sctp: delay auto_asconf init until binding the first addr
	Revert "of/fdt: Make sure no-map does not remove already reserved regions"
	Revert "fdt: Properly handle "no-map" field in the memory region"
	tpm: fix error return code in tpm2_get_cc_attrs_tbl()
	fs: dlm: fix debugfs dump
	tipc: convert dest node's address to network order
	net: stmmac: Set FIFO sizes for ipq806x
	ALSA: hdsp: don't disable if not enabled
	ALSA: hdspm: don't disable if not enabled
	ALSA: rme9652: don't disable if not enabled
	Bluetooth: Set CONF_NOT_COMPLETE as l2cap_chan default
	Bluetooth: initialize skb_queue_head at l2cap_chan_create()
	Bluetooth: check for zapped sk before connecting
	ip6_vti: proper dev_{hold|put} in ndo_[un]init methods
	mac80211: clear the beacon's CRC after channel switch
	pinctrl: samsung: use 'int' for register masks in Exynos
	cuse: prevent clone
	selftests: Set CC to clang in lib.mk if LLVM is set
	kconfig: nconf: stop endless search loops
	sctp: Fix out-of-bounds warning in sctp_process_asconf_param()
	powerpc/smp: Set numa node before updating mask
	ASoC: rt286: Generalize support for ALC3263 codec
	samples/bpf: Fix broken tracex1 due to kprobe argument change
	powerpc/pseries: Stop calling printk in rtas_stop_self()
	wl3501_cs: Fix out-of-bounds warnings in wl3501_send_pkt
	wl3501_cs: Fix out-of-bounds warnings in wl3501_mgmt_join
	powerpc/iommu: Annotate nested lock for lockdep
	net: ethernet: mtk_eth_soc: fix RX VLAN offload
	ASoC: rt286: Make RT286_SET_GPIO_* readable and writable
	f2fs: fix a redundant call to f2fs_balance_fs if an error occurs
	PCI: Release OF node in pci_scan_device()'s error path
	ARM: 9064/1: hw_breakpoint: Do not directly check the event's overflow_handler hook
	rpmsg: qcom_glink_native: fix error return code of qcom_glink_rx_data()
	NFSv4.2: Always flush out writes in nfs42_proc_fallocate()
	NFS: Deal correctly with attribute generation counter overflow
	pNFS/flexfiles: fix incorrect size check in decode_nfs_fh()
	NFSv4.2 fix handling of sr_eof in SEEK's reply
	rtc: ds1307: Fix wday settings for rx8130
	sctp: fix a SCTP_MIB_CURRESTAB leak in sctp_sf_do_dupcook_b
	drm/radeon: Fix off-by-one power_state index heap overwrite
	khugepaged: fix wrong result value for trace_mm_collapse_huge_page_isolate()
	mm/hugeltb: handle the error case in hugetlb_fix_reserve_counts()
	ksm: fix potential missing rmap_item for stable_node
	net: fix nla_strcmp to handle more then one trailing null character
	kernel: kexec_file: fix error return code of kexec_calculate_store_digests()
	netfilter: nftables: avoid overflows in nft_hash_buckets()
	ARC: entry: fix off-by-one error in syscall number validation
	powerpc/64s: Fix crashes when toggling stf barrier
	powerpc/64s: Fix crashes when toggling entry flush barrier
	squashfs: fix divide error in calculate_skip()
	userfaultfd: release page in error path to avoid BUG_ON
	drm/radeon/dpm: Disable sclk switching on Oland when two 4K 60Hz monitors are connected
	iio: proximity: pulsedlight: Fix rumtime PM imbalance on error
	usb: fotg210-hcd: Fix an error message
	ACPI: scan: Fix a memory leak in an error handling path
	blk-mq: Swap two calls in blk_mq_exit_queue()
	usb: dwc3: omap: improve extcon initialization
	usb: xhci: Increase timeout for HC halt
	usb: dwc2: Fix gadget DMA unmap direction
	usb: core: hub: fix race condition about TRSMRCY of resume
	iio: gyro: mpu3050: Fix reported temperature value
	iio: tsl2583: Fix division by a zero lux_val
	KVM: x86: Cancel pvclock_gtod_work on module removal
	FDDI: defxx: Make MMIO the configuration default except for EISA
	MIPS: Reinstate platform `__div64_32' handler
	MIPS: Avoid DIVU in `__div64_32' is result would be zero
	MIPS: Avoid handcoded DIVU in `__div64_32' altogether
	thermal/core/fair share: Lock the thermal zone while looping over instances
	RDMA/i40iw: Avoid panic when reading back the IRQ affinity hint
	kobject_uevent: remove warning in init_uevent_argv()
	netfilter: conntrack: Make global sysctls readonly in non-init netns
	clk: exynos7: Mark aclk_fsys1_200 as critical
	x86/msr: Fix wr/rdmsr_safe_regs_on_cpu() prototypes
	kgdb: fix gcc-11 warning on indentation
	usb: sl811-hcd: improve misleading indentation
	cxgb4: Fix the -Wmisleading-indentation warning
	isdn: capi: fix mismatched prototypes
	PCI: thunder: Fix compile testing
	ARM: 9066/1: ftrace: pause/unpause function graph tracer in cpu_suspend()
	ACPI / hotplug / PCI: Fix reference count leak in enable_slot()
	Input: elants_i2c - do not bind to i2c-hid compatible ACPI instantiated devices
	Input: silead - add workaround for x86 BIOS-es which bring the chip up in a stuck state
	um: Mark all kernel symbols as local
	ceph: fix fscache invalidation
	gpiolib: acpi: Add quirk to ignore EC wakeups on Dell Venue 10 Pro 5055
	ALSA: hda: generic: change the DAC ctl name for LO+SPK or LO+HP
	block: reexpand iov_iter after read/write
	lib: stackdepot: turn depot_lock spinlock to raw_spinlock
	serial: 8250: fix potential deadlock in rs485-mode
	sit: proper dev_{hold|put} in ndo_[un]init methods
	ip6_tunnel: sit: proper dev_{hold|put} in ndo_[un]init methods
	xhci: Do not use GFP_KERNEL in (potentially) atomic context
	ipv6: remove extra dev_hold() for fallback tunnels
	Linux 4.14.233

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I09e88e1e302d475f2a39bf88438dea30fa97c848
2021-05-22 11:25:16 +02:00
Chen Jun
9fbf44e7df posix-timers: Preserve return value in clock_adjtime32()
commit 2d036dfa5f10df9782f5278fc591d79d283c1fad upstream.

The return value on success (>= 0) is overwritten by the return value of
put_old_timex32(). That works correct in the fault case, but is wrong for
the success case where put_old_timex32() returns 0.

Just check the return value of put_old_timex32() and return -EFAULT in case
it is not zero.

[ tglx: Massage changelog ]

Fixes: 3a4d44b616 ("ntp: Move adjtimex related compat syscalls to native counterparts")
Signed-off-by: Chen Jun <chenjun102@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Richard Cochran <richardcochran@gmail.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20210414030449.90692-1-chenjun102@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-22 10:57:22 +02:00
Greg Kroah-Hartman
c6c06d09a5 Merge 4.14.227 into android-4.14-stable
Changes in 4.14.227
	ext4: handle error of ext4_setup_system_zone() on remount
	ext4: don't allow overlapping system zones
	ext4: check journal inode extents more carefully
	bpf: Fix off-by-one for area size in creating mask to left
	bpf: Simplify alu_limit masking for pointer arithmetic
	bpf: Add sanity check for upper ptr_limit
	net: dsa: b53: Support setting learning on port
	bpf: Prohibit alu ops for pointer types not defining ptr_limit
	Revert "PM: runtime: Update device status before letting suppliers suspend"
	perf tools: Use %define api.pure full instead of %pure-parser
	tools build feature: Check if get_current_dir_name() is available
	tools build feature: Check if eventfd() is available
	tools build: Check if gettid() is available before providing helper
	perf: Make perf able to build with latest libbfd
	tools build feature: Check if pthread_barrier_t is available
	btrfs: fix race when cloning extent buffer during rewind of an old root
	nvmet: don't check iosqes,iocqes for discovery controllers
	NFSD: Repair misuse of sv_lock in 5.10.16-rt30.
	svcrdma: disable timeouts on rdma backchannel
	sunrpc: fix refcount leak for rpc auth modules
	net/qrtr: fix __netdev_alloc_skb call
	scsi: lpfc: Fix some error codes in debugfs
	nvme-rdma: fix possible hang when failing to set io queues
	usb-storage: Add quirk to defeat Kindle's automatic unload
	USB: replace hardcode maximum usb string length by definition
	usb: gadget: configfs: Fix KASAN use-after-free
	iio:adc:stm32-adc: Add HAS_IOMEM dependency
	iio:adc:qcom-spmi-vadc: add default scale to LR_MUX2_BAT_ID channel
	iio: adis16400: Fix an error code in adis16400_initial_setup()
	iio: gyro: mpu3050: Fix error handling in mpu3050_trigger_handler
	iio: hid-sensor-humidity: Fix alignment issue of timestamp channel
	iio: hid-sensor-prox: Fix scale not correct issue
	iio: hid-sensor-temperature: Fix issues of timestamp channel
	PCI: rpadlpar: Fix potential drc_name corruption in store functions
	perf/x86/intel: Fix a crash caused by zero PEBS status
	x86/ioapic: Ignore IRQ2 again
	kernel, fs: Introduce and use set_restart_fn() and arch_set_restart_data()
	x86: Move TS_COMPAT back to asm/thread_info.h
	x86: Introduce TS_COMPAT_RESTART to fix get_nr_restart_syscall()
	ext4: find old entry again if failed to rename whiteout
	ext4: do not try to set xattr into ea_inode if value is empty
	ext4: fix potential error in ext4_do_update_inode
	genirq: Disable interrupts for force threaded handlers
	Linux 4.14.227

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Iadc3cdbdb9012457893c4448e32caee7706adb1c
2021-03-24 11:39:32 +01:00
Oleg Nesterov
591d6c21e0 kernel, fs: Introduce and use set_restart_fn() and arch_set_restart_data()
commit 5abbe51a526253b9f003e9a0a195638dc882d660 upstream.

Preparation for fixing get_nr_restart_syscall() on X86 for COMPAT.

Add a new helper which sets restart_block->fn and calls a dummy
arch_set_restart_data() helper.

Fixes: 609c19a385 ("x86/ptrace: Stop setting TS_COMPAT in ptrace code")
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20210201174641.GA17871@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-24 11:05:05 +01:00
Greg Kroah-Hartman
76cc1c09f4 Merge 4.14.207 into android-4.14-stable
Changes in 4.14.207
	regulator: defer probe when trying to get voltage from unresolved supply
	ring-buffer: Fix recursion protection transitions between interrupt context
	mm: mempolicy: fix potential pte_unmap_unlock pte error
	time: Prevent undefined behaviour in timespec64_to_ns()
	nbd: don't update block size after device is started
	btrfs: sysfs: init devices outside of the chunk_mutex
	btrfs: reschedule when cloning lots of extents
	genirq: Let GENERIC_IRQ_IPI select IRQ_DOMAIN_HIERARCHY
	hv_balloon: disable warning when floor reached
	net: xfrm: fix a race condition during allocing spi
	perf tools: Add missing swap for ino_generation
	ALSA: hda: prevent undefined shift in snd_hdac_ext_bus_get_link()
	can: rx-offload: don't call kfree_skb() from IRQ context
	can: dev: can_get_echo_skb(): prevent call to kfree_skb() in hard IRQ context
	can: dev: __can_get_echo_skb(): fix real payload length return value for RTR frames
	can: can_create_echo_skb(): fix echo skb generation: always use skb_clone()
	can: peak_usb: add range checking in decode operations
	can: peak_usb: peak_usb_get_ts_time(): fix timestamp wrapping
	can: peak_canfd: pucan_handle_can_rx(): fix echo management when loopback is on
	xfs: flush new eof page on truncate to avoid post-eof corruption
	Btrfs: fix missing error return if writeback for extent buffer never started
	ath9k_htc: Use appropriate rs_datalen type
	usb: gadget: goku_udc: fix potential crashes in probe
	gfs2: Free rd_bits later in gfs2_clear_rgrpd to fix use-after-free
	gfs2: Add missing truncate_inode_pages_final for sd_aspace
	gfs2: check for live vs. read-only file system in gfs2_fitrim
	scsi: hpsa: Fix memory leak in hpsa_init_one()
	drm/amdgpu: perform srbm soft reset always on SDMA resume
	mac80211: fix use of skb payload instead of header
	cfg80211: regulatory: Fix inconsistent format argument
	scsi: scsi_dh_alua: Avoid crash during alua_bus_detach()
	iommu/amd: Increase interrupt remapping table limit to 512 entries
	pinctrl: intel: Set default bias in case no particular value given
	ARM: 9019/1: kprobes: Avoid fortify_panic() when copying optprobe template
	pinctrl: aspeed: Fix GPI only function problem.
	nbd: fix a block_device refcount leak in nbd_release
	xfs: fix flags argument to rmap lookup when converting shared file rmaps
	xfs: fix rmap key and record comparison functions
	xfs: fix a missing unlock on error in xfs_fs_map_blocks
	of/address: Fix of_node memory leak in of_dma_is_coherent
	cosa: Add missing kfree in error path of cosa_write
	perf: Fix get_recursion_context()
	ext4: correctly report "not supported" for {usr,grp}jquota when !CONFIG_QUOTA
	ext4: unlock xattr_sem properly in ext4_inline_data_truncate()
	thunderbolt: Add the missed ida_simple_remove() in ring_request_msix()
	uio: Fix use-after-free in uio_unregister_device()
	usb: cdc-acm: Add DISABLE_ECHO for Renesas USB Download mode
	mei: protect mei_cl_mtu from null dereference
	futex: Don't enable IRQs unconditionally in put_pi_state()
	ocfs2: initialize ip_next_orphan
	selinux: Fix error return code in sel_ib_pkey_sid_slow()
	don't dump the threads that had been already exiting when zapped.
	drm/gma500: Fix out-of-bounds access to struct drm_device.vblank[]
	pinctrl: amd: use higher precision for 512 RtcClk
	pinctrl: amd: fix incorrect way to disable debounce filter
	swiotlb: fix "x86: Don't panic if can not alloc buffer for swiotlb"
	IPv6: Set SIT tunnel hard_header_len to zero
	net/af_iucv: fix null pointer dereference on shutdown
	net/x25: Fix null-ptr-deref in x25_connect
	vrf: Fix fast path output packet handling with async Netfilter rules
	r8169: fix potential skb double free in an error path
	net: Update window_clamp if SOCK_RCVBUF is set
	random32: make prandom_u32() output unpredictable
	x86/speculation: Allow IBPB to be conditionally enabled on CPUs with always-on STIBP
	perf/core: Fix bad use of igrab()
	perf/core: Fix crash when using HW tracing kernel filters
	perf/core: Fix a memory leak in perf_event_parse_addr_filter()
	xen/events: avoid removing an event channel while handling it
	xen/events: add a proper barrier to 2-level uevent unmasking
	xen/events: fix race in evtchn_fifo_unmask()
	xen/events: add a new "late EOI" evtchn framework
	xen/blkback: use lateeoi irq binding
	xen/netback: use lateeoi irq binding
	xen/scsiback: use lateeoi irq binding
	xen/pvcallsback: use lateeoi irq binding
	xen/pciback: use lateeoi irq binding
	xen/events: switch user event channels to lateeoi model
	xen/events: use a common cpu hotplug hook for event channels
	xen/events: defer eoi in case of excessive number of events
	xen/events: block rogue events for some time
	perf/core: Fix race in the perf_mmap_close() function
	Revert "kernel/reboot.c: convert simple_strtoul to kstrtoint"
	reboot: fix overflow parsing reboot cpu number
	Convert trailing spaces and periods in path components
	mm: fix exec activate_mm vs TLB shootdown and lazy tlb switching race
	Linux 4.14.207

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Id9671f12372dd8919395ce4f175ce1a5a06ef68f
2020-11-19 09:53:10 +01:00
George Spelvin
a16f026330 random32: make prandom_u32() output unpredictable
commit c51f8f88d705e06bd696d7510aff22b33eb8e638 upstream.

Non-cryptographic PRNGs may have great statistical properties, but
are usually trivially predictable to someone who knows the algorithm,
given a small sample of their output.  An LFSR like prandom_u32() is
particularly simple, even if the sample is widely scattered bits.

It turns out the network stack uses prandom_u32() for some things like
random port numbers which it would prefer are *not* trivially predictable.
Predictability led to a practical DNS spoofing attack.  Oops.

This patch replaces the LFSR with a homebrew cryptographic PRNG based
on the SipHash round function, which is in turn seeded with 128 bits
of strong random key.  (The authors of SipHash have *not* been consulted
about this abuse of their algorithm.)  Speed is prioritized over security;
attacks are rare, while performance is always wanted.

Replacing all callers of prandom_u32() is the quick fix.
Whether to reinstate a weaker PRNG for uses which can tolerate it
is an open question.

Commit f227e3ec3b5c ("random32: update the net random state on interrupt
and activity") was an earlier attempt at a solution.  This patch replaces
it.

Reported-by: Amit Klein <aksecurity@gmail.com>
Cc: Willy Tarreau <w@1wt.eu>
Cc: Eric Dumazet <edumazet@google.com>
Cc: "Jason A. Donenfeld" <Jason@zx2c4.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: tytso@mit.edu
Cc: Florian Westphal <fw@strlen.de>
Cc: Marc Plumb <lkml.mplumb@gmail.com>
Fixes: f227e3ec3b5c ("random32: update the net random state on interrupt and activity")
Signed-off-by: George Spelvin <lkml@sdf.org>
Link: https://lore.kernel.org/netdev/20200808152628.GA27941@SDF.ORG/
[ willy: partial reversal of f227e3ec3b5c; moved SIPROUND definitions
  to prandom.h for later use; merged George's prandom_seed() proposal;
  inlined siprand_u32(); replaced the net_rand_state[] array with 4
  members to fix a build issue; cosmetic cleanups to make checkpatch
  happy; fixed RANDOM32_SELFTEST build ]
[wt: backported to 4.14 -- various context adjustments; timer API change]
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-18 18:28:00 +01:00
Zeng Tao
1b0c077318 time: Prevent undefined behaviour in timespec64_to_ns()
[ Upstream commit cb47755725da7b90fecbb2aa82ac3b24a7adb89b ]

UBSAN reports:

Undefined behaviour in ./include/linux/time64.h:127:27
signed integer overflow:
17179869187 * 1000000000 cannot be represented in type 'long long int'
Call Trace:
 timespec64_to_ns include/linux/time64.h:127 [inline]
 set_cpu_itimer+0x65c/0x880 kernel/time/itimer.c:180
 do_setitimer+0x8e/0x740 kernel/time/itimer.c:245
 __x64_sys_setitimer+0x14c/0x2c0 kernel/time/itimer.c:336
 do_syscall_64+0xa1/0x540 arch/x86/entry/common.c:295

Commit bd40a175769d ("y2038: itimer: change implementation to timespec64")
replaced the original conversion which handled time clamping correctly with
timespec64_to_ns() which has no overflow protection.

Fix it in timespec64_to_ns() as this is not necessarily limited to the
usage in itimers.

[ tglx: Added comment and adjusted the fixes tag ]

Fixes: 361a3bf005 ("time64: Add time64.h header and define struct timespec64")
Signed-off-by: Zeng Tao <prime.zeng@hisilicon.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/1598952616-6416-1-git-send-email-prime.zeng@hisilicon.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18 18:27:52 +01:00
Greg Kroah-Hartman
c1013a481e Merge 4.14.200 into android-4.14-stable
Changes in 4.14.200
	af_key: pfkey_dump needs parameter validation
	phy: qcom-qmp: Use correct values for ipq8074 PCIe Gen2 PHY init
	KVM: fix memory leak in kvm_io_bus_unregister_dev()
	kprobes: fix kill kprobe which has been marked as gone
	mm/thp: fix __split_huge_pmd_locked() for migration PMD
	RDMA/ucma: ucma_context reference leak in error path
	hdlc_ppp: add range checks in ppp_cp_parse_cr()
	ip: fix tos reflection in ack and reset packets
	net: ipv6: fix kconfig dependency warning for IPV6_SEG6_HMAC
	tipc: fix shutdown() of connection oriented socket
	tipc: use skb_unshare() instead in tipc_buf_append()
	bnxt_en: Protect bnxt_set_eee() and bnxt_set_pauseparam() with mutex.
	net: phy: Avoid NPD upon phy_detach() when driver is unbound
	net: add __must_check to skb_put_padto()
	ipv4: Update exception handling for multipath routes via same device
	geneve: add transport ports in route lookup for geneve
	serial: 8250: Avoid error message on reprobe
	mm: fix double page fault on arm64 if PTE_AF is cleared
	scsi: aacraid: fix illegal IO beyond last LBA
	m68k: q40: Fix info-leak in rtc_ioctl
	gma/gma500: fix a memory disclosure bug due to uninitialized bytes
	ASoC: kirkwood: fix IRQ error handling
	media: smiapp: Fix error handling at NVM reading
	arch/x86/lib/usercopy_64.c: fix __copy_user_flushcache() cache writeback
	x86/ioapic: Unbreak check_timer()
	ALSA: usb-audio: Add delay quirk for H570e USB headsets
	ALSA: hda/realtek - Couldn't detect Mic if booting with headset plugged
	PM / devfreq: tegra30: Fix integer overflow on CPU's freq max out
	scsi: fnic: fix use after free
	clk/ti/adpll: allocate room for terminating null
	mtd: cfi_cmdset_0002: don't free cfi->cfiq in error path of cfi_amdstd_setup()
	mfd: mfd-core: Protect against NULL call-back function pointer
	tracing: Adding NULL checks for trace_array descriptor pointer
	bcache: fix a lost wake-up problem caused by mca_cannibalize_lock
	RDMA/i40iw: Fix potential use after free
	xfs: fix attr leaf header freemap.size underflow
	RDMA/iw_cgxb4: Fix an error handling path in 'c4iw_connect()'
	mmc: core: Fix size overflow for mmc partitions
	gfs2: clean up iopen glock mess in gfs2_create_inode
	debugfs: Fix !DEBUG_FS debugfs_create_automount
	CIFS: Properly process SMB3 lease breaks
	kernel/sys.c: avoid copying possible padding bytes in copy_to_user
	neigh_stat_seq_next() should increase position index
	rt_cpu_seq_next should increase position index
	seqlock: Require WRITE_ONCE surrounding raw_seqcount_barrier
	media: ti-vpe: cal: Restrict DMA to avoid memory corruption
	ACPI: EC: Reference count query handlers under lock
	dmaengine: zynqmp_dma: fix burst length configuration
	powerpc/eeh: Only dump stack once if an MMIO loop is detected
	tracing: Set kernel_stack's caller size properly
	ar5523: Add USB ID of SMCWUSBT-G2 wireless adapter
	selftests/ftrace: fix glob selftest
	tools/power/x86/intel_pstate_tracer: changes for python 3 compatibility
	Bluetooth: Fix refcount use-after-free issue
	mm: pagewalk: fix termination condition in walk_pte_range()
	Bluetooth: prefetch channel before killing sock
	KVM: fix overflow of zero page refcount with ksm running
	ALSA: hda: Clear RIRB status before reading WP
	skbuff: fix a data race in skb_queue_len()
	audit: CONFIG_CHANGE don't log internal bookkeeping as an event
	selinux: sel_avc_get_stat_idx should increase position index
	scsi: lpfc: Fix RQ buffer leakage when no IOCBs available
	scsi: lpfc: Fix coverity errors in fmdi attribute handling
	drm/omap: fix possible object reference leak
	perf test: Fix test trace+probe_vfs_getname.sh on s390
	RDMA/rxe: Fix configuration of atomic queue pair attributes
	KVM: x86: fix incorrect comparison in trace event
	media: staging/imx: Missing assignment in imx_media_capture_device_register()
	x86/pkeys: Add check for pkey "overflow"
	bpf: Remove recursion prevention from rcu free callback
	dmaengine: tegra-apb: Prevent race conditions on channel's freeing
	media: go7007: Fix URB type for interrupt handling
	Bluetooth: guard against controllers sending zero'd events
	timekeeping: Prevent 32bit truncation in scale64_check_overflow()
	ext4: fix a data race at inode->i_disksize
	mm: avoid data corruption on CoW fault into PFN-mapped VMA
	drm/amdgpu: increase atombios cmd timeout
	ath10k: use kzalloc to read for ath10k_sdio_hif_diag_read
	scsi: aacraid: Disabling TM path and only processing IOP reset
	Bluetooth: L2CAP: handle l2cap config request during open state
	media: tda10071: fix unsigned sign extension overflow
	xfs: don't ever return a stale pointer from __xfs_dir3_free_read
	tpm: ibmvtpm: Wait for buffer to be set before proceeding
	rtc: ds1374: fix possible race condition
	tracing: Use address-of operator on section symbols
	serial: 8250_port: Don't service RX FIFO if throttled
	serial: 8250_omap: Fix sleeping function called from invalid context during probe
	serial: 8250: 8250_omap: Terminate DMA before pushing data on RX timeout
	perf cpumap: Fix snprintf overflow check
	cpufreq: powernv: Fix frame-size-overflow in powernv_cpufreq_work_fn
	tools: gpio-hammer: Avoid potential overflow in main
	RDMA/rxe: Set sys_image_guid to be aligned with HW IB devices
	SUNRPC: Fix a potential buffer overflow in 'svc_print_xprts()'
	svcrdma: Fix leak of transport addresses
	ubifs: Fix out-of-bounds memory access caused by abnormal value of node_len
	ALSA: usb-audio: Fix case when USB MIDI interface has more than one extra endpoint descriptor
	NFS: Fix races nfs_page_group_destroy() vs nfs_destroy_unlinked_subrequests()
	mm/kmemleak.c: use address-of operator on section symbols
	mm/filemap.c: clear page error before actual read
	mm/vmscan.c: fix data races using kswapd_classzone_idx
	mm/mmap.c: initialize align_offset explicitly for vm_unmapped_area
	scsi: qedi: Fix termination timeouts in session logout
	serial: uartps: Wait for tx_empty in console setup
	KVM: Remove CREATE_IRQCHIP/SET_PIT2 race
	bdev: Reduce time holding bd_mutex in sync in blkdev_close()
	drivers: char: tlclk.c: Avoid data race between init and interrupt handler
	staging:r8188eu: avoid skb_clone for amsdu to msdu conversion
	sparc64: vcc: Fix error return code in vcc_probe()
	arm64: cpufeature: Relax checks for AArch32 support at EL[0-2]
	dt-bindings: sound: wm8994: Correct required supplies based on actual implementaion
	atm: fix a memory leak of vcc->user_back
	power: supply: max17040: Correct voltage reading
	phy: samsung: s5pv210-usb2: Add delay after reset
	Bluetooth: Handle Inquiry Cancel error after Inquiry Complete
	USB: EHCI: ehci-mv: fix error handling in mv_ehci_probe()
	tty: serial: samsung: Correct clock selection logic
	ALSA: hda: Fix potential race in unsol event handler
	powerpc/traps: Make unrecoverable NMIs die instead of panic
	fuse: don't check refcount after stealing page
	USB: EHCI: ehci-mv: fix less than zero comparison of an unsigned int
	arm64/cpufeature: Drop TraceFilt feature exposure from ID_DFR0 register
	e1000: Do not perform reset in reset_task if we are already down
	drm/nouveau/debugfs: fix runtime pm imbalance on error
	printk: handle blank console arguments passed in.
	usb: dwc3: Increase timeout for CmdAct cleared by device controller
	btrfs: don't force read-only after error in drop snapshot
	vfio/pci: fix memory leaks of eventfd ctx
	perf util: Fix memory leak of prefix_if_not_in
	perf kcore_copy: Fix module map when there are no modules loaded
	mtd: rawnand: omap_elm: Fix runtime PM imbalance on error
	ceph: fix potential race in ceph_check_caps
	mm/swap_state: fix a data race in swapin_nr_pages
	rapidio: avoid data race between file operation callbacks and mport_cdev_add().
	mtd: parser: cmdline: Support MTD names containing one or more colons
	x86/speculation/mds: Mark mds_user_clear_cpu_buffers() __always_inline
	vfio/pci: Clear error and request eventfd ctx after releasing
	cifs: Fix double add page to memcg when cifs_readpages
	scsi: libfc: Handling of extra kref
	scsi: libfc: Skip additional kref updating work event
	selftests/x86/syscall_nt: Clear weird flags after each test
	vfio/pci: fix racy on error and request eventfd ctx
	btrfs: qgroup: fix data leak caused by race between writeback and truncate
	s390/init: add missing __init annotations
	i2c: core: Call i2c_acpi_install_space_handler() before i2c_acpi_register_devices()
	objtool: Fix noreturn detection for ignored functions
	ieee802154: fix one possible memleak in ca8210_dev_com_init
	ieee802154/adf7242: check status of adf7242_read_reg
	clocksource/drivers/h8300_timer8: Fix wrong return value in h8300_8timer_init()
	mwifiex: Increase AES key storage size to 256 bits
	batman-adv: bla: fix type misuse for backbone_gw hash indexing
	atm: eni: fix the missed pci_disable_device() for eni_init_one()
	batman-adv: mcast/TT: fix wrongly dropped or rerouted packets
	mac802154: tx: fix use-after-free
	drm/vc4/vc4_hdmi: fill ASoC card owner
	net: qed: RDMA personality shouldn't fail VF load
	batman-adv: Add missing include for in_interrupt()
	batman-adv: mcast: fix duplicate mcast packets in BLA backbone from mesh
	ALSA: asihpi: fix iounmap in error handler
	MIPS: Add the missing 'CPU_1074K' into __get_cpu_type()
	s390/dasd: Fix zero write for FBA devices
	kprobes: Fix to check probe enabled before disarm_kprobe_ftrace()
	mm, THP, swap: fix allocating cluster for swapfile by mistake
	lib/string.c: implement stpcpy
	ata: define AC_ERR_OK
	ata: make qc_prep return ata_completion_errors
	ata: sata_mv, avoid trigerrable BUG_ON
	Linux 4.14.200

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I3d3049dca196c46cb6b2a66d60a5a6a3a099efbb
2020-10-01 17:59:29 +02:00
Wen Yang
62658ebe5c timekeeping: Prevent 32bit truncation in scale64_check_overflow()
[ Upstream commit 4cbbc3a0eeed675449b1a4d080008927121f3da3 ]

While unlikely the divisor in scale64_check_overflow() could be >= 32bit in
scale64_check_overflow(). do_div() truncates the divisor to 32bit at least
on 32bit platforms.

Use div64_u64() instead to avoid the truncation to 32-bit.

[ tglx: Massaged changelog ]

Signed-off-by: Wen Yang <wenyang@linux.alibaba.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200120100523.45656-1-wenyang@linux.alibaba.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-01 13:12:36 +02:00
Srinivasarao P
0190a01fb1 Merge android-4.14-stable.190 (d2d05bc) into msm-4.14
* refs/heads/tmp-d2d05bc:
  Linux 4.14.190
  ath9k: Fix regression with Atheros 9271
  ath9k: Fix general protection fault in ath9k_hif_usb_rx_cb
  parisc: Add atomic64_set_release() define to avoid CPU soft lockups
  io-mapping: indicate mapping failure
  mm/memcg: fix refcount error while moving and swapping
  Makefile: Fix GCC_TOOLCHAIN_DIR prefix for Clang cross compilation
  vt: Reject zero-sized screen buffer size.
  fbdev: Detect integer underflow at "struct fbcon_ops"->clear_margins.
  serial: 8250_mtk: Fix high-speed baud rates clamping
  serial: 8250: fix null-ptr-deref in serial8250_start_tx()
  staging: comedi: addi_apci_1564: check INSN_CONFIG_DIGITAL_TRIG shift
  staging: comedi: addi_apci_1500: check INSN_CONFIG_DIGITAL_TRIG shift
  staging: comedi: ni_6527: fix INSN_CONFIG_DIGITAL_TRIG support
  staging: comedi: addi_apci_1032: check INSN_CONFIG_DIGITAL_TRIG shift
  staging: wlan-ng: properly check endpoint types
  Revert "cifs: Fix the target file was deleted when rename failed."
  usb: xhci: Fix ASM2142/ASM3142 DMA addressing
  usb: xhci-mtk: fix the failure of bandwidth allocation
  binder: Don't use mmput() from shrinker function.
  x86: math-emu: Fix up 'cmp' insn for clang ias
  arm64: Use test_tsk_thread_flag() for checking TIF_SINGLESTEP
  usb: gadget: udc: gr_udc: fix memleak on error handling path in gr_ep_init()
  Input: synaptics - enable InterTouch for ThinkPad X1E 1st gen
  dmaengine: ioat setting ioat timeout as module parameter
  hwmon: (aspeed-pwm-tacho) Avoid possible buffer overflow
  regmap: dev_get_regmap_match(): fix string comparison
  spi: mediatek: use correct SPI_CFG2_REG MACRO
  Input: add `SW_MACHINE_COVER`
  dmaengine: tegra210-adma: Fix runtime PM imbalance on error
  HID: apple: Disable Fn-key key-re-mapping on clone keyboards
  HID: i2c-hid: add Mediacom FlexBook edge13 to descriptor override
  scripts/decode_stacktrace: strip basepath from all paths
  serial: exar: Fix GPIO configuration for Sealevel cards based on XR17V35X
  bonding: check return value of register_netdevice() in bond_newlink()
  i2c: rcar: always clear ICSAR to avoid side effects
  ipvs: fix the connection sync failed in some cases
  mlxsw: destroy workqueue when trap_register in mlxsw_emad_init
  bonding: check error value of register_netdevice() immediately
  net: smc91x: Fix possible memory leak in smc_drv_probe()
  drm: sun4i: hdmi: Fix inverted HPD result
  net: dp83640: fix SIOCSHWTSTAMP to update the struct with actual configuration
  ax88172a: fix ax88172a_unbind() failures
  hippi: Fix a size used in a 'pci_free_consistent()' in an error handling path
  bnxt_en: Fix race when modifying pause settings.
  btrfs: fix page leaks after failure to lock page for delalloc
  btrfs: fix mount failure caused by race with umount
  btrfs: fix double free on ulist after backref resolution failure
  ASoC: rt5670: Correct RT5670_LDO_SEL_MASK
  ALSA: info: Drop WARN_ON() from buffer NULL sanity check
  uprobes: Change handle_swbp() to send SIGTRAP with si_code=SI_KERNEL, to fix GDB regression
  IB/umem: fix reference count leak in ib_umem_odp_get()
  spi: spi-fsl-dspi: Exit the ISR with IRQ_NONE when it's not ours
  SUNRPC reverting d03727b248d0 ("NFSv4 fix CLOSE not waiting for direct IO compeletion")
  irqdomain/treewide: Keep firmware node unconditionally allocated
  drm/nouveau/i2c/g94-: increase NV_PMGR_DP_AUXCTL_TRANSACTREQ timeout
  net: sky2: initialize return of gm_phy_read
  drivers/net/wan/lapbether: Fixed the value of hard_header_len
  xtensa: update *pos in cpuinfo_op.next
  xtensa: fix __sync_fetch_and_{and,or}_4 declarations
  scsi: scsi_transport_spi: Fix function pointer check
  mac80211: allow rx of mesh eapol frames with default rx key
  pinctrl: amd: fix npins for uart0 in kerncz_groups
  gpio: arizona: put pm_runtime in case of failure
  gpio: arizona: handle pm_runtime_get_sync failure case
  ANDROID: Incremental fs: magic number compatible 32-bit
  ANDROID: kbuild: don't merge .*..compoundliteral in modules
  Revert "arm64/alternatives: use subsections for replacement sequences"
  Linux 4.14.189
  rxrpc: Fix trace string
  libceph: don't omit recovery_deletes in target_copy()
  x86/cpu: Move x86_cache_bits settings
  sched/fair: handle case of task_h_load() returning 0
  arm64: ptrace: Override SPSR.SS when single-stepping is enabled
  thermal/drivers/cpufreq_cooling: Fix wrong frequency converted from power
  misc: atmel-ssc: lock with mutex instead of spinlock
  dmaengine: fsl-edma: Fix NULL pointer exception in fsl_edma_tx_handler
  intel_th: pci: Add Emmitsburg PCH support
  intel_th: pci: Add Tiger Lake PCH-H support
  intel_th: pci: Add Jasper Lake CPU support
  hwmon: (emc2103) fix unable to change fan pwm1_enable attribute
  MIPS: Fix build for LTS kernel caused by backporting lpj adjustment
  timer: Fix wheel index calculation on last level
  uio_pdrv_genirq: fix use without device tree and no interrupt
  Input: i8042 - add Lenovo XiaoXin Air 12 to i8042 nomux list
  mei: bus: don't clean driver pointer
  Revert "zram: convert remaining CLASS_ATTR() to CLASS_ATTR_RO()"
  fuse: Fix parameter for FS_IOC_{GET,SET}FLAGS
  virtio: virtio_console: add missing MODULE_DEVICE_TABLE() for rproc serial
  USB: serial: option: add Quectel EG95 LTE modem
  USB: serial: option: add GosunCn GM500 series
  USB: serial: ch341: add new Product ID for CH340
  USB: serial: cypress_m8: enable Simply Automated UPB PIM
  USB: serial: iuu_phoenix: fix memory corruption
  usb: gadget: function: fix missing spinlock in f_uac1_legacy
  usb: chipidea: core: add wakeup support for extcon
  usb: dwc2: Fix shutdown callback in platform
  USB: c67x00: fix use after free in c67x00_giveback_urb
  ALSA: usb-audio: Fix race against the error recovery URB submission
  ALSA: line6: Perform sanity check for each URB creation
  HID: magicmouse: do not set up autorepeat
  mtd: rawnand: oxnas: Release all devices in the _remove() path
  mtd: rawnand: oxnas: Unregister all devices on error
  mtd: rawnand: oxnas: Keep track of registered devices
  mtd: rawnand: brcmnand: fix CS0 layout
  perf stat: Zero all the 'ena' and 'run' array slot stats for interval mode
  copy_xstate_to_kernel: Fix typo which caused GDB regression
  ARM: dts: socfpga: Align L2 cache-controller nodename with dtschema
  Revert "thermal: mediatek: fix register index error"
  staging: comedi: verify array index is correct before using it
  usb: gadget: udc: atmel: fix uninitialized read in debug printk
  spi: spi-sun6i: sun6i_spi_transfer_one(): fix setting of clock rate
  arm64: dts: meson: add missing gxl rng clock
  phy: sun4i-usb: fix dereference of pointer phy0 before it is null checked
  iio:health:afe4404 Fix timestamp alignment and prevent data leak.
  ACPI: video: Use native backlight on Acer TravelMate 5735Z
  ACPI: video: Use native backlight on Acer Aspire 5783z
  mmc: sdhci: do not enable card detect interrupt for gpio cd type
  doc: dt: bindings: usb: dwc3: Update entries for disabling SS instances in park mode
  Revert "usb/xhci-plat: Set PM runtime as active on resume"
  Revert "usb/ehci-platform: Set PM runtime as active on resume"
  Revert "usb/ohci-platform: Fix a warning when hibernating"
  of: of_mdio: Correct loop scanning logic
  net: dsa: bcm_sf2: Fix node reference count
  spi: fix initial SPI_SR value in spi-fsl-dspi
  spi: spi-fsl-dspi: Fix lockup if device is shutdown during SPI transfer
  iio:health:afe4403 Fix timestamp alignment and prevent data leak.
  iio:pressure:ms5611 Fix buffer element alignment
  iio: pressure: zpa2326: handle pm_runtime_get_sync failure
  iio: mma8452: Add missed iio_device_unregister() call in mma8452_probe()
  iio: magnetometer: ak8974: Fix runtime PM imbalance on error
  iio:humidity:hdc100x Fix alignment and data leak issues
  iio:magnetometer:ak8974: Fix alignment and data leak issues
  arm64/alternatives: don't patch up internal branches
  arm64: alternative: Use true and false for boolean values
  i2c: eg20t: Load module automatically if ID matches
  gfs2: read-only mounts should grab the sd_freeze_gl glock
  tpm_tis: extra chip->ops check on error path in tpm_tis_core_init
  arm64/alternatives: use subsections for replacement sequences
  drm/exynos: fix ref count leak in mic_pre_enable
  cgroup: Fix sock_cgroup_data on big-endian.
  cgroup: fix cgroup_sk_alloc() for sk_clone_lock()
  tcp: md5: do not send silly options in SYNCOOKIES
  tcp: make sure listeners don't initialize congestion-control state
  net_sched: fix a memory leak in atm_tc_init()
  tcp: md5: allow changing MD5 keys in all socket states
  tcp: md5: refine tcp_md5_do_add()/tcp_md5_hash_key() barriers
  tcp: md5: add missing memory barriers in tcp_md5_do_add()/tcp_md5_hash_key()
  net: usb: qmi_wwan: add support for Quectel EG95 LTE modem
  net: Added pointer check for dst->ops->neigh_lookup in dst_neigh_lookup_skb
  llc: make sure applications use ARPHRD_ETHER
  l2tp: remove skb_dst_set() from l2tp_xmit_skb()
  ipv4: fill fl4_icmp_{type,code} in ping_v4_sendmsg
  genetlink: remove genl_bind
  s390/mm: fix huge pte soft dirty copying
  ARC: elf: use right ELF_ARCH
  ARC: entry: fix potential EFA clobber when TIF_SYSCALL_TRACE
  dm: use noio when sending kobject event
  drm/radeon: fix double free
  btrfs: fix fatal extent_buffer readahead vs releasepage race
  Revert "ath9k: Fix general protection fault in ath9k_hif_usb_rx_cb"
  KVM: x86: Mark CR4.TSD as being possibly owned by the guest
  KVM: x86: Inject #GP if guest attempts to toggle CR4.LA57 in 64-bit mode
  KVM: x86: bit 8 of non-leaf PDPEs is not reserved
  KVM: arm64: Stop clobbering x0 for HVC_SOFT_RESTART
  KVM: arm64: Fix definition of PAGE_HYP_DEVICE
  ALSA: usb-audio: add quirk for MacroSilicon MS2109
  ALSA: hda - let hs_mic be picked ahead of hp_mic
  ALSA: opl3: fix infoleak in opl3
  mlxsw: spectrum_router: Remove inappropriate usage of WARN_ON()
  net: macb: mark device wake capable when "magic-packet" property present
  bnxt_en: fix NULL dereference in case SR-IOV configuration fails
  nbd: Fix memory leak in nbd_add_socket
  arm64: kgdb: Fix single-step exception handling oops
  ALSA: compress: fix partial_drain completion state
  smsc95xx: avoid memory leak in smsc95xx_bind
  smsc95xx: check return value of smsc95xx_reset
  net: cxgb4: fix return error value in t4_prep_fw
  x86/entry: Increase entry_stack size to a full page
  nvme-rdma: assign completion vector correctly
  scsi: mptscsih: Fix read sense data size
  ARM: imx6: add missing put_device() call in imx6q_suspend_init()
  cifs: update ctime and mtime during truncate
  s390/kasan: fix early pgm check handler execution
  ixgbe: protect ring accesses with READ- and WRITE_ONCE
  spi: spidev: fix a potential use-after-free in spidev_release()
  spi: spidev: fix a race between spidev_release and spidev_remove
  gpu: host1x: Detach driver on unregister
  ARM: dts: omap4-droid4: Fix spi configuration and increase rate
  spi: spi-fsl-dspi: Fix external abort on interrupt in resume or exit paths
  spi: spi-fsl-dspi: use IRQF_SHARED mode to request IRQ
  spi: spi-fsl-dspi: Fix lockup if device is removed during SPI transfer
  spi: spi-fsl-dspi: Adding shutdown hook
  KVM: s390: reduce number of IO pins to 1
  UPSTREAM: perf/core: Fix crash when using HW tracing kernel filters
  ANDROID: fscrypt: fix DUN contiguity with inline encryption + IV_INO_LBLK_32 policies
  ANDROID: f2fs: add back compress inode check
  Linux 4.14.188
  efi: Make it possible to disable efivar_ssdt entirely
  dm zoned: assign max_io_len correctly
  irqchip/gic: Atomically update affinity
  MIPS: Add missing EHB in mtc0 -> mfc0 sequence for DSPen
  cifs: Fix the target file was deleted when rename failed.
  SMB3: Honor persistent/resilient handle flags for multiuser mounts
  SMB3: Honor 'seal' flag for multiuser mounts
  Revert "ALSA: usb-audio: Improve frames size computation"
  nfsd: apply umask on fs without ACL support
  i2c: algo-pca: Add 0x78 as SCL stuck low status for PCA9665
  virtio-blk: free vblk-vqs in error path of virtblk_probe()
  drm: sun4i: hdmi: Remove extra HPD polling
  hwmon: (acpi_power_meter) Fix potential memory leak in acpi_power_meter_add()
  hwmon: (max6697) Make sure the OVERT mask is set correctly
  cxgb4: parse TC-U32 key values and masks natively
  cxgb4: use unaligned conversion for fetching timestamp
  crypto: af_alg - fix use-after-free in af_alg_accept() due to bh_lock_sock()
  kgdb: Avoid suspicious RCU usage warning
  usb: usbtest: fix missing kfree(dev->buf) in usbtest_disconnect
  mm/slub: fix stack overruns with SLUB_STATS
  mm/slub.c: fix corrupted freechain in deactivate_slab()
  usbnet: smsc95xx: Fix use-after-free after removal
  EDAC/amd64: Read back the scrub rate PCI register on F15h
  mm: fix swap cache node allocation mask
  btrfs: fix data block group relocation failure due to concurrent scrub
  btrfs: cow_file_range() num_bytes and disk_num_bytes are same
  btrfs: fix a block group ref counter leak after failure to remove block group
  UPSTREAM: binder: fix null deref of proc->context
  ANDROID: GKI: scripts: Makefile: update the lz4 command (#2)
  Linux 4.14.187
  Revert "tty: hvc: Fix data abort due to race in hvc_open"
  xfs: add agf freeblocks verify in xfs_agf_verify
  NFSv4 fix CLOSE not waiting for direct IO compeletion
  pNFS/flexfiles: Fix list corruption if the mirror count changes
  SUNRPC: Properly set the @subbuf parameter of xdr_buf_subsegment()
  sunrpc: fixed rollback in rpc_gssd_dummy_populate()
  Staging: rtl8723bs: prevent buffer overflow in update_sta_support_rate()
  drm/radeon: fix fb_div check in ni_init_smc_spll_table()
  tracing: Fix event trigger to accept redundant spaces
  arm64: perf: Report the PC value in REGS_ABI_32 mode
  ocfs2: fix panic on nfs server over ocfs2
  ocfs2: fix value of OCFS2_INVALID_SLOT
  ocfs2: load global_inode_alloc
  mm/slab: use memzero_explicit() in kzfree()
  btrfs: fix failure of RWF_NOWAIT write into prealloc extent beyond eof
  KVM: nVMX: Plumb L2 GPA through to PML emulation
  KVM: X86: Fix MSR range of APIC registers in X2APIC mode
  ACPI: sysfs: Fix pm_profile_attr type
  ALSA: hda: Add NVIDIA codec IDs 9a & 9d through a0 to patch table
  blktrace: break out of blktrace setup on concurrent calls
  kbuild: improve cc-option to clean up all temporary files
  s390/ptrace: fix setting syscall number
  net: alx: fix race condition in alx_remove
  ata/libata: Fix usage of page address by page_address in ata_scsi_mode_select_xlat function
  sched/core: Fix PI boosting between RT and DEADLINE tasks
  net: bcmgenet: use hardware padding of runt frames
  netfilter: ipset: fix unaligned atomic access
  usb: gadget: udc: Potential Oops in error handling code
  ARM: imx5: add missing put_device() call in imx_suspend_alloc_ocram()
  net: qed: fix excessive QM ILT lines consumption
  net: qed: fix NVMe login fails over VFs
  net: qed: fix left elements count calculation
  RDMA/mad: Fix possible memory leak in ib_mad_post_receive_mads()
  ASoC: rockchip: Fix a reference count leak.
  RDMA/cma: Protect bind_list and listen_list while finding matching cm id
  rxrpc: Fix handling of rwind from an ACK packet
  ARM: dts: NSP: Correct FA2 mailbox node
  efi/esrt: Fix reference count leak in esre_create_sysfs_entry.
  cifs/smb3: Fix data inconsistent when zero file range
  cifs/smb3: Fix data inconsistent when punch hole
  xhci: Poll for U0 after disabling USB2 LPM
  ALSA: usb-audio: Fix OOB access of mixer element list
  ALSA: usb-audio: Clean up mixer element list traverse
  ALSA: usb-audio: uac1: Invalidate ctl on interrupt
  loop: replace kill_bdev with invalidate_bdev
  cdc-acm: Add DISABLE_ECHO quirk for Microchip/SMSC chip
  xhci: Fix enumeration issue when setting max packet size for FS devices.
  xhci: Fix incorrect EP_STATE_MASK
  ALSA: usb-audio: add quirk for Denon DCD-1500RE
  usb: host: ehci-exynos: Fix error check in exynos_ehci_probe()
  usb: host: xhci-mtk: avoid runtime suspend when removing hcd
  USB: ehci: reopen solution for Synopsys HC bug
  usb: add USB_QUIRK_DELAY_INIT for Logitech C922
  usb: dwc2: Postponed gadget registration to the udc class driver
  USB: ohci-sm501: Add missed iounmap() in remove
  net: core: reduce recursion limit value
  net: Do not clear the sock TX queue in sk_set_socket()
  net: Fix the arp error in some cases
  ip6_gre: fix use-after-free in ip6gre_tunnel_lookup()
  tcp_cubic: fix spurious HYSTART_DELAY exit upon drop in min RTT
  ip_tunnel: fix use-after-free in ip_tunnel_lookup()
  tg3: driver sleeps indefinitely when EEH errors exceed eeh_max_freezes
  tcp: grow window for OOO packets only for SACK flows
  sctp: Don't advertise IPv4 addresses if ipv6only is set on the socket
  rxrpc: Fix notification call on completion of discarded calls
  rocker: fix incorrect error handling in dma_rings_init
  net: usb: ax88179_178a: fix packet alignment padding
  net: fix memleak in register_netdevice()
  net: bridge: enfore alignment for ethernet address
  mld: fix memory leak in ipv6_mc_destroy_dev()
  ibmveth: Fix max MTU limit
  apparmor: don't try to replace stale label in ptraceme check
  fix a braino in "sparc32: fix register window handling in genregs32_[gs]et()"
  net: sched: export __netdev_watchdog_up()
  block/bio-integrity: don't free 'buf' if bio_integrity_add_page() failed
  net: be more gentle about silly gso requests coming from user
  scsi: scsi_devinfo: handle non-terminated strings
  ANDROID: Makefile: append BUILD_NUMBER to version string when defined
  Linux 4.14.186
  KVM: x86/mmu: Set mmio_value to '0' if reserved #PF can't be generated
  kvm: x86: Fix reserved bits related calculation errors caused by MKTME
  kvm: x86: Move kvm_set_mmio_spte_mask() from x86.c to mmu.c
  md: add feature flag MD_FEATURE_RAID0_LAYOUT
  net: core: device_rename: Use rwsem instead of a seqcount
  sched/rt, net: Use CONFIG_PREEMPTION.patch
  kretprobe: Prevent triggering kretprobe from within kprobe_flush_task
  e1000e: Do not wake up the system via WOL if device wakeup is disabled
  kprobes: Fix to protect kick_kprobe_optimizer() by kprobe_mutex
  crypto: algboss - don't wait during notifier callback
  crypto: algif_skcipher - Cap recv SG list at ctx->used
  mtd: rawnand: tmio: Fix the probe error path
  mtd: rawnand: mtk: Fix the probe error path
  mtd: rawnand: plat_nand: Fix the probe error path
  mtd: rawnand: socrates: Fix the probe error path
  mtd: rawnand: oxnas: Fix the probe error path
  mtd: rawnand: oxnas: Add of_node_put()
  mtd: rawnand: orion: Fix the probe error path
  mtd: rawnand: xway: Fix the probe error path
  mtd: rawnand: sharpsl: Fix the probe error path
  mtd: rawnand: diskonchip: Fix the probe error path
  mtd: rawnand: Pass a nand_chip object to nand_release()
  block: nr_sects_write(): Disable preemption on seqcount write
  x86/boot/compressed: Relax sed symbol type regex for LLVM ld.lld
  drm/dp_mst: Increase ACT retry timeout to 3s
  ext4: fix partial cluster initialization when splitting extent
  selinux: fix double free
  drm/qxl: Use correct notify port address when creating cursor ring
  drm/dp_mst: Reformat drm_dp_check_act_status() a bit
  drm: encoder_slave: fix refcouting error for modules
  libata: Use per port sync for detach
  arm64: hw_breakpoint: Don't invoke overflow handler on uaccess watchpoints
  block: Fix use-after-free in blkdev_get()
  bcache: fix potential deadlock problem in btree_gc_coalesce
  perf report: Fix NULL pointer dereference in hists__fprintf_nr_sample_events()
  usb/ehci-platform: Set PM runtime as active on resume
  usb/xhci-plat: Set PM runtime as active on resume
  scsi: acornscsi: Fix an error handling path in acornscsi_probe()
  drm/sun4i: hdmi ddc clk: Fix size of m divider
  selftests/net: in timestamping, strncpy needs to preserve null byte
  gfs2: fix use-after-free on transaction ail lists
  blktrace: fix endianness for blk_log_remap()
  blktrace: fix endianness in get_pdu_int()
  blktrace: use errno instead of bi_status
  selftests/vm/pkeys: fix alloc_random_pkey() to make it really random
  elfnote: mark all .note sections SHF_ALLOC
  include/linux/bitops.h: avoid clang shift-count-overflow warnings
  lib/zlib: remove outdated and incorrect pre-increment optimization
  geneve: change from tx_error to tx_dropped on missing metadata
  crypto: omap-sham - add proper load balancing support for multicore
  pinctrl: freescale: imx: Fix an error handling path in 'imx_pinctrl_probe()'
  pinctrl: imxl: Fix an error handling path in 'imx1_pinctrl_core_probe()'
  scsi: ufs: Don't update urgent bkops level when toggling auto bkops
  scsi: iscsi: Fix reference count leak in iscsi_boot_create_kobj
  gfs2: Allow lock_nolock mount to specify jid=X
  openrisc: Fix issue with argument clobbering for clone/fork
  vfio/mdev: Fix reference count leak in add_mdev_supported_type
  ASoC: fsl_asrc_dma: Fix dma_chan leak when config DMA channel failed
  extcon: adc-jack: Fix an error handling path in 'adc_jack_probe()'
  powerpc/4xx: Don't unmap NULL mbase
  NFSv4.1 fix rpc_call_done assignment for BIND_CONN_TO_SESSION
  net: sunrpc: Fix off-by-one issues in 'rpc_ntop6'
  scsi: ufs-qcom: Fix scheduling while atomic issue
  clk: bcm2835: Fix return type of bcm2835_register_gate
  x86/apic: Make TSC deadline timer detection message visible
  usb: gadget: Fix issue with config_ep_by_speed function
  usb: gadget: fix potential double-free in m66592_probe.
  usb: gadget: lpc32xx_udc: don't dereference ep pointer before null check
  USB: gadget: udc: s3c2410_udc: Remove pointless NULL check in s3c2410_udc_nuke
  usb: dwc2: gadget: move gadget resume after the core is in L0 state
  watchdog: da9062: No need to ping manually before setting timeout
  IB/cma: Fix ports memory leak in cma_configfs
  PCI/PTM: Inherit Switch Downstream Port PTM settings from Upstream Port
  dm zoned: return NULL if dmz_get_zone_for_reclaim() fails to find a zone
  powerpc/64s/pgtable: fix an undefined behaviour
  clk: samsung: exynos5433: Add IGNORE_UNUSED flag to sclk_i2s1
  tty: n_gsm: Fix bogus i++ in gsm_data_kick
  USB: host: ehci-mxc: Add error handling in ehci_mxc_drv_probe()
  drm/msm/mdp5: Fix mdp5_init error path for failed mdp5_kms allocation
  usb/ohci-platform: Fix a warning when hibernating
  vfio-pci: Mask cap zero
  powerpc/ps3: Fix kexec shutdown hang
  powerpc/pseries/ras: Fix FWNMI_VALID off by one
  tty: n_gsm: Fix waking up upper tty layer when room available
  tty: n_gsm: Fix SOF skipping
  PCI: Fix pci_register_host_bridge() device_register() error handling
  clk: ti: composite: fix memory leak
  dlm: remove BUG() before panic()
  scsi: mpt3sas: Fix double free warnings
  power: supply: smb347-charger: IRQSTAT_D is volatile
  power: supply: lp8788: Fix an error handling path in 'lp8788_charger_probe()'
  scsi: qla2xxx: Fix warning after FC target reset
  PCI/ASPM: Allow ASPM on links to PCIe-to-PCI/PCI-X Bridges
  PCI: rcar: Fix incorrect programming of OB windows
  drivers: base: Fix NULL pointer exception in __platform_driver_probe() if a driver developer is foolish
  serial: amba-pl011: Make sure we initialize the port.lock spinlock
  i2c: pxa: fix i2c_pxa_scream_blue_murder() debug output
  staging: sm750fb: add missing case while setting FB_VISUAL
  thermal/drivers/ti-soc-thermal: Avoid dereferencing ERR_PTR
  tty: hvc: Fix data abort due to race in hvc_open
  s390/qdio: put thinint indicator after early error
  ALSA: usb-audio: Improve frames size computation
  scsi: qedi: Do not flush offload work if ARP not resolved
  staging: greybus: fix a missing-check bug in gb_lights_light_config()
  scsi: ibmvscsi: Don't send host info in adapter info MAD after LPM
  scsi: sr: Fix sr_probe() missing deallocate of device minor
  apparmor: fix introspection of of task mode for unconfined tasks
  mksysmap: Fix the mismatch of '.L' symbols in System.map
  NTB: Fix the default port and peer numbers for legacy drivers
  yam: fix possible memory leak in yam_init_driver
  powerpc/crashkernel: Take "mem=" option into account
  nfsd: Fix svc_xprt refcnt leak when setup callback client failed
  powerpc/perf/hv-24x7: Fix inconsistent output values incase multiple hv-24x7 events run
  clk: clk-flexgen: fix clock-critical handling
  scsi: lpfc: Fix lpfc_nodelist leak when processing unsolicited event
  mfd: wm8994: Fix driver operation if loaded as modules
  m68k/PCI: Fix a memory leak in an error handling path
  vfio/pci: fix memory leaks in alloc_perm_bits()
  ps3disk: use the default segment boundary
  PCI: aardvark: Don't blindly enable ASPM L0s and don't write to read-only register
  dm mpath: switch paths in dm_blk_ioctl() code path
  usblp: poison URBs upon disconnect
  i2c: pxa: clear all master action bits in i2c_pxa_stop_message()
  f2fs: report delalloc reserve as non-free in statfs for project quota
  iio: bmp280: fix compensation of humidity
  scsi: qla2xxx: Fix issue with adapter's stopping state
  ALSA: isa/wavefront: prevent out of bounds write in ioctl
  scsi: qedi: Check for buffer overflow in qedi_set_path()
  ARM: integrator: Add some Kconfig selections
  ASoC: davinci-mcasp: Fix dma_chan refcnt leak when getting dma type
  backlight: lp855x: Ensure regulators are disabled on probe failure
  clk: qcom: msm8916: Fix the address location of pll->config_reg
  remoteproc: Fix IDR initialisation in rproc_alloc()
  iio: pressure: bmp280: Tolerate IRQ before registering
  i2c: piix4: Detect secondary SMBus controller on AMD AM4 chipsets
  clk: sunxi: Fix incorrect usage of round_down()
  power: supply: bq24257_charger: Replace depends on REGMAP_I2C with select
  drm/i915: Whitelist context-local timestamp in the gen9 cmdparser
  s390: fix syscall_get_error for compat processes
  ANDROID: ext4: Optimize match for casefolded encrypted dirs
  ANDROID: ext4: Handle casefolding with encryption
  ANDROID: cuttlefish_defconfig: x86: Enable KERNEL_LZ4
  ANDROID: GKI: scripts: Makefile: update the lz4 command
  FROMLIST: f2fs: fix use-after-free when accessing bio->bi_crypt_context
  Linux 4.14.185
  perf symbols: Fix debuginfo search for Ubuntu
  perf probe: Fix to check blacklist address correctly
  perf probe: Do not show the skipped events
  w1: omap-hdq: cleanup to add missing newline for some dev_dbg
  mtd: rawnand: pasemi: Fix the probe error path
  mtd: rawnand: brcmnand: fix hamming oob layout
  sunrpc: clean up properly in gss_mech_unregister()
  sunrpc: svcauth_gss_register_pseudoflavor must reject duplicate registrations.
  kbuild: force to build vmlinux if CONFIG_MODVERSION=y
  powerpc/64s: Save FSCR to init_task.thread.fscr after feature init
  powerpc/64s: Don't let DT CPU features set FSCR_DSCR
  drivers/macintosh: Fix memleak in windfarm_pm112 driver
  ARM: tegra: Correct PL310 Auxiliary Control Register initialization
  kernel/cpu_pm: Fix uninitted local in cpu_pm
  dm crypt: avoid truncating the logical block size
  sparc64: fix misuses of access_process_vm() in genregs32_[sg]et()
  sparc32: fix register window handling in genregs32_[gs]et()
  pinctrl: samsung: Save/restore eint_mask over suspend for EINT_TYPE GPIOs
  power: vexpress: add suppress_bind_attrs to true
  igb: Report speed and duplex as unknown when device is runtime suspended
  media: ov5640: fix use of destroyed mutex
  b43_legacy: Fix connection problem with WPA3
  b43: Fix connection problem with WPA3
  b43legacy: Fix case where channel status is corrupted
  media: go7007: fix a miss of snd_card_free
  carl9170: remove P2P_GO support
  e1000e: Relax condition to trigger reset for ME workaround
  e1000e: Disable TSO for buffer overrun workaround
  PCI: Program MPS for RCiEP devices
  blk-mq: move _blk_mq_update_nr_hw_queues synchronize_rcu call
  btrfs: fix wrong file range cleanup after an error filling dealloc range
  btrfs: fix error handling when submitting direct I/O bio
  PCI: Unify ACS quirk desired vs provided checking
  PCI: Add ACS quirk for Intel Root Complex Integrated Endpoints
  PCI: Generalize multi-function power dependency device links
  vga_switcheroo: Use device link for HDA controller
  vga_switcheroo: Deduplicate power state tracking
  PCI: Make ACS quirk implementations more uniform
  PCI: Add ACS quirk for Ampere root ports
  PCI: Add ACS quirk for iProc PAXB
  PCI: Avoid FLR for AMD Starship USB 3.0
  PCI: Avoid FLR for AMD Matisse HD Audio & USB 3.0
  PCI: Disable MSI for Freescale Layerscape PCIe RC mode
  ext4: fix race between ext4_sync_parent() and rename()
  ext4: fix error pointer dereference
  ext4: fix EXT_MAX_EXTENT/INDEX to check for zeroed eh_max
  evm: Fix possible memory leak in evm_calc_hmac_or_hash()
  ima: Directly assign the ima_default_policy pointer to ima_rules
  ima: Fix ima digest hash table key calculation
  mm: thp: make the THP mapcount atomic against __split_huge_pmd_locked()
  btrfs: send: emit file capabilities after chown
  string.h: fix incompatibility between FORTIFY_SOURCE and KASAN
  platform/x86: hp-wmi: Convert simple_strtoul() to kstrtou32()
  cpuidle: Fix three reference count leaks
  spi: dw: Return any value retrieved from the dma_transfer callback
  mmc: sdhci-esdhc-imx: fix the mask for tuning start point
  ixgbe: fix signed-integer-overflow warning
  mmc: via-sdmmc: Respect the cmd->busy_timeout from the mmc core
  staging: greybus: sdio: Respect the cmd->busy_timeout from the mmc core
  mmc: sdhci-msm: Set SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12 quirk
  MIPS: Fix IRQ tracing when call handle_fpe() and handle_msa_fpe()
  PCI: Don't disable decoding when mmio_always_on is set
  macvlan: Skip loopback packets in RX handler
  m68k: mac: Don't call via_flush_cache() on Mac IIfx
  x86/mm: Stop printing BRK addresses
  mips: Add udelay lpj numbers adjustment
  mips: MAAR: Use more precise address mask
  x86/boot: Correct relocation destination on old linkers
  mwifiex: Fix memory corruption in dump_station
  rtlwifi: Fix a double free in _rtl_usb_tx_urb_setup()
  md: don't flush workqueue unconditionally in md_open
  net: qed*: Reduce RX and TX default ring count when running inside kdump kernel
  wcn36xx: Fix error handling path in 'wcn36xx_probe()'
  nvme: refine the Qemu Identify CNS quirk
  kgdb: Fix spurious true from in_dbg_master()
  mips: cm: Fix an invalid error code of INTVN_*_ERR
  MIPS: Truncate link address into 32bit for 32bit kernel
  Crypto/chcr: fix for ccm(aes) failed test
  powerpc/spufs: fix copy_to_user while atomic
  net: allwinner: Fix use correct return type for ndo_start_xmit()
  media: cec: silence shift wrapping warning in __cec_s_log_addrs()
  net: lpc-enet: fix error return code in lpc_mii_init()
  exit: Move preemption fixup up, move blocking operations down
  lib/mpi: Fix 64-bit MIPS build with Clang
  net: bcmgenet: set Rx mode before starting netif
  netfilter: nft_nat: return EOPNOTSUPP if type or flags are not supported
  audit: fix a net reference leak in audit_list_rules_send()
  MIPS: Make sparse_init() using top-down allocation
  media: platform: fcp: Set appropriate DMA parameters
  media: dvb: return -EREMOTEIO on i2c transfer failure.
  audit: fix a net reference leak in audit_send_reply()
  dt-bindings: display: mediatek: control dpi pins mode to avoid leakage
  e1000: Distribute switch variables for initialization
  tools api fs: Make xxx__mountpoint() more scalable
  brcmfmac: fix wrong location to get firmware feature
  staging: android: ion: use vmap instead of vm_map_ram
  net: vmxnet3: fix possible buffer overflow caused by bad DMA value in vmxnet3_get_rss()
  x86/kvm/hyper-v: Explicitly align hcall param for kvm_hyperv_exit
  spi: dw: Fix Rx-only DMA transfers
  ARM: 8978/1: mm: make act_mm() respect THREAD_SIZE
  btrfs: do not ignore error from btrfs_next_leaf() when inserting checksums
  clocksource: dw_apb_timer_of: Fix missing clockevent timers
  clocksource: dw_apb_timer: Make CPU-affiliation being optional
  spi: dw: Enable interrupts in accordance with DMA xfer mode
  kgdb: Prevent infinite recursive entries to the debugger
  Bluetooth: Add SCO fallback for invalid LMP parameters error
  MIPS: Loongson: Build ATI Radeon GPU driver as module
  ixgbe: Fix XDP redirect on archs with PAGE_SIZE above 4K
  spi: dw: Zero DMA Tx and Rx configurations on stack
  net: ena: fix error returning in ena_com_get_hash_function()
  spi: pxa2xx: Apply CS clk quirk to BXT
  objtool: Ignore empty alternatives
  media: si2157: Better check for running tuner in init
  crypto: ccp -- don't "select" CONFIG_DMADEVICES
  drm: bridge: adv7511: Extend list of audio sample rates
  ACPI: GED: use correct trigger type field in _Exx / _Lxx handling
  xen/pvcalls-back: test for errors when calling backend_connect()
  can: kvaser_usb: kvaser_usb_leaf: Fix some info-leaks to USB devices
  mmc: sdio: Fix potential NULL pointer error in mmc_sdio_init_card()
  mmc: sdhci-msm: Clear tuning done flag while hs400 tuning
  agp/intel: Reinforce the barrier after GTT updates
  perf: Add cond_resched() to task_function_call()
  fat: don't allow to mount if the FAT length == 0
  mm/slub: fix a memory leak in sysfs_slab_add()
  Smack: slab-out-of-bounds in vsscanf
  ath9k: Fix general protection fault in ath9k_hif_usb_rx_cb
  ath9x: Fix stack-out-of-bounds Write in ath9k_hif_usb_rx_cb
  ath9k: Fix use-after-free Write in ath9k_htc_rx_msg
  ath9k: Fix use-after-free Read in ath9k_wmi_ctrl_rx
  KVM: arm64: Make vcpu_cp1x() work on Big Endian hosts
  KVM: MIPS: Fix VPN2_MASK definition for variable cpu_vmbits
  KVM: MIPS: Define KVM_ENTRYHI_ASID to cpu_asid_mask(&boot_cpu_data)
  KVM: nVMX: Consult only the "basic" exit reason when routing nested exit
  KVM: nSVM: leave ASID aside in copy_vmcb_control_area
  KVM: nSVM: fix condition for filtering async PF
  video: fbdev: w100fb: Fix a potential double free.
  proc: Use new_inode not new_inode_pseudo
  ovl: initialize error in ovl_copy_xattr
  selftests/net: in rxtimestamp getopt_long needs terminating null entry
  crypto: virtio: Fix dest length calculation in __virtio_crypto_skcipher_do_req()
  crypto: virtio: Fix src/dst scatterlist calculation in __virtio_crypto_skcipher_do_req()
  crypto: virtio: Fix use-after-free in virtio_crypto_skcipher_finalize_req()
  spi: bcm2835: Fix controller unregister order
  spi: pxa2xx: Fix controller unregister order
  spi: Fix controller unregister order
  spi: No need to assign dummy value in spi_unregister_controller()
  spi: dw: Fix controller unregister order
  spi: dw: fix possible race condition
  x86/speculation: PR_SPEC_FORCE_DISABLE enforcement for indirect branches.
  x86/speculation: Avoid force-disabling IBPB based on STIBP and enhanced IBRS.
  x86/speculation: Add support for STIBP always-on preferred mode
  x86/speculation: Change misspelled STIPB to STIBP
  KVM: x86: only do L1TF workaround on affected processors
  KVM: x86/mmu: Consolidate "is MMIO SPTE" code
  kvm: x86: Fix L1TF mitigation for shadow MMU
  ALSA: pcm: disallow linking stream to itself
  crypto: cavium/nitrox - Fix 'nitrox_get_first_device()' when ndevlist is fully iterated
  spi: bcm-qspi: when tx/rx buffer is NULL set to 0
  spi: bcm2835aux: Fix controller unregister order
  nilfs2: fix null pointer dereference at nilfs_segctor_do_construct()
  cgroup, blkcg: Prepare some symbols for module and !CONFIG_CGROUP usages
  ACPI: PM: Avoid using power resources if there are none for D0
  ACPI: GED: add support for _Exx / _Lxx handler methods
  ACPI: CPPC: Fix reference count leak in acpi_cppc_processor_probe()
  ACPI: sysfs: Fix reference count leak in acpi_sysfs_add_hotplug_profile()
  ALSA: usb-audio: Fix inconsistent card PM state after resume
  ALSA: hda/realtek - add a pintbl quirk for several Lenovo machines
  ALSA: es1688: Add the missed snd_card_free()
  efi/efivars: Add missing kobject_put() in sysfs entry creation error path
  x86/reboot/quirks: Add MacBook6,1 reboot quirk
  x86/speculation: Prevent rogue cross-process SSBD shutdown
  x86/PCI: Mark Intel C620 MROMs as having non-compliant BARs
  x86_64: Fix jiffies ODR violation
  mm: add kvfree_sensitive() for freeing sensitive data objects
  perf probe: Accept the instance number of kretprobe event
  ath9k_htc: Silence undersized packet warnings
  powerpc/xive: Clear the page tables for the ESB IO mapping
  drivers/net/ibmvnic: Update VNIC protocol version reporting
  Input: synaptics - add a second working PNP_ID for Lenovo T470s
  sched/fair: Don't NUMA balance for kthreads
  ARM: 8977/1: ptrace: Fix mask for thumb breakpoint hook
  crypto: talitos - fix ECB and CBC algs ivsize
  serial: imx: Fix handling of TC irq in combination with DMA
  lib: Reduce user_access_begin() boundaries in strncpy_from_user() and strnlen_user()
  x86: uaccess: Inhibit speculation past access_ok() in user_access_begin()
  arch/openrisc: Fix issues with access_ok()
  Fix 'acccess_ok()' on alpha and SH
  make 'user_access_begin()' do 'access_ok()'
  vxlan: Avoid infinite loop when suppressing NS messages with invalid options
  ipv6: fix IPV6_ADDRFORM operation logic
  writeback: Drop I_DIRTY_TIME_EXPIRE
  writeback: Fix sync livelock due to b_dirty_time processing
  writeback: Avoid skipping inode writeback
  writeback: Protect inode->i_io_list with inode->i_lock
  Revert "writeback: Avoid skipping inode writeback"
  ANDROID: Enable LZ4_RAMDISK
  fscrypt: remove stale definition
  fs-verity: remove unnecessary extern keywords
  fs-verity: fix all kerneldoc warnings
  fscrypt: add support for IV_INO_LBLK_32 policies
  fscrypt: make test_dummy_encryption use v2 by default
  fscrypt: support test_dummy_encryption=v2
  fscrypt: add fscrypt_add_test_dummy_key()
  linux/parser.h: add include guards
  fscrypt: remove unnecessary extern keywords
  fscrypt: name all function parameters
  fscrypt: fix all kerneldoc warnings
  ANDROID: kbuild: merge more sections with LTO
  Linux 4.14.184
  uprobes: ensure that uprobe->offset and ->ref_ctr_offset are properly aligned
  iio: vcnl4000: Fix i2c swapped word reading.
  x86/speculation: Add Ivy Bridge to affected list
  x86/speculation: Add SRBDS vulnerability and mitigation documentation
  x86/speculation: Add Special Register Buffer Data Sampling (SRBDS) mitigation
  x86/cpu: Add 'table' argument to cpu_matches()
  x86/cpu: Add a steppings field to struct x86_cpu_id
  nvmem: qfprom: remove incorrect write support
  CDC-ACM: heed quirk also in error handling
  staging: rtl8712: Fix IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK
  tty: hvc_console, fix crashes on parallel open/close
  vt: keyboard: avoid signed integer overflow in k_ascii
  usb: musb: Fix runtime PM imbalance on error
  usb: musb: start session in resume for host port
  USB: serial: option: add Telit LE910C1-EUX compositions
  USB: serial: usb_wwan: do not resubmit rx urb on fatal errors
  USB: serial: qcserial: add DW5816e QDL support
  l2tp: add sk_family checks to l2tp_validate_socket
  net: check untrusted gso_size at kernel entry
  vsock: fix timeout in vsock_accept()
  NFC: st21nfca: add missed kfree_skb() in an error path
  net: usb: qmi_wwan: add Telit LE910C1-EUX composition
  l2tp: do not use inet_hash()/inet_unhash()
  devinet: fix memleak in inetdev_init()
  airo: Fix read overflows sending packets
  scsi: ufs: Release clock if DMA map fails
  mmc: fix compilation of user API
  kernel/relay.c: handle alloc_percpu returning NULL in relay_open
  p54usb: add AirVasT USB stick device-id
  HID: i2c-hid: add Schneider SCL142ALM to descriptor override
  HID: sony: Fix for broken buttons on DS3 USB dongles
  mm: Fix mremap not considering huge pmd devmap
  net: smsc911x: Fix runtime PM imbalance on error
  net: ethernet: stmmac: Enable interface clocks on probe for IPQ806x
  net/ethernet/freescale: rework quiesce/activate for ucc_geth
  net: bmac: Fix read of MAC address from ROM
  x86/mmiotrace: Use cpumask_available() for cpumask_var_t variables
  i2c: altera: Fix race between xfer_msg and isr thread
  ARC: [plat-eznps]: Restrict to CONFIG_ISA_ARCOMPACT
  ARC: Fix ICCM & DCCM runtime size checks
  pppoe: only process PADT targeted at local interfaces
  s390/ftrace: save traced function caller
  spi: dw: use "smp_mb()" to avoid sending spi data error
  scsi: hisi_sas: Check sas_port before using it
  libnvdimm: Fix endian conversion issues 
  scsi: scsi_devinfo: fixup string compare
  ANDROID: Incremental fs: Remove dependency on PKCS7_MESSAGE_PARSER
  f2fs: attach IO flags to the missing cases
  f2fs: add node_io_flag for bio flags likewise data_io_flag
  f2fs: remove unused parameter of f2fs_put_rpages_mapping()
  f2fs: handle readonly filesystem in f2fs_ioc_shutdown()
  f2fs: avoid utf8_strncasecmp() with unstable name
  f2fs: don't return vmalloc() memory from f2fs_kmalloc()
  ANDROID: dm-bow: Add block_size option
  ANDROID: Incremental fs: Cache successful hash calculations
  ANDROID: Incremental fs: Fix four error-path bugs
  ANDROID: cuttlefish_defconfig: Disable CMOS RTC driver
  f2fs: fix retry logic in f2fs_write_cache_pages()
  ANDROID: modules: fix lockprove warning
  BACKPORT: arm64: vdso: Explicitly add build-id option
  BACKPORT: arm64: vdso: use $(LD) instead of $(CC) to link VDSO
  Linux 4.14.183
  scsi: zfcp: fix request object use-after-free in send path causing wrong traces
  genirq/generic_pending: Do not lose pending affinity update
  net: hns: Fixes the missing put_device in positive leg for roce reset
  net: hns: fix unsigned comparison to less than zero
  KVM: VMX: check for existence of secondary exec controls before accessing
  rxrpc: Fix transport sockopts to get IPv4 errors on an IPv6 socket
  sc16is7xx: move label 'err_spi' to correct section
  mm/vmalloc.c: don't dereference possible NULL pointer in __vunmap()
  netfilter: nf_conntrack_pptp: fix compilation warning with W=1 build
  bonding: Fix reference count leak in bond_sysfs_slave_add.
  qlcnic: fix missing release in qlcnic_83xx_interrupt_test.
  esp6: get the right proto for transport mode in esp6_gso_encap
  netfilter: nf_conntrack_pptp: prevent buffer overflows in debug code
  netfilter: nfnetlink_cthelper: unbreak userspace helper support
  netfilter: ipset: Fix subcounter update skip
  netfilter: nft_reject_bridge: enable reject with bridge vlan
  ip_vti: receive ipip packet by calling ip_tunnel_rcv
  vti4: eliminated some duplicate code.
  xfrm: fix error in comment
  xfrm: fix a NULL-ptr deref in xfrm_local_error
  xfrm: fix a warning in xfrm_policy_insert_list
  xfrm: call xfrm_output_gso when inner_protocol is set in xfrm_output
  xfrm: allow to accept packets with ipv6 NEXTHDR_HOP in xfrm_input
  copy_xstate_to_kernel(): don't leave parts of destination uninitialized
  x86/dma: Fix max PFN arithmetic overflow on 32 bit systems
  mac80211: mesh: fix discovery timer re-arming issue / crash
  parisc: Fix kernel panic in mem_init()
  iommu: Fix reference count leak in iommu_group_alloc.
  include/asm-generic/topology.h: guard cpumask_of_node() macro argument
  fs/binfmt_elf.c: allocate initialized memory in fill_thread_core_info()
  mm: remove VM_BUG_ON(PageSlab()) from page_mapcount()
  libceph: ignore pool overlay and cache logic on redirects
  ALSA: hda/realtek - Add new codec supported for ALC287
  exec: Always set cap_ambient in cap_bprm_set_creds
  ALSA: usb-audio: mixer: volume quirk for ESS Technology Asus USB DAC
  ALSA: hwdep: fix a left shifting 1 by 31 UB bug
  RDMA/pvrdma: Fix missing pci disable in pvrdma_pci_probe()
  mmc: block: Fix use-after-free issue for rpmb
  ARM: dts: bcm2835-rpi-zero-w: Fix led polarity
  ARM: dts/imx6q-bx50v3: Set display interface clock parents
  ARM: dts: imx6q-bx50v3: Add internal switch
  IB/qib: Call kobject_put() when kobject_init_and_add() fails
  gpio: exar: Fix bad handling for ida_simple_get error path
  ARM: uaccess: fix DACR mismatch with nested exceptions
  ARM: uaccess: integrate uaccess_save and uaccess_restore
  ARM: uaccess: consolidate uaccess asm to asm/uaccess-asm.h
  ARM: 8843/1: use unified assembler in headers
  Input: synaptics-rmi4 - fix error return code in rmi_driver_probe()
  Input: synaptics-rmi4 - really fix attn_data use-after-free
  Input: i8042 - add ThinkPad S230u to i8042 reset list
  Input: dlink-dir685-touchkeys - fix a typo in driver name
  Input: xpad - add custom init packet for Xbox One S controllers
  Input: evdev - call input_flush_device() on release(), not flush()
  Input: usbtouchscreen - add support for BonXeon TP
  samples: bpf: Fix build error
  cifs: Fix null pointer check in cifs_read
  net: freescale: select CONFIG_FIXED_PHY where needed
  usb: gadget: legacy: fix redundant initialization warnings
  cachefiles: Fix race between read_waiter and read_copier involving op->to_do
  gfs2: move privileged user check to gfs2_quota_lock_check
  net: microchip: encx24j600: add missed kthread_stop
  gpio: tegra: mask GPIO IRQs during IRQ shutdown
  ARM: dts: rockchip: fix pinctrl sub nodename for spi in rk322x.dtsi
  arm64: dts: rockchip: swap interrupts interrupt-names rk3399 gpu node
  ARM: dts: rockchip: fix phy nodename for rk3228-evb
  net/mlx4_core: fix a memory leak bug.
  net: sun: fix missing release regions in cas_init_one().
  net: qrtr: Fix passing invalid reference to qrtr_local_enqueue()
  net/mlx5e: Update netdev txq on completions during closure
  sctp: Start shutdown on association restart if in SHUTDOWN-SENT state and socket is closed
  r8152: support additional Microsoft Surface Ethernet Adapter variant
  net sched: fix reporting the first-time use timestamp
  net: revert "net: get rid of an signed integer overflow in ip_idents_reserve()"
  net/mlx5: Add command entry handling completion
  net: ipip: fix wrong address family in init error path
  ax25: fix setsockopt(SO_BINDTODEVICE)
  ANDROID: scs: fix recursive spinlock in scs_check_usage
  ANDROID: timer: fix timer_setup with CFI
  FROMGIT: USB: dummy-hcd: use configurable endpoint naming scheme
  UPSTREAM: USB: dummy-hcd: remove unsupported isochronous endpoints
  UPSTREAM: usb: raw-gadget: fix null-ptr-deref when reenabling endpoints
  UPSTREAM: usb: raw-gadget: documentation updates
  UPSTREAM: usb: raw-gadget: support stalling/halting/wedging endpoints
  UPSTREAM: usb: raw-gadget: fix gadget endpoint selection
  UPSTREAM: usb: raw-gadget: improve uapi headers comments
  UPSTREAM: usb: raw-gadget: fix return value of ep read ioctls
  UPSTREAM: usb: raw-gadget: fix raw_event_queue_fetch locking
  UPSTREAM: usb: raw-gadget: Fix copy_to/from_user() checks
  f2fs: fix wrong discard space
  f2fs: compress: don't compress any datas after cp stop
  f2fs: remove unneeded return value of __insert_discard_tree()
  f2fs: fix wrong value of tracepoint parameter
  f2fs: protect new segment allocation in expand_inode_data
  f2fs: code cleanup by removing ifdef macro surrounding
  writeback: Avoid skipping inode writeback
  ANDROID: net: bpf: permit redirect from ingress L3 to egress L2 devices at near max mtu
  Revert "ANDROID: Incremental fs: Avoid continually recalculating hashes"
  Linux 4.14.182
  iio: adc: stm32-adc: fix device used to request dma
  iio: adc: stm32-adc: Use dma_request_chan() instead dma_request_slave_channel()
  x86/unwind/orc: Fix unwind_get_return_address_ptr() for inactive tasks
  rxrpc: Fix a memory leak in rxkad_verify_response()
  rapidio: fix an error in get_user_pages_fast() error handling
  mei: release me_cl object reference
  iio: dac: vf610: Fix an error handling path in 'vf610_dac_probe()'
  iio: sca3000: Remove an erroneous 'get_device()'
  staging: greybus: Fix uninitialized scalar variable
  staging: iio: ad2s1210: Fix SPI reading
  Revert "gfs2: Don't demote a glock until its revokes are written"
  cxgb4/cxgb4vf: Fix mac_hlist initialization and free
  cxgb4: free mac_hlist properly
  media: fdp1: Fix R-Car M3-N naming in debug message
  libnvdimm/btt: Fix LBA masking during 'free list' population
  libnvdimm/btt: Remove unnecessary code in btt_freelist_init
  ubsan: build ubsan.c more conservatively
  x86/uaccess, ubsan: Fix UBSAN vs. SMAP
  powerpc/64s: Disable STRICT_KERNEL_RWX
  powerpc: Remove STRICT_KERNEL_RWX incompatibility with RELOCATABLE
  powerpc: restore alphabetic order in Kconfig
  dmaengine: tegra210-adma: Fix an error handling path in 'tegra_adma_probe()'
  apparmor: Fix aa_label refcnt leak in policy_update
  ALSA: pcm: fix incorrect hw_base increase
  ALSA: iec1712: Initialize STDSP24 properly when using the model=staudio option
  l2tp: initialise PPP sessions before registering them
  l2tp: protect sock pointer of struct pppol2tp_session with RCU
  l2tp: initialise l2tp_eth sessions before registering them
  l2tp: don't register sessions in l2tp_session_create()
  arm64: fix the flush_icache_range arguments in machine_kexec
  padata: purge get_cpu and reorder_via_wq from padata_do_serial
  padata: initialize pd->cpu with effective cpumask
  padata: Replace delayed timer with immediate workqueue in padata_reorder
  padata: set cpu_index of unused CPUs to -1
  ARM: futex: Address build warning
  platform/x86: asus-nb-wmi: Do not load on Asus T100TA and T200TA
  USB: core: Fix misleading driver bug report
  ceph: fix double unlock in handle_cap_export()
  gtp: set NLM_F_MULTI flag in gtp_genl_dump_pdp()
  x86/apic: Move TSC deadline timer debug printk
  scsi: ibmvscsi: Fix WARN_ON during event pool release
  component: Silence bind error on -EPROBE_DEFER
  vhost/vsock: fix packet delivery order to monitoring devices
  configfs: fix config_item refcnt leak in configfs_rmdir()
  scsi: qla2xxx: Fix hang when issuing nvme disconnect-all in NPIV
  HID: multitouch: add eGalaxTouch P80H84 support
  gcc-common.h: Update for GCC 10
  ubi: Fix seq_file usage in detailed_erase_block_info debugfs file
  i2c: mux: demux-pinctrl: Fix an error handling path in 'i2c_demux_pinctrl_probe()'
  iommu/amd: Fix over-read of ACPI UID from IVRS table
  fix multiplication overflow in copy_fdtable()
  ima: Fix return value of ima_write_policy()
  evm: Check also if *tfm is an error pointer in init_desc()
  ima: Set file->f_mode instead of file->f_flags in ima_calc_file_hash()
  padata: ensure padata_do_serial() runs on the correct CPU
  padata: ensure the reorder timer callback runs on the correct CPU
  i2c: dev: Fix the race between the release of i2c_dev and cdev
  watchdog: Fix the race between the release of watchdog_core_data and cdev
  ext4: add cond_resched() to ext4_protect_reserved_inode
  ANDROID: scsi: ufs: Handle clocks when lrbp fails
  ANDROID: fscrypt: handle direct I/O with IV_INO_LBLK_32
  BACKPORT: FROMLIST: fscrypt: add support for IV_INO_LBLK_32 policies
  f2fs: avoid inifinite loop to wait for flushing node pages at cp_error
  ANDROID: namespace'ify tcp_default_init_rwnd implementation
  Linux 4.14.181
  Makefile: disallow data races on gcc-10 as well
  KVM: x86: Fix off-by-one error in kvm_vcpu_ioctl_x86_setup_mce
  ARM: dts: r8a7740: Add missing extal2 to CPG node
  ARM: dts: r8a73a4: Add missing CMT1 interrupts
  arm64: dts: rockchip: Rename dwc3 device nodes on rk3399 to make dtc happy
  arm64: dts: rockchip: Replace RK805 PMIC node name with "pmic" on rk3328 boards
  Revert "ALSA: hda/realtek: Fix pop noise on ALC225"
  usb: gadget: legacy: fix error return code in cdc_bind()
  usb: gadget: legacy: fix error return code in gncm_bind()
  usb: gadget: audio: Fix a missing error return value in audio_bind()
  usb: gadget: net2272: Fix a memory leak in an error handling path in 'net2272_plat_probe()'
  clk: rockchip: fix incorrect configuration of rk3228 aclk_gpu* clocks
  exec: Move would_dump into flush_old_exec
  x86/unwind/orc: Fix error handling in __unwind_start()
  usb: xhci: Fix NULL pointer dereference when enqueuing trbs from urb sg list
  USB: gadget: fix illegal array access in binding with UDC
  usb: host: xhci-plat: keep runtime active when removing host
  usb: core: hub: limit HUB_QUIRK_DISABLE_AUTOSUSPEND to USB5534B
  ALSA: usb-audio: Add control message quirk delay for Kingston HyperX headset
  x86: Fix early boot crash on gcc-10, third try
  ARM: dts: imx27-phytec-phycard-s-rdk: Fix the I2C1 pinctrl entries
  ARM: dts: dra7: Fix bus_dma_limit for PCIe
  ALSA: rawmidi: Fix racy buffer resize under concurrent accesses
  ALSA: rawmidi: Initialize allocated buffers
  ALSA: hda/realtek - Limit int mic boost for Thinkpad T530
  net: tcp: fix rx timestamp behavior for tcp_recvmsg
  netprio_cgroup: Fix unlimited memory leak of v2 cgroups
  net: ipv4: really enforce backoff for redirects
  net: dsa: loop: Add module soft dependency
  hinic: fix a bug of ndo_stop
  Revert "ipv6: add mtu lock check in __ip6_rt_update_pmtu"
  net: phy: fix aneg restart in phy_ethtool_set_eee
  netlabel: cope with NULL catmap
  net: fix a potential recursive NETDEV_FEAT_CHANGE
  net: phy: micrel: Use strlcpy() for ethtool::get_strings
  x86/asm: Add instruction suffixes to bitops
  gcc-10: avoid shadowing standard library 'free()' in crypto
  gcc-10: disable 'restrict' warning for now
  gcc-10: disable 'stringop-overflow' warning for now
  gcc-10: disable 'array-bounds' warning for now
  gcc-10: disable 'zero-length-bounds' warning for now
  Stop the ad-hoc games with -Wno-maybe-initialized
  kbuild: compute false-positive -Wmaybe-uninitialized cases in Kconfig
  gcc-10 warnings: fix low-hanging fruit
  pnp: Use list_for_each_entry() instead of open coding
  hwmon: (da9052) Synchronize access with mfd
  IB/mlx4: Test return value of calls to ib_get_cached_pkey
  netfilter: conntrack: avoid gcc-10 zero-length-bounds warning
  i40iw: Fix error handling in i40iw_manage_arp_cache()
  pinctrl: cherryview: Add missing spinlock usage in chv_gpio_irq_handler
  pinctrl: baytrail: Enable pin configuration setting for GPIO chip
  ipmi: Fix NULL pointer dereference in ssif_probe
  x86/entry/64: Fix unwind hints in register clearing code
  ALSA: hda/realtek - Fix S3 pop noise on Dell Wyse
  ipc/util.c: sysvipc_find_ipc() incorrectly updates position index
  drm/qxl: lost qxl_bo_kunmap_atomic_page in qxl_image_init_helper()
  ALSA: hda/hdmi: fix race in monitor detection during probe
  cpufreq: intel_pstate: Only mention the BIOS disabling turbo mode once
  dmaengine: mmp_tdma: Reset channel error on release
  dmaengine: pch_dma.c: Avoid data race between probe and irq handler
  scsi: sg: add sg_remove_request in sg_write
  virtio-blk: handle block_device_operations callbacks after hot unplug
  drop_monitor: work around gcc-10 stringop-overflow warning
  net: moxa: Fix a potential double 'free_irq()'
  net/sonic: Fix a resource leak in an error handling path in 'jazz_sonic_probe()'
  shmem: fix possible deadlocks on shmlock_user_lock
  net: stmmac: Use mutex instead of spinlock
  f2fs: fix to avoid memory leakage in f2fs_listxattr
  f2fs: fix to avoid accessing xattr across the boundary
  f2fs: sanity check of xattr entry size
  f2fs: introduce read_xattr_block
  f2fs: introduce read_inline_xattr
  blktrace: fix dereference after null check
  blktrace: Protect q->blk_trace with RCU
  blktrace: fix trace mutex deadlock
  blktrace: fix unlocked access to init/start-stop/teardown
  net: ipv6_stub: use ip6_dst_lookup_flow instead of ip6_dst_lookup
  net: ipv6: add net argument to ip6_dst_lookup_flow
  scripts/decodecode: fix trapping instruction formatting
  objtool: Fix stack offset tracking for indirect CFAs
  netfilter: nat: never update the UDP checksum when it's 0
  x86/unwind/orc: Fix error path for bad ORC entry type
  x86/unwind/orc: Prevent unwinding before ORC initialization
  x86/unwind/orc: Don't skip the first frame for inactive tasks
  x86/entry/64: Fix unwind hints in rewind_stack_do_exit()
  x86/entry/64: Fix unwind hints in kernel exit path
  batman-adv: Fix refcnt leak in batadv_v_ogm_process
  batman-adv: Fix refcnt leak in batadv_store_throughput_override
  batman-adv: Fix refcnt leak in batadv_show_throughput_override
  batman-adv: fix batadv_nc_random_weight_tq
  coredump: fix crash when umh is disabled
  mm/page_alloc: fix watchdog soft lockups during set_zone_contiguous()
  KVM: arm: vgic: Fix limit condition when writing to GICD_I[CS]ACTIVER
  tracing: Add a vmalloc_sync_mappings() for safe measure
  USB: serial: garmin_gps: add sanity checking for data length
  USB: uas: add quirk for LaCie 2Big Quadra
  HID: usbhid: Fix race between usbhid_close() and usbhid_stop()
  geneve: only configure or fill UDP_ZERO_CSUM6_RX/TX info when CONFIG_IPV6
  HID: wacom: Read HID_DG_CONTACTMAX directly for non-generic devices
  ipv6: fix cleanup ordering for ip6_mr failure
  net: stricter validation of untrusted gso packets
  bnxt_en: Fix VF anti-spoof filter setup.
  bnxt_en: Improve AER slot reset.
  net/mlx5: Fix command entry leak in Internal Error State
  net/mlx5: Fix forced completion access non initialized command entry
  bnxt_en: Fix VLAN acceleration handling in bnxt_fix_features().
  sch_sfq: validate silly quantum values
  sch_choke: avoid potential panic in choke_reset()
  net: usb: qmi_wwan: add support for DW5816e
  net/mlx4_core: Fix use of ENOSPC around mlx4_counter_alloc()
  net: macsec: preserve ingress frame ordering
  fq_codel: fix TCA_FQ_CODEL_DROP_BATCH_SIZE sanity checks
  dp83640: reverse arguments to list_add_tail
  USB: serial: qcserial: Add DW5816e support
  f2fs: compress: fix zstd data corruption
  f2fs: add compressed/gc data read IO stat
  f2fs: fix potential use-after-free issue
  f2fs: compress: don't handle non-compressed data in workqueue
  f2fs: remove redundant assignment to variable err
  f2fs: refactor resize_fs to avoid meta updates in progress
  f2fs: use round_up to enhance calculation
  f2fs: introduce F2FS_IOC_RESERVE_COMPRESS_BLOCKS
  f2fs: Avoid double lock for cp_rwsem during checkpoint
  f2fs: report delalloc reserve as non-free in statfs for project quota
  f2fs: Fix wrong stub helper update_sit_info
  f2fs: compress: let lz4 compressor handle output buffer budget properly
  f2fs: remove blk_plugging in block_operations
  f2fs: introduce F2FS_IOC_RELEASE_COMPRESS_BLOCKS
  f2fs: shrink spinlock coverage
  f2fs: correctly fix the parent inode number during fsync()
  f2fs: introduce mempool for {,de}compress intermediate page allocation
  f2fs: introduce f2fs_bmap_compress()
  f2fs: support fiemap on compressed inode
  f2fs: support partial truncation on compressed inode
  f2fs: remove redundant compress inode check
  f2fs: flush dirty meta pages when flushing them
  f2fs: use strcmp() in parse_options()
  f2fs: fix checkpoint=disable:%u%%
  f2fs: Use the correct style for SPDX License Identifier
  f2fs: rework filename handling
  f2fs: split f2fs_d_compare() from f2fs_match_name()
  f2fs: don't leak filename in f2fs_try_convert_inline_dir()
  ANDROID: clang: update to 11.0.1
  FROMLIST: x86_64: fix jiffies ODR violation
  ANDROID: cuttlefish_defconfig: Enable net testing options
  ANDROID: Incremental fs: wake up log pollers less often
  ANDROID: Incremental fs: Fix scheduling while atomic error
  ANDROID: Incremental fs: Avoid continually recalculating hashes
  Revert "f2fs: refactor resize_fs to avoid meta updates in progress"
  UPSTREAM: HID: steam: Fix input device disappearing
  ANDROID: fscrypt: set dun_bytes more precisely
  ANDROID: dm-default-key: set dun_bytes more precisely
  ANDROID: block: backport the ability to specify max_dun_bytes
  ANDROID: hid: steam: remove BT controller matching
  ANDROID: dm-default-key: Update key size for wrapped keys
  ANDROID: cuttlefish_defconfig: Enable CONFIG_STATIC_USERMODEHELPER
  ANDROID: cuttlefish_defconfig: enable CONFIG_MMC_CRYPTO
  ANDROID: Add padding for crypto related structs in UFS and MMC
  ANDROID: mmc: MMC crypto API
  f2fs: fix missing check for f2fs_unlock_op
  f2fs: refactor resize_fs to avoid meta updates in progress

 Conflicts:
	Documentation/devicetree/bindings/usb/dwc3.txt
	drivers/block/virtio_blk.c
	drivers/mmc/core/Kconfig
	drivers/mmc/core/block.c
	drivers/mmc/host/sdhci-msm.c
	drivers/net/ethernet/stmicro/stmmac/stmmac.h
	drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
	drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
	drivers/scsi/ufs/ufs-qcom.c
	drivers/usb/gadget/composite.c
	drivers/usb/gadget/function/f_uac1_legacy.c
	fs/crypto/crypto.c
	fs/crypto/inline_crypt.c
	fs/crypto/keyring.c
	fs/f2fs/checkpoint.c
	include/linux/fs.h
	include/linux/mmc/host.h
	include/linux/mod_devicetable.h
	include/uapi/linux/input-event-codes.h
	net/qrtr/qrtr.c
	sound/core/compress_offload.c
	sound/core/rawmidi.c

Fixed build errors:
	drivers/scsi/ufs/ufshcd.c

Change-Id: I2add911b58d3c87b666ffa0fe46cbceb6cc56430
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>
2020-09-06 01:12:33 +05:30
Greg Kroah-Hartman
0d274200bf Merge 4.14.193 into android-4.14-stable
Changes in 4.14.193
	Revert "scsi: libsas: direct call probe and destruct"
	random32: update the net random state on interrupt and activity
	ARM: percpu.h: fix build error
	random: fix circular include dependency on arm64 after addition of percpu.h
	random32: remove net_rand_state from the latent entropy gcc plugin
	random32: move the pseudo-random 32-bit definitions to prandom.h
	ext4: fix direct I/O read error
	ARM: 8702/1: head-common.S: Clear lr before jumping to start_kernel()
	Linux 4.14.193

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I4b4c5e1aa4379dba5af55d2c08bb9ae0119bc77d
2020-08-07 10:14:11 +02:00
Willy Tarreau
583bcbc024 random32: update the net random state on interrupt and activity
commit f227e3ec3b5cad859ad15666874405e8c1bbc1d4 upstream.

This modifies the first 32 bits out of the 128 bits of a random CPU's
net_rand_state on interrupt or CPU activity to complicate remote
observations that could lead to guessing the network RNG's internal
state.

Note that depending on some network devices' interrupt rate moderation
or binding, this re-seeding might happen on every packet or even almost
never.

In addition, with NOHZ some CPUs might not even get timer interrupts,
leaving their local state rarely updated, while they are running
networked processes making use of the random state.  For this reason, we
also perform this update in update_process_times() in order to at least
update the state when there is user or system activity, since it's the
only case we care about.

Reported-by: Amit Klein <aksecurity@gmail.com>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Eric Dumazet <edumazet@google.com>
Cc: "Jason A. Donenfeld" <Jason@zx2c4.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-07 09:38:41 +02:00