[ Upstream commit 51b9e22ffd3c4c56cbb7caae9750f70e55ffa603 ]
gpmc,mux-add-data is not boolean.
Fixes the below errors flagged by dtbs_check.
"ethernet@4,0:gpmc,mux-add-data: True is not of type 'array'"
Signed-off-by: Roger Quadros <rogerq@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 99154581b05c8fb22607afb7c3d66c1bace6aa5d ]
When parsing the txq list in lpfc_drain_txq(), the driver attempts to pass
the requests to the adapter. If such an attempt fails, a local "fail_msg"
string is set and a log message output. The job is then added to a
completions list for cancellation.
Processing of any further jobs from the txq list continues, but since
"fail_msg" remains set, jobs are added to the completions list regardless
of whether a wqe was passed to the adapter. If successfully added to
txcmplq, jobs are added to both lists resulting in list corruption.
Fix by clearing the fail_msg string after adding a job to the completions
list. This stops the subsequent jobs from being added to the completions
list unless they had an appropriate failure.
Link: https://lore.kernel.org/r/20210910233159.115896-2-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
commit 6f68cd634856f8ca93bafd623ba5357e0f648c68 upstream.
Syzbot reported ODEBUG warning in batadv_nc_mesh_free(). The problem was
in wrong error handling in batadv_mesh_init().
Before this patch batadv_mesh_init() was calling batadv_mesh_free() in case
of any batadv_*_init() calls failure. This approach may work well, when
there is some kind of indicator, which can tell which parts of batadv are
initialized; but there isn't any.
All written above lead to cleaning up uninitialized fields. Even if we hide
ODEBUG warning by initializing bat_priv->nc.work, syzbot was able to hit
GPF in batadv_nc_purge_paths(), because hash pointer in still NULL. [1]
To fix these bugs we can unwind batadv_*_init() calls one by one.
It is good approach for 2 reasons: 1) It fixes bugs on error handling
path 2) It improves the performance, since we won't call unneeded
batadv_*_free() functions.
So, this patch makes all batadv_*_init() clean up all allocated memory
before returning with an error to no call correspoing batadv_*_free()
and open-codes batadv_mesh_free() with proper order to avoid touching
uninitialized fields.
Link: https://lore.kernel.org/netdev/000000000000c87fbd05cef6bcb0@google.com/ [1]
Reported-and-tested-by: syzbot+28b0702ada0bf7381f58@syzkaller.appspotmail.com
Fixes: c6c8fea297 ("net: Add batman-adv meshing protocol")
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Acked-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 3735459037114d31e5acd9894fad9aed104231a0 upstream.
free_msi_irqs() frees the MSI entries before destroying the sysfs entries
which are exposing them. Nothing prevents a concurrent free while a sysfs
file is read and accesses the possibly freed entry.
Move the sysfs release ahead of freeing the entries.
Fixes: 1c51b50c29 ("PCI/MSI: Export MSI mode using attributes, not kobjects")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Bjorn Helgaas <helgaas@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/87sfw5305m.ffs@tglx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 3ec18fc7831e7d79e2d536dd1f3bc0d3ba425e8a upstream.
commit 8779e05ba8aa ("parisc: Fix ptrace check on syscall return")
fixed testing of TI_FLAGS. This uncovered a bug in the test mask.
syscall_restore_rfi is only used when the kernel needs to exit to
usespace with single or block stepping and the recovery counter
enabled. The test however used _TIF_SYSCALL_TRACE_MASK, which
includes a lot of bits that shouldn't be tested here.
Fix this by using TIF_SINGLESTEP and TIF_BLOCKSTEP directly.
I encountered this bug by enabling syscall tracepoints. Both in qemu and
on real hardware. As soon as i enabled the tracepoint (sys_exit_read,
but i guess it doesn't really matter which one), i got random page
faults in userspace almost immediately.
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 0b28179a6138a5edd9d82ad2687c05b3773c387b upstream.
Patch series "memcg: prohibit unconditional exceeding the limit of dying tasks", v3.
Memory cgroup charging allows killed or exiting tasks to exceed the hard
limit. It can be misused and allowed to trigger global OOM from inside
a memcg-limited container. On the other hand if memcg fails allocation,
called from inside #PF handler it triggers global OOM from inside
pagefault_out_of_memory().
To prevent these problems this patchset:
(a) removes execution of out_of_memory() from
pagefault_out_of_memory(), becasue nobody can explain why it is
necessary.
(b) allow memcg to fail allocation of dying/killed tasks.
This patch (of 3):
Any allocation failure during the #PF path will return with VM_FAULT_OOM
which in turn results in pagefault_out_of_memory which in turn executes
out_out_memory() and can kill a random task.
An allocation might fail when the current task is the oom victim and
there are no memory reserves left. The OOM killer is already handled at
the page allocator level for the global OOM and at the charging level
for the memcg one. Both have much more information about the scope of
allocation/charge request. This means that either the OOM killer has
been invoked properly and didn't lead to the allocation success or it
has been skipped because it couldn't have been invoked. In both cases
triggering it from here is pointless and even harmful.
It makes much more sense to let the killed task die rather than to wake
up an eternally hungry oom-killer and send him to choose a fatter victim
for breakfast.
Link: https://lkml.kernel.org/r/0828a149-786e-7c06-b70a-52d086818ea3@virtuozzo.com
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Suggested-by: Michal Hocko <mhocko@suse.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Roman Gushchin <guro@fb.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Cc: Uladzislau Rezki <urezki@gmail.com>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 418ace9992a7647c446ed3186df40cf165b67298 upstream.
Naresh and Antonio ran into a build failure with latest Debian
armhf compilers, with lots of output like
tmp/ccY3nOAs.s:2215: Error: selected processor does not support `cpsid i' in ARM mode
As it turns out, $(cc-option) fails early here when the FPU is not
selected before CPU architecture is selected, as the compiler
option check runs before enabling -msoft-float, which causes
a problem when testing a target architecture level without an FPU:
cc1: error: '-mfloat-abi=hard': selected architecture lacks an FPU
Passing e.g. -march=armv6k+fp in place of -march=armv6k would avoid this
issue, but the fallback logic is already broken because all supported
compilers (gcc-5 and higher) are much more recent than these options,
and building with -march=armv5t as a fallback no longer works.
The best way forward that I see is to just remove all the checks, which
also has the nice side-effect of slightly improving the startup time for
'make'.
The -mtune=marvell-f option was apparently never supported by any mainline
compiler, and the custom Codesourcery gcc build that did support is
now too old to build kernels, so just use -mtune=xscale unconditionally
for those.
This should be safe to apply on all stable kernels, and will be required
in order to keep building them with gcc-11 and higher.
Link: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=996419
Reported-by: Antonio Terceiro <antonio.terceiro@linaro.org>
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Reported-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Tested-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Tested-by: Klaus Kudielka <klaus.kudielka@gmail.com>
Cc: Matthias Klose <doko@debian.org>
Cc: stable@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 9aaa81c3366e8393a62374e3a1c67c69edc07b8a upstream.
Chipidea core was calling the interrupt handler from non-IRQ context
with interrupts enabled, something which can lead to a deadlock if
there's an actual interrupt trying to take a lock that's already held
(e.g. the controller lock in udc_irq()).
Add a wrapper that can be used to fake interrupts instead of calling the
handler directly.
Fixes: 3ecb3e09b0 ("usb: chipidea: Use extcon framework for VBUS and ID detect")
Fixes: 876d4e1e8298 ("usb: chipidea: core: add wakeup support for extcon")
Cc: Peter Chen <peter.chen@kernel.org>
Cc: stable@vger.kernel.org # 4.4
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20211021083447.20078-1-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit c7cd82b90599fa10915f41e3dd9098a77d0aa7b6 ]
Currently vosck_connect() increments sock refcount for nonblocking
socket each time it's called, which can lead to memory leak if
it's called multiple times because connect timeout function decrements
sock refcount only once.
Fixes it by making vsock_connect() return -EALREADY immediately when
sock state is already SS_CONNECTING.
Fixes: d021c34405 ("VSOCK: Introduce VM Sockets")
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Eiichi Tsukata <eiichi.tsukata@nutanix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 9fec40f850658e00a14a7dd9e06f7fbc7e59cc4a ]
skb is already freed by dev_kfree_skb in pn533_fill_fragment_skbs,
but follow error handler branch when pn533_fill_fragment_skbs()
fails, skb is freed again, results in double free issue. Fix this
by not free skb in error path of pn533_fill_fragment_skbs.
Fixes: 963a82e07d ("NFC: pn533: Split large Tx frames in chunks")
Fixes: 93ad42020c ("NFC: pn533: Target mode Tx fragmentation support")
Signed-off-by: Chengfeng Ye <cyeaa@connect.ust.hk>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 8ac9dfd58b138f7e82098a4e0a0d46858b12215b ]
Both ifindex and LLC_SK_DEV_HASH_ENTRIES are signed.
This means that (ifindex % LLC_SK_DEV_HASH_ENTRIES) is negative
if @ifindex is negative.
We could simply make LLC_SK_DEV_HASH_ENTRIES unsigned.
In this patch I chose to use hash_32() to get more entropy
from @ifindex, like llc_sk_laddr_hashfn().
UBSAN: array-index-out-of-bounds in ./include/net/llc.h:75:26
index -43 is out of range for type 'hlist_head [64]'
CPU: 1 PID: 20999 Comm: syz-executor.3 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
ubsan_epilogue+0xb/0x5a lib/ubsan.c:151
__ubsan_handle_out_of_bounds.cold+0x62/0x6c lib/ubsan.c:291
llc_sk_dev_hash include/net/llc.h:75 [inline]
llc_sap_add_socket+0x49c/0x520 net/llc/llc_conn.c:697
llc_ui_bind+0x680/0xd70 net/llc/af_llc.c:404
__sys_bind+0x1e9/0x250 net/socket.c:1693
__do_sys_bind net/socket.c:1704 [inline]
__se_sys_bind net/socket.c:1702 [inline]
__x64_sys_bind+0x6f/0xb0 net/socket.c:1702
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fa503407ae9
Fixes: 6d2e3ea284 ("llc: use a device based hash table to speed up multicast delivery")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit b93c6a911a3fe926b00add28f3b932007827c4ca ]
When I do fuzz test for bonding device interface, I got the following
use-after-free Calltrace:
==================================================================
BUG: KASAN: use-after-free in bond_enslave+0x1521/0x24f0
Read of size 8 at addr ffff88825bc11c00 by task ifenslave/7365
CPU: 5 PID: 7365 Comm: ifenslave Tainted: G E 5.15.0-rc1+ #13
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1 04/01/2014
Call Trace:
dump_stack_lvl+0x6c/0x8b
print_address_description.constprop.0+0x48/0x70
kasan_report.cold+0x82/0xdb
__asan_load8+0x69/0x90
bond_enslave+0x1521/0x24f0
bond_do_ioctl+0x3e0/0x450
dev_ifsioc+0x2ba/0x970
dev_ioctl+0x112/0x710
sock_do_ioctl+0x118/0x1b0
sock_ioctl+0x2e0/0x490
__x64_sys_ioctl+0x118/0x150
do_syscall_64+0x35/0xb0
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f19159cf577
Code: b3 66 90 48 8b 05 11 89 2c 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 78
RSP: 002b:00007ffeb3083c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ffeb3084bca RCX: 00007f19159cf577
RDX: 00007ffeb3083ce0 RSI: 0000000000008990 RDI: 0000000000000003
RBP: 00007ffeb3084bc4 R08: 0000000000000040 R09: 0000000000000000
R10: 00007ffeb3084bc0 R11: 0000000000000246 R12: 00007ffeb3083ce0
R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffeb3083cb0
Allocated by task 7365:
kasan_save_stack+0x23/0x50
__kasan_kmalloc+0x83/0xa0
kmem_cache_alloc_trace+0x22e/0x470
bond_enslave+0x2e1/0x24f0
bond_do_ioctl+0x3e0/0x450
dev_ifsioc+0x2ba/0x970
dev_ioctl+0x112/0x710
sock_do_ioctl+0x118/0x1b0
sock_ioctl+0x2e0/0x490
__x64_sys_ioctl+0x118/0x150
do_syscall_64+0x35/0xb0
entry_SYSCALL_64_after_hwframe+0x44/0xae
Freed by task 7365:
kasan_save_stack+0x23/0x50
kasan_set_track+0x20/0x30
kasan_set_free_info+0x24/0x40
__kasan_slab_free+0xf2/0x130
kfree+0xd1/0x5c0
slave_kobj_release+0x61/0x90
kobject_put+0x102/0x180
bond_sysfs_slave_add+0x7a/0xa0
bond_enslave+0x11b6/0x24f0
bond_do_ioctl+0x3e0/0x450
dev_ifsioc+0x2ba/0x970
dev_ioctl+0x112/0x710
sock_do_ioctl+0x118/0x1b0
sock_ioctl+0x2e0/0x490
__x64_sys_ioctl+0x118/0x150
do_syscall_64+0x35/0xb0
entry_SYSCALL_64_after_hwframe+0x44/0xae
Last potentially related work creation:
kasan_save_stack+0x23/0x50
kasan_record_aux_stack+0xb7/0xd0
insert_work+0x43/0x190
__queue_work+0x2e3/0x970
delayed_work_timer_fn+0x3e/0x50
call_timer_fn+0x148/0x470
run_timer_softirq+0x8a8/0xc50
__do_softirq+0x107/0x55f
Second to last potentially related work creation:
kasan_save_stack+0x23/0x50
kasan_record_aux_stack+0xb7/0xd0
insert_work+0x43/0x190
__queue_work+0x2e3/0x970
__queue_delayed_work+0x130/0x180
queue_delayed_work_on+0xa7/0xb0
bond_enslave+0xe25/0x24f0
bond_do_ioctl+0x3e0/0x450
dev_ifsioc+0x2ba/0x970
dev_ioctl+0x112/0x710
sock_do_ioctl+0x118/0x1b0
sock_ioctl+0x2e0/0x490
__x64_sys_ioctl+0x118/0x150
do_syscall_64+0x35/0xb0
entry_SYSCALL_64_after_hwframe+0x44/0xae
The buggy address belongs to the object at ffff88825bc11c00
which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 0 bytes inside of
1024-byte region [ffff88825bc11c00, ffff88825bc12000)
The buggy address belongs to the page:
page:ffffea00096f0400 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x25bc10
head:ffffea00096f0400 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x57ff00000010200(slab|head|node=1|zone=2|lastcpupid=0x7ff)
raw: 057ff00000010200 ffffea0009a71c08 ffff888240001968 ffff88810004dbc0
raw: 0000000000000000 00000000000a000a 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff88825bc11b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff88825bc11b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88825bc11c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88825bc11c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88825bc11d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
Put new_slave in bond_sysfs_slave_add() will cause use-after-free problems
when new_slave is accessed in the subsequent error handling process. Since
new_slave will be put in the subsequent error handling process, remove the
unnecessary put to fix it.
In addition, when sysfs_create_file() fails, if some files have been crea-
ted successfully, we need to call sysfs_remove_file() to remove them.
Since there are sysfs_create_files() & sysfs_remove_files() can be used,
use these two functions instead.
Fixes: 7afcaec496 (bonding: use kobject_put instead of _del after kobject_add)
Signed-off-by: Huang Guobin <huangguobin4@huawei.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit d52bcb47bdf971a59a2467975d2405fcfcb2fa19 ]
This patch allows to use 0 for `coal->rx_coalesce_usecs` param to
disable rx irq coalescing.
Previously we could enable rx irq coalescing via ethtool
(For ex: `ethtool -C eth0 rx-usecs 2000`) but we couldn't disable
it because this part rejects 0 value:
if (!coal->rx_coalesce_usecs)
return -EINVAL;
Fixes: 84da2658a6 ("TI DaVinci EMAC : Implement interrupt pacing functionality.")
Signed-off-by: Maxim Kiselev <bigunclemax@gmail.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Link: https://lore.kernel.org/r/20211101152343.4193233-1-bigunclemax@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 1aaa557b2db95c9506ed0981bc34505c32d6b62b ]
'make randconfig' can produce a .config file with
"CONFIG_MEMORY_RESERVE=" (no value) since it has no default.
When a subsequent 'make all' is done, kconfig restarts the config
and prompts for a value for MEMORY_RESERVE. This breaks
scripting/automation where there is no interactive user input.
Add a default value for MEMORY_RESERVE. (Any integer value will
work here for kconfig.)
Fixes a kconfig warning:
.config:214:warning: symbol value '' invalid for MEMORY_RESERVE
* Restart config...
Memory reservation (MiB) (MEMORY_RESERVE) [] (NEW)
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2") # from beginning of git history
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greg Ungerer <gerg@linux-m68k.org>
Cc: linux-m68k@lists.linux-m68k.org
Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 5648b5e1169ff1d6d6a46c35c0b5fbebd2a5cbb2 ]
On 64bit platforms the MAC header is set to 0xffff on allocation and
also when a helper like skb_unset_mac_header() is called.
dev_parse_header may call skb_mac_header() which assumes valid mac offset:
BUG: KASAN: use-after-free in eth_header_parse+0x75/0x90
Read of size 6 at addr ffff8881075a5c05 by task nf-queue/1364
Call Trace:
memcpy+0x20/0x60
eth_header_parse+0x75/0x90
__nfqnl_enqueue_packet+0x1a61/0x3380
__nf_queue+0x597/0x1300
nf_queue+0xf/0x40
nf_hook_slow+0xed/0x190
nf_hook+0x184/0x440
ip_output+0x1c0/0x2a0
nf_reinject+0x26f/0x700
nfqnl_recv_verdict+0xa16/0x18b0
nfnetlink_rcv_msg+0x506/0xe70
The existing code only works if the skb has a mac header.
Fixes: 2c38de4c1f ("netfilter: fix looped (broad|multi)cast's MAC handling")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit f4875d509a0a78ad294a1a538d534b5ba94e685a ]
This variable is just a temporary variable, used to do an endian
conversion. The problem is that the last byte is not initialized. After
the conversion is completely done, the last byte is discarded so it doesn't
cause a problem. But static checkers and the KMSan runtime checker can
detect the uninitialized read and will complain about it.
Link: https://lore.kernel.org/r/20211006073242.GA8404@kili
Fixes: 5036f0a0ec ("[SCSI] csiostor: Fix sparse warnings.")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit bf895295e9a73411889816f1a0c1f4f1a2d9c678 ]
Currently the rt5033_battery driver provides voltage values in mV. It
should be µV as stated in Documentation/power/power_supply_class.rst.
Fixes: b847dd96e6 ("power: rt5033_battery: Add RT5033 Fuel gauge device driver")
Cc: Beomho Seo <beomho.seo@samsung.com>
Cc: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Jakob Hauser <jahau@rocketmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit f2719b26ae27282c145202ffd656d5ff1fe737cc ]
While investigating a lockup at startup on Powerbook 3400C, it was
identified that the fbdev driver generates alignment exception at
startup:
--- interrupt: 600 at memset+0x60/0xc0
NIP: c0021414 LR: c03fc49c CTR: 00007fff
REGS: ca021c10 TRAP: 0600 Tainted: G W (5.14.2-pmac-00727-g12a41fa69492)
MSR: 00009032 <EE,ME,IR,DR,RI> CR: 44008442 XER: 20000100
DAR: cab80020 DSISR: 00017c07
GPR00: 00000007 ca021cd0 c14412e0 cab80000 00000000 00100000 cab8001c 00000004
GPR08: 00100000 00007fff 00000000 00000000 84008442 00000000 c0006fb4 00000000
GPR16: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00100000
GPR24: 00000000 81800000 00000320 c15fa400 c14d1878 00000000 c14d1800 c094e19c
NIP [c0021414] memset+0x60/0xc0
LR [c03fc49c] chipsfb_pci_init+0x160/0x580
--- interrupt: 600
[ca021cd0] [c03fc46c] chipsfb_pci_init+0x130/0x580 (unreliable)
[ca021d20] [c03a3a70] pci_device_probe+0xf8/0x1b8
[ca021d50] [c043d584] really_probe.part.0+0xac/0x388
[ca021d70] [c043d914] __driver_probe_device+0xb4/0x170
[ca021d90] [c043da18] driver_probe_device+0x48/0x144
[ca021dc0] [c043e318] __driver_attach+0x11c/0x1c4
[ca021de0] [c043ad30] bus_for_each_dev+0x88/0xf0
[ca021e10] [c043c724] bus_add_driver+0x190/0x22c
[ca021e40] [c043ee94] driver_register+0x9c/0x170
[ca021e60] [c0006c28] do_one_initcall+0x54/0x1ec
[ca021ed0] [c08246e4] kernel_init_freeable+0x1c0/0x270
[ca021f10] [c0006fdc] kernel_init+0x28/0x11c
[ca021f30] [c0017148] ret_from_kernel_thread+0x14/0x1c
Instruction dump:
7d4601a4 39490777 7d4701a4 39490888 7d4801a4 39490999 7d4901a4 39290aaa
7d2a01a4 4c00012c 4bfffe88 0fe00000 <4bfffe80> 9421fff0 38210010 48001970
This is due to 'dcbz' instruction being used on non-cached memory.
'dcbz' instruction is used by memset() to zeroize a complete
cacheline at once, and memset() is not expected to be used on non
cached memory.
When performing a 'sparse' check on fbdev driver, it also appears
that the use of memset() is unexpected:
drivers/video/fbdev/chipsfb.c:334:17: warning: incorrect type in argument 1 (different address spaces)
drivers/video/fbdev/chipsfb.c:334:17: expected void *
drivers/video/fbdev/chipsfb.c:334:17: got char [noderef] __iomem *screen_base
drivers/video/fbdev/chipsfb.c:334:15: warning: memset with byte count of 1048576
Use fb_memset() instead of memset(). fb_memset() is defined as
memset_io() for powerpc.
Fixes: 8c8709334c ("[PATCH] ppc32: Remove CONFIG_PMAC_PBOOK")
Reported-by: Stan Johnson <userm57@yahoo.com>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/884a54f1e5cb774c1d9b4db780209bee5d4f6718.1631712563.git.christophe.leroy@csgroup.eu
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 4ed2f3545c2e5acfbccd7f85fea5b1a82e9862d7 ]
The error handling code of fsl_ifc_ctrl_probe is problematic. When
fsl_ifc_ctrl_init fails or request_irq of fsl_ifc_ctrl_dev->irq fails,
it forgets to free the irq and nand_irq. Meanwhile, if request_irq of
fsl_ifc_ctrl_dev->nand_irq fails, it will still free nand_irq even if
the request_irq is not successful.
Fix this by refactoring the error handling code.
Fixes: d2ae2e20fb ("driver/memory:Move Freescale IFC driver to a common driver")
Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Link: https://lore.kernel.org/r/20210925151434.8170-1-mudongliangabcd@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit c48a14dca2cb57527dde6b960adbe69953935f10 ]
In jfs_mount, when diMount(ipaimap2) fails, it goes to errout35. However,
the following code does not free ipaimap2 allocated by diReadSpecial.
Fix this by refactoring the error handling code of jfs_mount. To be
specific, modify the lable name and free ipaimap2 when the above error
ocurrs.
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit cbd9a3347c757383f3d2b50cf7cfd03eb479c481 ]
dc395x_init_one()->adapter_init() might fail. In this case, the acb is
already cleaned up by adapter_init(), no need to do that in
adapter_uninit(acb) again.
[ 1.252251] dc395x: adapter init failed
[ 1.254900] RIP: 0010:adapter_uninit+0x94/0x170 [dc395x]
[ 1.260307] Call Trace:
[ 1.260442] dc395x_init_one.cold+0x72a/0x9bb [dc395x]
Link: https://lore.kernel.org/r/20210907040702.1846409-1-ztong0001@gmail.com
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Reviewed-by: Finn Thain <fthain@linux-m68k.org>
Signed-off-by: Tong Zhang <ztong0001@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 68b6dea802cea0dbdd8bd7ccc60716b5a32a5d8a ]
These three events can race when pcrypt is used multiple times in a
template ("pcrypt(pcrypt(...))"):
1. [taskA] The caller makes the crypto request via crypto_aead_encrypt()
2. [kworkerB] padata serializes the inner pcrypt request
3. [kworkerC] padata serializes the outer pcrypt request
3 might finish before the call to crypto_aead_encrypt() returns in 1,
resulting in two possible issues.
First, a use-after-free of the crypto request's memory when, for
example, taskA writes to the outer pcrypt request's padata->info in
pcrypt_aead_enc() after kworkerC completes the request.
Second, the outer pcrypt request overwrites the inner pcrypt request's
return code with -EINPROGRESS, making a successful request appear to
fail. For instance, kworkerB writes the outer pcrypt request's
padata->info in pcrypt_aead_done() and then taskA overwrites it
in pcrypt_aead_enc().
Avoid both situations by delaying the write of padata->info until after
the inner crypto request's return code is checked. This prevents the
use-after-free by not touching the crypto request's memory after the
next-inner crypto request is made, and stops padata->info from being
overwritten.
Fixes: 5068c7a883 ("crypto: pcrypt - Add pcrypt crypto parallelization wrapper")
Reported-by: syzbot+b187b77c8474f9648fae@syzkaller.appspotmail.com
Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit cc8a8bc37466f79b24d972555237f3d591150602 ]
While looking at on-air packets using Wireshark, I noticed we're never
setting the initiator bit when sending DELBA requests to the AP: While
we set the bit on our del_ba_param_set bitmask, we forget to actually
copy that bitmask over to the command struct, which means we never
actually set the initiator bit.
Fix that and copy the bitmask over to the host_cmd_ds_11n_delba command
struct.
Fixes: 5e6e3a92b9 ("wireless: mwifiex: initial commit for Marvell mwifiex driver")
Signed-off-by: Jonas Dreßler <verdre@v0yd.nl>
Acked-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211016153244.24353-5-verdre@v0yd.nl
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit fd96e35ea7b95f1e216277805be89d66e4ae962d ]
A new warning in clang points out a use of bitwise OR with boolean
expressions in this driver:
drivers/platform/x86/thinkpad_acpi.c:9061:11: error: use of bitwise '|' with boolean operands [-Werror,-Wbitwise-instead-of-logical]
else if ((strlencmp(cmd, "level disengaged") == 0) |
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
||
drivers/platform/x86/thinkpad_acpi.c:9061:11: note: cast one or both operands to int to silence this warning
1 error generated.
This should clearly be a logical OR so change it to fix the warning.
Fixes: fe98a52ce7 ("ACPI: thinkpad-acpi: add sysfs support to fan subdriver")
Link: https://github.com/ClangBuiltLinux/linux/issues/1476
Reported-by: Tor Vic <torvic9@mailbox.org>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/r/20211018182537.2316800-1-nathan@kernel.org
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 24bcbe1cc69fa52dc4f7b5b2456678ed464724d8 ]
sk_stream_kill_queues() can be called on close when there are
still outstanding skbs to transmit. Those skbs may try to queue
notifications to the error queue (e.g. timestamps).
If sk_stream_kill_queues() purges the queue without taking
its lock the queue may get corrupted, and skbs leaked.
This shows up as a warning about an rmem leak:
WARNING: CPU: 24 PID: 0 at net/ipv4/af_inet.c:154 inet_sock_destruct+0x...
The leak is always a multiple of 0x300 bytes (the value is in
%rax on my builds, so RAX: 0000000000000300). 0x300 is truesize of
an empty sk_buff. Indeed if we dump the socket state at the time
of the warning the sk_error_queue is often (but not always)
corrupted. The ->next pointer points back at the list head,
but not the ->prev pointer. Indeed we can find the leaked skb
by scanning the kernel memory for something that looks like
an skb with ->sk = socket in question, and ->truesize = 0x300.
The contents of ->cb[] of the skb confirms the suspicion that
it is indeed a timestamp notification (as generated in
__skb_complete_tx_timestamp()).
Removing purging of sk_error_queue should be okay, since
inet_sock_destruct() does it again once all socket refs
are gone. Eric suggests this may cause sockets that go
thru disconnect() to maintain notifications from the
previous incarnations of the socket, but that should be
okay since the race was there anyway, and disconnect()
is not exactly dependable.
Thanks to Jonathan Lemon and Omar Sandoval for help at various
stages of tracing the issue.
Fixes: cb9eff0978 ("net: new user space API for time stamping of incoming and outgoing packets")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 2203bd0e5c12ffc53ffdd4fbd7b12d6ba27e0424 ]
The msm_gem_new_impl() function cleans up after itself so there is no
need to call drm_gem_object_put(). Conceptually, it does not make sense
to call a kref_put() function until after the reference counting has
been initialized which happens immediately after this call in the
drm_gem_(private_)object_init() functions.
In the msm_gem_import() function the "obj" pointer is uninitialized, so
it will lead to a crash.
Fixes: 05b849111c ("drm/msm: prime support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20211013081315.GG6010@kili
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit beae4a6258e64af609ad5995cc6b6056eb0d898e ]
The "msh" pointer is device managed, meaning that memstick_alloc_host()
calls device_initialize() on it. That means that it can't be free
using kfree() but must instead be freed with memstick_free_host().
Otherwise it leads to a tiny memory leak of device resources.
Fixes: 60fdd931d5 ("memstick: add support for JMicron jmb38x MemoryStick host controller")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20211011123912.GD15188@kili
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 4853396f03c3019eccf5cd113e464231e9ddf0b3 ]
clang-14 complains about a sanity check that always passes when the
page size is 64KB or larger:
drivers/memstick/core/ms_block.c:1739:21: error: result of comparison of constant 65536 with expression of type 'unsigned short' is always false [-Werror,-Wtautological-constant-out-of-range-compare]
if (msb->page_size > PAGE_SIZE) {
~~~~~~~~~~~~~~ ^ ~~~~~~~~~
This is fine, it will still work on all architectures, so just shut
up that warning with a cast.
Fixes: 0ab30494bc ("memstick: add support for legacy memorysticks")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20210927094520.696665-1-arnd@kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 9b793db5fca44d01f72d3564a168171acf7c4076 ]
The problem is that "channel" is an unsigned int, when it's less 5 the
value of "channel - 5" is not a negative number as one would expect but
is very high positive value instead.
This means that "start" becomes a very high positive value. The result
of that is that we never enter the "for (i = start; i <= end; i++) {"
loop. Instead of storing the result from b43legacy_radio_aci_detect()
it just uses zero.
Fixes: ef1a628d83 ("b43: Implement dynamic PHY API")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Michael Büsch <m@bues.ch>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211006073621.GE8404@kili
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit c1c8380b0320ab757e60ed90efc8b1992a943256 ]
The problem is that "channel" is an unsigned int, when it's less 5 the
value of "channel - 5" is not a negative number as one would expect but
is very high positive value instead.
This means that "start" becomes a very high positive value. The result
of that is that we never enter the "for (i = start; i <= end; i++) {"
loop. Instead of storing the result from b43legacy_radio_aci_detect()
it just uses zero.
Fixes: 75388acd0c ("[B43LEGACY]: add mac80211-based driver for legacy BCM43xx devices")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Michael Büsch <m@bues.ch>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211006073542.GD8404@kili
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 9b768e8a3909ac1ab39ed44a3933716da7761a6f ]
Detect a PFVF collision between the local and the remote function by
checking if the message on the PFVF CSR has been overwritten.
This is done after the remote function confirms that the message has
been received, by clearing the interrupt bit, or the maximum number of
attempts (ADF_IOV_MSG_ACK_MAX_RETRY) to check the CSR has been exceeded.
Fixes: ed8ccaef52 ("crypto: qat - Add support for SRIOV")
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Co-developed-by: Marco Chiappero <marco.chiappero@intel.com>
Signed-off-by: Marco Chiappero <marco.chiappero@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 4925642d541278575ad1948c5924d71ffd57ef14 ]
In tests with two Lima boards from 8devices (QCA4531 based) on OpenWrt
19.07 we could force a silent restart of a device with no serial
output when we were sending a high amount of UDP traffic (iperf3 at 80
MBit/s in both directions from external hosts, saturating the wifi and
causing a load of about 4.5 to 6) and were then triggering an
ath9k_queue_reset().
Further debugging showed that the restart was caused by the ath79
watchdog. With disabled watchdog we could observe that the device was
constantly going into ath_isr() interrupt handler and was returning
early after the ATH_OP_HW_RESET flag test, without clearing any
interrupts. Even though ath9k_queue_reset() calls
ath9k_hw_kill_interrupts().
With JTAG we could observe the following race condition:
1) ath9k_queue_reset()
...
-> ath9k_hw_kill_interrupts()
-> set_bit(ATH_OP_HW_RESET, &common->op_flags);
...
<- returns
2) ath9k_tasklet()
...
-> ath9k_hw_resume_interrupts()
...
<- returns
3) loops around:
...
handle_int()
-> ath_isr()
...
-> if (test_bit(ATH_OP_HW_RESET,
&common->op_flags))
return IRQ_HANDLED;
x) ath_reset_internal():
=> never reached <=
And in ath_isr() we would typically see the following interrupts /
interrupt causes:
* status: 0x00111030 or 0x00110030
* async_cause: 2 (AR_INTR_MAC_IPQ)
* sync_cause: 0
So the ath9k_tasklet() reenables the ath9k interrupts
through ath9k_hw_resume_interrupts() which ath9k_queue_reset() had just
disabled. And ath_isr() then keeps firing because it returns IRQ_HANDLED
without actually clearing the interrupt.
To fix this IRQ storm also clear/disable the interrupts again when we
are in reset state.
Cc: Sven Eckelmann <sven@narfation.org>
Cc: Simon Wunderlich <sw@simonwunderlich.de>
Cc: Linus Lüssing <linus.luessing@c0d3.blue>
Fixes: 872b5d814f ("ath9k: do not access hardware on IRQs during reset")
Signed-off-by: Linus Lüssing <ll@simonwunderlich.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210914192515.9273-3-linus.luessing@c0d3.blue
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit e5f5a66c9aa9c331da5527c2e3fd9394e7091e01 ]
Commit c343bf1ba5ef ("cpuidle: Fix three reference count leaks")
fixes the cleanup of kobjects; however, it removes kfree() calls
altogether, leading to memory leaks.
Fix those and also defer the initialization of dev->kobj_dev until
after the error check, so that we do not end up with a dangling
pointer.
Fixes: c343bf1ba5ef ("cpuidle: Fix three reference count leaks")
Signed-off-by: Anel Orazgaliyeva <anelkz@amazon.de>
Suggested-by: Aman Priyadarshi <apeureka@amazon.de>
[ rjw: Subject edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 2908249f3878a591f7918368fdf0b7b0a6c3158c ]
The "card" string only holds 31 characters (and the terminating NUL).
In order to avoid truncation, use a shorter card description instead of
the current result, "Silicon Labs Si470x FM Radio Re".
Suggested-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Fixes: 78656acdcf ("V4L/DVB (7038): USB radio driver for Silicon Labs Si470x FM Radio Receivers")
Fixes: cc35bbddfe ("V4L/DVB (12416): radio-si470x: add i2c driver for si470x")
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit afae4ef7d5ad913cab1316137854a36bea6268a5 ]
Syzbot reported ununit-value bug in az6027_rc_query(). The problem was
in missing state pointer initialization. Since this function does nothing
we can simply initialize state to REMOTE_NO_KEY_PRESSED.
Reported-and-tested-by: syzbot+2cd8c5db4a85f0a04142@syzkaller.appspotmail.com
Fixes: 76f9a820c8 ("V4L/DVB: AZ6027: Initial import of the driver")
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
