udc
546 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Suren Baghdasaryan
|
d586a54705 |
UPSTREAM: pidfd: fix a poll race when setting exit_state
There is a race between reading task->exit_state in pidfd_poll and
writing it after do_notify_parent calls do_notify_pidfd. Expected
sequence of events is:
CPU 0 CPU 1
------------------------------------------------
exit_notify
do_notify_parent
do_notify_pidfd
tsk->exit_state = EXIT_DEAD
pidfd_poll
if (tsk->exit_state)
However nothing prevents the following sequence:
CPU 0 CPU 1
------------------------------------------------
exit_notify
do_notify_parent
do_notify_pidfd
pidfd_poll
if (tsk->exit_state)
tsk->exit_state = EXIT_DEAD
This causes a polling task to wait forever, since poll blocks because
exit_state is 0 and the waiting task is not notified again. A stress
test continuously doing pidfd poll and process exits uncovered this bug.
To fix it, we make sure that the task's exit_state is always set before
calling do_notify_pidfd.
Fixes: b53b0b9d9a6 ("pidfd: add polling support")
Cc: kernel-team@android.com
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Link: https://lore.kernel.org/r/20190717172100.261204-1-joel@joelfernandes.org
[christian@brauner.io: adapt commit message and drop unneeded changes from wait_task_zombie]
Signed-off-by: Christian Brauner <christian@brauner.io>
(cherry picked from commit b191d6491be67cef2b3fa83015561caca1394ab9)
Bug: 135608568
Test: test program using syscall(__NR_sys_pidfd_open,..) and poll()
Change-Id: I043e54c9b69f25de88f6f19ae167920af8532de2
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
|
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Michael Bestas
|
29daf360fe |
Merge remote-tracking branch 'common/android-4.4-p' into android-msm-wahoo-4.4
# By Daniel Rosenberg (98) and others
# Via Greg Kroah-Hartman (219) and others
* google/common/android-4.4-p:
ANDROID: xt_qtaguid: fix UAF race
ANDROID: Make vsock virtio packet buff size configurable
ANDROID: cuttlefish_defconfig: add missing CONFIG_BLK_CGROUP
ANDROID: xt_qtaguid: Remove tag_entry from process list on untag
ANDROID: usb: f_accessory: Don't drop NULL reference in acc_disconnect()
ANDROID: usb: f_accessory: Avoid bitfields for shared variables
ANDROID: usb: f_accessory: Cancel any pending work before teardown
ANDROID: usb: f_accessory: Don't corrupt global state on double registration
ANDROID: usb: f_accessory: Fix teardown ordering in acc_release()
ANDROID: usb: f_accessory: Add refcounting to global 'acc_dev'
UPSTREAM: locking/atomic, kref: Add KREF_INIT()
ANDROID: usb: f_accessory: Wrap '_acc_dev' in get()/put() accessors
ANDROID: usb: f_accessory: Remove useless assignment
ANDROID: usb: f_accessory: Remove useless non-debug prints
ANDROID: usb: f_accessory: Remove stale comments
ANDROID: USB: f_accessory: Check dev pointer before decoding ctrl request
ANDROID: usb: gadget: f_accessory: fix CTS test stuck
ANDROID: cuttlefish_defconfig: Disable CONFIG_KSM
UPSTREAM: arm64: SW PAN: Point saved ttbr0 at the zero page when switching to init_mm
UPSTREAM: arm64: kaslr: Fix up the kernel image alignment
UPSTREAM: sched/fair: Fix FTQ noise bench regression
UPSTREAM: dm verity fec: fix bufio leaks
UPSTREAM: arm64: kernel: restrict /dev/mem read() calls to linear region
UPSTREAM: binder: fix incorrect cmd to binder_stat_br
UPSTREAM: arm64: SW PAN: Update saved ttbr0 value on enter_lazy_tlb
UPSTREAM: KVM: arm/arm64: Check pagesize when allocating a hugepage at Stage 2
UPSTREAM: fs/proc/kcore.c: use probe_kernel_read() instead of memcpy()
UPSTREAM: arm64: fix unwind_frame() for filtered out fn for function graph tracing
UPSTREAM: arm64: kpti: Use early_param for kpti= command-line option
UPSTREAM: arm64: kaslr: ensure randomized quantities are clean to the PoC
UPSTREAM: arm64: kaslr: ensure randomized quantities are clean also when kaslr is off
UPSTREAM: staging: android: vsoc: fix copy_from_user overrun
UPSTREAM: arm64/mm: Inhibit huge-vmap with ptdump
UPSTREAM: drivers/perf: arm_pmu: Fix failure path in PM notifier
UPSTREAM: fs/posix_acl.c: fix kernel-doc warnings
UPSTREAM: ext2: fix debug reference to ext2_xattr_cache
UPSTREAM: arm64: alternative: fix build with clang integrated assembler
UPSTREAM: dm verity fec: fix hash block number in verity_fec_decode
ANDROID: Temporarily disable XFRM_USER_COMPAT filtering
BACKPORT: xfrm/compat: Translate 32-bit user_policy from sockptr
BACKPORT: xfrm/compat: Add 32=>64-bit messages translator
UPSTREAM: xfrm/compat: Attach xfrm dumps to 64=>32 bit translator
BACKPORT: xfrm/compat: Add 64=>32-bit messages translator
BACKPORT: xfrm: Provide API to register translator module
UPSTREAM: mm/sl[uo]b: export __kmalloc_track(_node)_caller
ANDROID: Publish uncompressed Image on aarch64
ANDROID: Makefile: append BUILD_NUMBER to version string when defined
UPSTREAM: binder: fix UAF when releasing todo list
ANDROID: fix a bug in quota2
UPSTREAM: binder: Prevent context manager from incrementing ref 0
BACKPORT: xtables: extend matches and targets with .usersize
UPSTREAM: ip6tables: use match, target and data copy_to_user helpers
UPSTREAM: iptables: use match, target and data copy_to_user helpers
UPSTREAM: xtables: add xt_match, xt_target and data copy_to_user functions
ANDROID: cuttlefish_defconfig: Drop built-in cmdline (except nopti)
ANDROID: cuttlefish defconfig - enable mount/net/uts namespaces.
ANDROID: hid: steam: remove BT controller matching
UPSTREAM: HID: steam: Fix input device disappearing
Revert "ext2: fix empty body warnings when -Wextra is used"
Revert "net: ipv6: Fix processing of RAs in presence of VRF"
UPSTREAM: net: socket: set sock->sk to NULL after calling proto_ops::release()
BACKPORT: xfrm: Allow Output Mark to be Updated Using UPDSA
UPSTREAM: socket: close race condition between sock_close() and sockfs_setattr()
UPSTREAM: net: ipv6: Use passed in table for nexthop lookups
ANDROID: cuttlefish_defconfig: Fix dm-verity related options
Revert "ANDROID: dm verity: add minimum prefetch size"
ANDROID: mnt: Propagate remount correctly
BACKPORT: loop: Add LOOP_SET_BLOCK_SIZE in compat ioctl
UPSTREAM: loop: drop caches if offset or block_size are changed
UPSTREAM: loop: add ioctl for changing logical block size
BACKPORT: block/loop: set hw_sectors
ANDROID: cuttlefish_defconfig: Minimally enable EFI
UPSTREAM: bpf: Explicitly memset the bpf_attr structure
FROMLIST: HID: nintendo: add nintendo switch controller driver
UPSTREAM: staging: most: net: fix buffer overflow
UPSTREAM: ALSA: pcm: Add missing copy ops check before clearing buffer
ANDROID: selinux: modify RTM_GETLINK permission
UPSTREAM: HID: input: map digitizer battery usage
UPSTREAM: HID: input: ignore the battery in OKLICK Laser BTmouse
ANDROID: cuttlefish_defconfig: Disable TRANSPARENT_HUGEPAGE
commit e82b9b0727ff ("vhost: introduce vhost_exceeds_weight()")
UPSTREAM: HID: steam: fix deadlock with input devices.
UPSTREAM: HID: steam: fix boot loop with bluetooth firmware
UPSTREAM: HID: steam: remove input device when a hid client is running.
UPSTREAM: HID: steam: use hid_device.driver_data instead of hid_set_drvdata()
UPSTREAM: HID: steam: add missing fields in client initialization
UPSTREAM: HID: steam: add battery device.
UPSTREAM: HID: add driver for Valve Steam Controller
UPSTREAM: HID: sony: Fix memory corruption issue on cleanup.
UPSTREAM: HID: sony: Fix race condition between rumble and device remove.
UPSTREAM: HID: sony: remove redundant check for -ve err
UPSTREAM: HID: sony: Make sure to unregister sensors on failure
UPSTREAM: HID: sony: Make DS4 bt poll interval adjustable
UPSTREAM: HID: sony: Set proper bit flags on DS4 output report
UPSTREAM: HID: sony: DS4 use brighter LED colors
UPSTREAM: HID: sony: Improve navigation controller axis/button mapping
UPSTREAM: HID: sony: Use DS3 MAC address as unique identifier on USB
UPSTREAM: HID: sony: Perform duplicate device check earlier on
UPSTREAM: HID: sony: Expose DS3 motion sensors through separate device
UPSTREAM: HID: sony: Print error on failure to active DS3 / Navigation controllers
UPSTREAM: HID: sony: DS3 comply to Linux gamepad spec
UPSTREAM: HID: sony: Mark DS4 touchpad device as a pointer
UPSTREAM: HID: sony: Support motion sensor calibration on dongle
UPSTREAM: HID: sony: Make work handling more generic
UPSTREAM: HID: sony: Treat the ds4 dongle as a separate device
UPSTREAM: HID: sony: Remove report descriptor fixup for DS4
UPSTREAM: HID: sony: Report hardware timestamp for DS4 sensor values
UPSTREAM: HID: sony: Calibrate DS4 motion sensors
UPSTREAM: HID: sony: Report DS4 motion sensors through a separate device
UPSTREAM: HID: sony: Fix input device leak when connecting a DS4 twice using USB/BT
UPSTREAM: HID: sony: Use LED_CORE_SUSPENDRESUME
UPSTREAM: HID: sony: Ignore DS4 dongle reports when no device is connected
UPSTREAM: HID: sony: Use DS4 MAC address as unique identifier on USB
UPSTREAM: HID: sony: Fix error handling bug when touchpad registration fails
UPSTREAM: HID: sony: Comply to Linux gamepad spec for DS4
UPSTREAM: HID: sony: Make the DS4 touchpad a separate device
UPSTREAM: HID: sony: Fix memory issue when connecting device using both Bluetooth and USB
UPSTREAM: HID: sony: Adjust value range for motion sensors
UPSTREAM: HID: sony: Handle multiple touch events input record
UPSTREAM: HID: sony: Send ds4 output reports on output end-point
UPSTREAM: HID: sony: Perform CRC check on bluetooth input packets
UPSTREAM: HID: sony: Adjust HID report size name definitions
UPSTREAM: HID: sony: Fix race condition in sony_probe
UPSTREAM: HID: sony: Update copyright and add Dualshock 4 rate control note
UPSTREAM: HID: sony: Defer the initial USB Sixaxis output report
UPSTREAM: HID: sony: Relax duplicate checking for USB-only devices
UPSTREAM: HID: sony: underscores are unnecessary for u8, u16, s32
UPSTREAM: HID: sony: fix some warnings from scripts/checkpatch.pl
UPSTREAM: HID: sony: fix errors from scripts/checkpatch.pl
UPSTREAM: HID: sony: fix a typo in descriptors comments s/Joystik/Joystick/
UPSTREAM: HID: sony: Fixup output reports for the nyko core controller
UPSTREAM: HID: sony: Remove the size check for the Dualshock 4 HID Descriptor
UPSTREAM: HID: sony: Save and restore the controller state on suspend and resume
UPSTREAM: HID: sony: Refactor the output report sending functions
ANDROID: cpufreq: times: add /proc/uid_concurrent_{active,policy}_time
rtlwifi: Fix potential overflow on P2P code
ANDROID: clang: update to 9.0.8 based on r365631c
ANDROID: move up spin_unlock_bh() ahead of remove_proc_entry()
ANDROID: refactor build.config files to remove duplication
ANDROID: usb: gadget: Fix dependency for f_accessory
Remove taskname from lowmemorykiller kill reports
ANDROID: Fixes to locking around handle_lmk_event
Revert "ANDROID: regression introduced override_creds=off"
ANDROID: regression introduced override_creds=off
Fix fallout from changes to bootparam_utils.h
ANDROID: sched: Disallow WALT with CFS bandwidth control
ANDROID: fiq_debugger: remove
ANDROID: arm64: fix leftover RWX when using CONFIG_UNMAP_KERNEL_AT_EL0
ANDROID: fix kernelci build-break in lowmemorykiller
ANDROID: Avoid taking multiple locks in handle_lmk_event
UPSTREAM: net-ipv6-ndisc: add support for RFC7710 RA Captive Portal Identifier
ANDROID: fix binder change in merge of 4.4.183
Fix overlayfs build break
binder: binder: fix possible UAF when freeing buffer
ANDROID: Revert "f2fs: avoid out-of-range memory access"
ANDROID: overlayfs: Fix a regression in commit
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Michael Bestas
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fc5015d369 |
Squashed revert of CPU UID time commits
* Reverting the following wahoo commits to reduce merge conflicts with android-4.4-p * android-4.4-p has a more up to date version of these patches Revert "cpufreq: stats: optimize proc files" This reverts commit |
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Michael Bestas
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674a75a07c |
Merge tag 'v4.4.255' into android-msm-wahoo-4.4
This is the 4.4.255 stable release # gpg: Signature made Thu Feb 4 00:19:04 2021 EET # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Good signature from "Greg Kroah-Hartman <gregkh@kernel.org>" [full] # gpg: gregkh@kernel.org: Verified 6 signatures in the past 2 hours. Encrypted # 0 messages. # By Thomas Gleixner (11) and others # Via Greg Kroah-Hartman * tag 'v4.4.255': Linux 4.4.255 NFC: fix possible resource leak NFC: fix resource leak when target index is invalid iommu/vt-d: Don't dereference iommu_device if IOMMU_API is not built iommu/vt-d: Gracefully handle DMAR units with no supported address widths can: dev: prevent potential information leak in can_fill_info() mac80211: pause TX while changing interface type RDMA/cxgb4: Fix the reported max_recv_sge value xfrm: Fix oops in xfrm_replay_advance_bmp netfilter: nft_dynset: add timeout extension to template ARM: imx: build suspend-imx6.S with arm instruction set futex: Prevent exit livelock futex: Provide distinct return value when owner is exiting futex: Add mutex around futex exit futex: Provide state handling for exec() as well futex: Sanitize exit state handling futex: Mark the begin of futex exit explicitly futex: Set task::futex_state to DEAD right after handling futex exit futex: Split futex_mm_release() for exit/exec exit/exec: Seperate mm_release() futex: Replace PF_EXITPIDONE with a state futex: Move futex exit handling into futex code y2038: futex: Move compat implementation into futex.c mt7601u: fix rx buffer refcounting mt7601u: fix kernel crash unplugging the device KVM: x86/pmu: Fix HW_REF_CPU_CYCLES event pseudo-encoding in intel_arch_events[] net: usb: qmi_wwan: added support for Thales Cinterion PLSx3 modem family wext: fix NULL-ptr-dereference with cfg80211's lack of commit() ACPI: sysfs: Prefer "compatible" modalias Conflicts: kernel/exit.c Change-Id: I3b1284150c424ac3c26810f7de88acc16b5b4b60 |
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Greg Kroah-Hartman
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0566f6529a |
Merge 4.4.255 into android-4.4-p
Changes in 4.4.255 ACPI: sysfs: Prefer "compatible" modalias wext: fix NULL-ptr-dereference with cfg80211's lack of commit() net: usb: qmi_wwan: added support for Thales Cinterion PLSx3 modem family KVM: x86/pmu: Fix HW_REF_CPU_CYCLES event pseudo-encoding in intel_arch_events[] mt7601u: fix kernel crash unplugging the device mt7601u: fix rx buffer refcounting y2038: futex: Move compat implementation into futex.c futex: Move futex exit handling into futex code futex: Replace PF_EXITPIDONE with a state exit/exec: Seperate mm_release() futex: Split futex_mm_release() for exit/exec futex: Set task::futex_state to DEAD right after handling futex exit futex: Mark the begin of futex exit explicitly futex: Sanitize exit state handling futex: Provide state handling for exec() as well futex: Add mutex around futex exit futex: Provide distinct return value when owner is exiting futex: Prevent exit livelock ARM: imx: build suspend-imx6.S with arm instruction set netfilter: nft_dynset: add timeout extension to template xfrm: Fix oops in xfrm_replay_advance_bmp RDMA/cxgb4: Fix the reported max_recv_sge value mac80211: pause TX while changing interface type can: dev: prevent potential information leak in can_fill_info() iommu/vt-d: Gracefully handle DMAR units with no supported address widths iommu/vt-d: Don't dereference iommu_device if IOMMU_API is not built NFC: fix resource leak when target index is invalid NFC: fix possible resource leak Linux 4.4.255 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I33bac27670b3cd649e2c8c1ce42efff148f8f202 |
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Thomas Gleixner
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40da511f78 |
futex: Mark the begin of futex exit explicitly
commit 18f694385c4fd77a09851fd301236746ca83f3cb upstream. Instead of relying on PF_EXITING use an explicit state for the futex exit and set it in the futex exit function. This moves the smp barrier and the lock/unlock serialization into the futex code. As with the DEAD state this is restricted to the exit path as exec continues to use the same task struct. This allows to simplify that logic in a next step. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20191106224556.539409004@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Thomas Gleixner
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da81e2f3e1 |
futex: Set task::futex_state to DEAD right after handling futex exit
commit f24f22435dcc11389acc87e5586239c1819d217c upstream. Setting task::futex_state in do_exit() is rather arbitrarily placed for no reason. Move it into the futex code. Note, this is only done for the exit cleanup as the exec cleanup cannot set the state to FUTEX_STATE_DEAD because the task struct is still in active use. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20191106224556.439511191@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Thomas Gleixner
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93d2eb4077 |
exit/exec: Seperate mm_release()
commit 4610ba7ad877fafc0a25a30c6c82015304120426 upstream. mm_release() contains the futex exit handling. mm_release() is called from do_exit()->exit_mm() and from exec()->exec_mm(). In the exit_mm() case PF_EXITING and the futex state is updated. In the exec_mm() case these states are not touched. As the futex exit code needs further protections against exit races, this needs to be split into two functions. Preparatory only, no functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20191106224556.240518241@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Thomas Gleixner
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0838b8271a |
futex: Replace PF_EXITPIDONE with a state
commit 3d4775df0a89240f671861c6ab6e8d59af8e9e41 upstream. The futex exit handling relies on PF_ flags. That's suboptimal as it requires a smp_mb() and an ugly lock/unlock of the exiting tasks pi_lock in the middle of do_exit() to enforce the observability of PF_EXITING in the futex code. Add a futex_state member to task_struct and convert the PF_EXITPIDONE logic over to the new state. The PF_EXITING dependency will be cleaned up in a later step. This prepares for handling various futex exit issues later. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20191106224556.149449274@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Nathan Chancellor
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de02d35734 |
Merge 4.4.244 into android-msm-wahoo-4.4
Changes in 4.4.244: (64 commits)
ring-buffer: Fix recursion protection transitions between interrupt context
gfs2: Wake up when sd_glock_disposal becomes zero
mm: mempolicy: fix potential pte_unmap_unlock pte error
time: Prevent undefined behaviour in timespec64_to_ns()
btrfs: reschedule when cloning lots of extents
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: 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
Btrfs: fix missing error return if writeback for extent buffer never started
pinctrl: devicetree: Avoid taking direct reference to device name string
i40e: Wrong truncation from u16 to u8
i40e: Fix of memory leak and integer truncation in i40e_virtchnl.c
geneve: add transport ports in route lookup for geneve
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: check for live vs. read-only file system in gfs2_fitrim
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
iommu/amd: Increase interrupt remapping table limit to 512 entries
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()
usb: cdc-acm: Add DISABLE_ECHO for Renesas USB Download mode
mei: protect mei_cl_mtu from null dereference
ocfs2: initialize ip_next_orphan
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
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
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/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
ext4: fix leaking sysfs kobject after failed mount
Convert trailing spaces and periods in path components
Linux 4.4.244
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
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Greg Kroah-Hartman
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4e6c6e0085 |
Merge 4.4.244 into android-4.4-p
Changes in 4.4.244
ring-buffer: Fix recursion protection transitions between interrupt context
gfs2: Wake up when sd_glock_disposal becomes zero
mm: mempolicy: fix potential pte_unmap_unlock pte error
time: Prevent undefined behaviour in timespec64_to_ns()
btrfs: reschedule when cloning lots of extents
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: 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
Btrfs: fix missing error return if writeback for extent buffer never started
pinctrl: devicetree: Avoid taking direct reference to device name string
i40e: Wrong truncation from u16 to u8
i40e: Fix of memory leak and integer truncation in i40e_virtchnl.c
geneve: add transport ports in route lookup for geneve
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: check for live vs. read-only file system in gfs2_fitrim
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
iommu/amd: Increase interrupt remapping table limit to 512 entries
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()
usb: cdc-acm: Add DISABLE_ECHO for Renesas USB Download mode
mei: protect mei_cl_mtu from null dereference
ocfs2: initialize ip_next_orphan
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
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
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/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
ext4: fix leaking sysfs kobject after failed mount
Convert trailing spaces and periods in path components
Linux 4.4.244
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I70bf4c5ac9248a8ca3383b9b0c4871729606e75e
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||
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Al Viro
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55c181227c |
don't dump the threads that had been already exiting when zapped.
commit 77f6ab8b7768cf5e6bdd0e72499270a0671506ee upstream. Coredump logics needs to report not only the registers of the dumping thread, but (since 2.5.43) those of other threads getting killed. Doing that might require extra state saved on the stack in asm glue at kernel entry; signal delivery logics does that (we need to be able to save sigcontext there, at the very least) and so does seccomp. That covers all callers of do_coredump(). Secondary threads get hit with SIGKILL and caught as soon as they reach exit_mm(), which normally happens in signal delivery, so those are also fine most of the time. Unfortunately, it is possible to end up with secondary zapped when it has already entered exit(2) (or, worse yet, is oopsing). In those cases we reach exit_mm() when mm->core_state is already set, but the stack contents is not what we would have in signal delivery. At least on two architectures (alpha and m68k) it leads to infoleaks - we end up with a chunk of kernel stack written into coredump, with the contents consisting of normal C stack frames of the call chain leading to exit_mm() instead of the expected copy of userland registers. In case of alpha we leak 312 bytes of stack. Other architectures (including the regset-using ones) might have similar problems - the normal user of regsets is ptrace and the state of tracee at the time of such calls is special in the same way signal delivery is. Note that had the zapper gotten to the exiting thread slightly later, it wouldn't have been included into coredump anyway - we skip the threads that have already cleared their ->mm. So let's pretend that zapper always loses the race. IOW, have exit_mm() only insert into the dumper list if we'd gotten there from handling a fatal signal[*] As the result, the callers of do_exit() that have *not* gone through get_signal() are not seen by coredump logics as secondary threads. Which excludes voluntary exit()/oopsen/traps/etc. The dumper thread itself is unaffected by that, so seccomp is fine. [*] originally I intended to add a new flag in tsk->flags, but ebiederman pointed out that PF_SIGNALED is already doing just what we need. Cc: stable@vger.kernel.org Fixes: d89f3847def4 ("[PATCH] thread-aware coredumps, 2.5.43-C3") History-tree: https://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.git Acked-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Greg Kroah-Hartman
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a95e76973d |
Merge 4.4.173 into android-4.4-p
Changes in 4.4.173 net: Fix usage of pskb_trim_rcsum openvswitch: Avoid OOB read when parsing flow nlattrs net: ipv4: Fix memory leak in network namespace dismantle net_sched: refetch skb protocol for each filter net: bridge: Fix ethernet header pointer before check skb forwardable USB: serial: simple: add Motorola Tetra TPG2200 device id USB: serial: pl2303: add new PID to support PL2303TB ASoC: atom: fix a missing check of snd_pcm_lib_malloc_pages ARC: perf: map generic branches to correct hardware condition s390/early: improve machine detection s390/smp: fix CPU hotplug deadlock with CPU rescan char/mwave: fix potential Spectre v1 vulnerability staging: rtl8188eu: Add device code for D-Link DWA-121 rev B1 tty: Handle problem if line discipline does not have receive_buf tty/n_hdlc: fix __might_sleep warning CIFS: Fix possible hang during async MTU reads and writes Input: xpad - add support for SteelSeries Stratus Duo KVM: x86: Fix single-step debugging x86/kaslr: Fix incorrect i8254 outb() parameters can: dev: __can_get_echo_skb(): fix bogous check for non-existing skb by removing it can: bcm: check timer values before ktime conversion vt: invoke notifier on screen size change perf unwind: Unwind with libdw doesn't take symfs into account perf unwind: Take pgoff into account when reporting elf to libdwfl irqchip/gic-v3-its: Align PCI Multi-MSI allocation on their size arm64: mm: remove page_mapping check in __sync_icache_dcache f2fs: read page index before freeing Revert "loop: Fix double mutex_unlock(&loop_ctl_mutex) in loop_control_ioctl()" Revert "loop: Get rid of loop_index_mutex" Revert "loop: Fold __loop_release into loop_release" s390/smp: Fix calling smp_call_ipl_cpu() from ipl CPU fs: add the fsnotify call to vfs_iter_write ipv6: Consider sk_bound_dev_if when binding a socket to an address l2tp: copy 4 more bytes to linear part if necessary net/mlx4_core: Add masking for a few queries on HCA caps netrom: switch to sock timer API net/rose: fix NULL ax25_cb kernel panic ucc_geth: Reset BQL queue when stopping device l2tp: remove l2specific_len dependency in l2tp_core l2tp: fix reading optional fields of L2TPv3 CIFS: Do not count -ENODATA as failure for query directory fs/dcache: Fix incorrect nr_dentry_unused accounting in shrink_dcache_sb() ARM: cns3xxx: Fix writing to wrong PCI config registers after alignment arm64: hyp-stub: Forbid kprobing of the hyp-stub gfs2: Revert "Fix loop in gfs2_rbm_find" platform/x86: asus-nb-wmi: Map 0x35 to KEY_SCREENLOCK platform/x86: asus-nb-wmi: Drop mapping of 0x33 and 0x34 scan codes mmc: sdhci-iproc: handle mmc_of_parse() errors during probe kernel/exit.c: release ptraced tasks before zap_pid_ns_processes mm, oom: fix use-after-free in oom_kill_process cifs: Always resolve hostname before reconnecting drivers: core: Remove glue dirs from sysfs earlier mm: migrate: don't rely on __PageMovable() of newpage after unlocking it fs: don't scan the inode cache before SB_BORN is set Linux 4.4.173 Change-Id: Id606123657ad357fd2cd5f665a725f78b7c3e819 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> |
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Nathan Chancellor
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f011f6b824 |
Merge 4.4.173 into android-msm-wahoo-4.4
Changes in 4.4.173: (55 commits)
net: Fix usage of pskb_trim_rcsum
openvswitch: Avoid OOB read when parsing flow nlattrs
net: ipv4: Fix memory leak in network namespace dismantle
net_sched: refetch skb protocol for each filter
net: bridge: Fix ethernet header pointer before check skb forwardable
USB: serial: simple: add Motorola Tetra TPG2200 device id
USB: serial: pl2303: add new PID to support PL2303TB
ASoC: atom: fix a missing check of snd_pcm_lib_malloc_pages
ARC: perf: map generic branches to correct hardware condition
s390/early: improve machine detection
s390/smp: fix CPU hotplug deadlock with CPU rescan
char/mwave: fix potential Spectre v1 vulnerability
staging: rtl8188eu: Add device code for D-Link DWA-121 rev B1
tty: Handle problem if line discipline does not have receive_buf
tty/n_hdlc: fix __might_sleep warning
CIFS: Fix possible hang during async MTU reads and writes
Input: xpad - add support for SteelSeries Stratus Duo
KVM: x86: Fix single-step debugging
x86/kaslr: Fix incorrect i8254 outb() parameters
can: dev: __can_get_echo_skb(): fix bogous check for non-existing skb by removing it
can: bcm: check timer values before ktime conversion
vt: invoke notifier on screen size change
perf unwind: Unwind with libdw doesn't take symfs into account
perf unwind: Take pgoff into account when reporting elf to libdwfl
irqchip/gic-v3-its: Align PCI Multi-MSI allocation on their size
arm64: mm: remove page_mapping check in __sync_icache_dcache
f2fs: read page index before freeing
Revert "loop: Fix double mutex_unlock(&loop_ctl_mutex) in loop_control_ioctl()"
Revert "loop: Get rid of loop_index_mutex"
Revert "loop: Fold __loop_release into loop_release"
s390/smp: Fix calling smp_call_ipl_cpu() from ipl CPU
fs: add the fsnotify call to vfs_iter_write
ipv6: Consider sk_bound_dev_if when binding a socket to an address
l2tp: copy 4 more bytes to linear part if necessary
net/mlx4_core: Add masking for a few queries on HCA caps
netrom: switch to sock timer API
net/rose: fix NULL ax25_cb kernel panic
ucc_geth: Reset BQL queue when stopping device
l2tp: remove l2specific_len dependency in l2tp_core
l2tp: fix reading optional fields of L2TPv3
CIFS: Do not count -ENODATA as failure for query directory
fs/dcache: Fix incorrect nr_dentry_unused accounting in shrink_dcache_sb()
ARM: cns3xxx: Fix writing to wrong PCI config registers after alignment
arm64: hyp-stub: Forbid kprobing of the hyp-stub
gfs2: Revert "Fix loop in gfs2_rbm_find"
platform/x86: asus-nb-wmi: Map 0x35 to KEY_SCREENLOCK
platform/x86: asus-nb-wmi: Drop mapping of 0x33 and 0x34 scan codes
mmc: sdhci-iproc: handle mmc_of_parse() errors during probe
kernel/exit.c: release ptraced tasks before zap_pid_ns_processes
mm, oom: fix use-after-free in oom_kill_process
cifs: Always resolve hostname before reconnecting
drivers: core: Remove glue dirs from sysfs earlier
mm: migrate: don't rely on __PageMovable() of newpage after unlocking it
fs: don't scan the inode cache before SB_BORN is set
Linux 4.4.173
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Conflicts:
arch/arm64/mm/flush.c
mm/migrate.c
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Andrei Vagin
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e790eeabc4 |
kernel/exit.c: release ptraced tasks before zap_pid_ns_processes
commit 8fb335e078378c8426fabeed1ebee1fbf915690c upstream.
Currently, exit_ptrace() adds all ptraced tasks in a dead list, then
zap_pid_ns_processes() waits on all tasks in a current pidns, and only
then are tasks from the dead list released.
zap_pid_ns_processes() can get stuck on waiting tasks from the dead
list. In this case, we will have one unkillable process with one or
more dead children.
Thanks to Oleg for the advice to release tasks in find_child_reaper().
Link: http://lkml.kernel.org/r/20190110175200.12442-1-avagin@gmail.com
Fixes:
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Nathan Chancellor
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a204867e40 |
Merge tag 'android-9.0.0_r0.5' into android-msm-wahoo-4.4
Android 9.0.0 Release 0.5 (PPR1.180610.011,taimen/walleye)
* tag 'android-9.0.0_r0.5': (611 commits)
scsi: ufs: call single_release to avoid memory leak
kernel: initialize and free cpufreq stats properly
kernel: Fix massive cpufreq stats memory leaks
scsi: ufs: revise commit ecd2676bd513 ("disallow SECURITY_PROTOCOL_IN without _OUT")
FROMLIST: binder: fix proc->files use-after-free
Revert "Add timeout and panic when __scm_call_armv8_64 takes too long."
scsi: ufs: disallow SECURITY_PROTOCOL_IN without _OUT
qcacld-3.0: Fix potential buffer overflow in radio stats event handler
packet: in packet_do_bind, test fanout with bind_lock held
packet: hold bind lock when rebinding to fanout hook
qcacld-3.0: Fix OOB write in WMA TX power level stats handler
msm: mdss: Fix for wrong length in copy_to_user
fbdev: msm: check buffer size before writing to user buffer
qcacld-3.0: Add vdev_id sanity check in wma_vdev_stop_resp_handler
msm: sde: check buffer size before writing to user buffer
diag: Protect the decrement of number of diag clients
drivers: qcom: lpm-stats: Fix undefined access error
input: touch: ftm4: Fix length of memset() to avoid using uninitialized memory
input: touch: ftm4: Fix memory overflow
netfilter: ebtables: CONFIG_COMPAT: don't trust userland offsets
msm: camera: Fix for Possible information leak issue
ASoC: msm-lsm-client: use kzalloc instead of kmalloc
Revert "arch/arm64/wahoo_defconfig: enable DEADLINE I/O scheduler"
Wifi: Store unstripped wlan.ko image
Release 5.2.1.1J.1
qcacld-3.0: Enable support to send packet fate stats
Revert "serial: msm_serial_hs: Protect spurious irqs after wakeup irq enablement"
pinctrl: qcom: Add irq_enable callback for msm gpio
arm64: dts: taimen: Move DISPLAY_ON command to post-panel-on
Revert "qcom: scm: reduce the timeout to trigger panic from 10mins to 10s."
Revert "arm64/configs: wahoo: Enable RTB logging"
FROMLIST: arm64: vdso32: Use full path to Clang instead of relying on PATH
msm: ipa: rmnet: Make code changes with respect to CR#2046006
qcacld-3.0: Not to be hard to make high order page
arm64/configs: wahoo: Enable RTB logging
qcom: scm: reduce the timeout to trigger panic from 10mins to 10s.
Release 5.2.1.1J
qcacld-3.0: Fix race condition in resetting vdev and using it
qcacld-3.0: Acquire SME lock before csr_roam_offload_scan from SME
qcacld-3.0: Call vdev resp and hold req queue cleanup from MC thread
qcacmn: Fix debugfs issue for DPTRACE
tcpm: Ignore CC and vbus changes in PORT_RESET change
arm64: dts: taimen-pm: set LOW_BATT_THRESHOLD to 2.7V
smb-lib: add DT to set BATIF_LOW_BATT_THRESHOLD
arm64: dts: taimen: set low voltage thresholds
msm: mdss: read status register in case of error detection
msm: mdss: add post panel on command debug node
msm-dwc3: Add debug logs around suspend/resume
BACKPORT: irq: Make the irqentry text section unconditional
UPSTREAM: kasan: make get_wild_bug_type() static
UPSTREAM: kasan: separate report parts by empty lines
UPSTREAM: kasan: improve double-free report format
UPSTREAM: kasan: print page description after stacks
UPSTREAM: kasan: improve slab object description
UPSTREAM: kasan: change report header
UPSTREAM: kasan: simplify address description logic
UPSTREAM: kasan: change allocation and freeing stack traces headers
UPSTREAM: kasan: unify report headers
UPSTREAM: kasan: introduce helper functions for determining bug type
BACKPORT: kasan: report only the first error by default
UPSTREAM: kasan: fix races in quarantine_remove_cache()
UPSTREAM: kasan: resched in quarantine_remove_cache()
BACKPORT: kasan, sched/headers: Uninline kasan_enable/disable_current()
BACKPORT: kasan: drain quarantine of memcg slab objects
UPSTREAM: x86/suspend: fix false positive KASAN warning on suspend/resume
UPSTREAM: kasan: support use-after-scope detection
UPSTREAM: kasan/tests: add tests for user memory access functions
UPSTREAM: mm, kasan: add a ksize() test
BACKPORT: kprobes: Unpoison stack in jprobe_return() for KASAN
UPSTREAM: arm64: setup: introduce kaslr_offset()
UPSTREAM: kcov: fix comparison callback signature
UPSTREAM: kcov: support comparison operands collection
UPSTREAM: kcov: remove pointless current != NULL check
UPSTREAM: kcov: support compat processes
UPSTREAM: kcov: simplify interrupt check
UPSTREAM: kcov: make kcov work properly with KASLR enabled
UPSTREAM: kcov: add more missing includes
UPSTREAM: kcov: add missing #include <linux/sched.h>
UPSTREAM: kcov: properly check if we are in an interrupt
UPSTREAM: kcov: don't profile branches in kcov
UPSTREAM: kcov: don't trace the code coverage code
Add timeout and panic when __scm_call_armv8_64 takes too long.
Release 5.2.1.1I.1
qcacld-3.0: Ignore the csa event when roaming is in progress
htc_battery: Add Vbus output status in log
smb-lib: Export Vbus output status
power_supply: Add property of OTG status
scsi: ufs: disable clock scaling
Release 5.2.1.1I
qcacld-3.0: Revive the WoW wakeup logs to appear in kmsg
qcacld-3.0: Log netdev tx queue state at user triggered disconnect
qcacld-3.0: Don't fill any WMA request if target is not ready
msm: adsprpc: Use unsigned integer for length values
FROMLIST: ARM: amba: Fix race condition with driver_override
msm: sensor: ois: add conditional check for ioctl
drivers: cpuidle: lpm-levels: Fix untrusted pointer dereference.
ASoC: msm: check payload size before memory allocation
UPSTREAM: scsi: sg: don't return bogus Sg_requests
netfilter: add back stackpointer size checks
qcacld-3.0: Fix integer underflow and buffer over-read in fwlog
ASoC: msm: qdsp6v2: check for buffer size before read
usb: gadget: f_hid: fix: Prevent accessing released memory
usb: gadget: define free_ep_req as universal function
[BACKPORT] xfrm_user: fix return value from xfrm_user_rcv_msg
soc: qcom: fix race condition while freeing private data
msm: vidc: Addition of enums for HLG and HDR10
defconfig: arm64: Enable UFSHCD_CMD_LOGGING flag
scsi: ufs: Fix compilation error in ufs cmd logging
scsi: ufs: add support for logging custom events
scsi: ufs: fix the UFS command tracing events
scsi: ufs: update ufs command logging infrastructure
scsi: ufs: add command logging infrastructure
power: qpnp-fg-gen3: make CHARGE_FULL property writable by user
Revert "USB: set hub's default autosuspend delay as 0"
Revert "usb: hub: Prevent hub autosuspend if usbcore.autosuspend is -1"
msm: ipa: Fix to handle NULL pointer dereference
msm: ipa: Prevent deletion of the default route rule
msm: ipa: Fix to add string NULL terminator
msm: ipa: dynamic memory leak fix
msm: ipa: dynamic memory leak fix
msm: ipa: return the wifi stats when reset is set
msm: ipa: Return error -ENODEV for set data quota failure
msm: ipa: Change error value for set quota
msm: ipa: Fix to validate routing table index for filter exception
msm:ipa: Fix to slab out of bounds access
msm: ipa3: Fix IPA aggregation force close call
msm: ipa: ipa_usb: teth_prot and ttype validation
msm: ipa: Fix to use after free issue
msm: ipa: fix ipacm_client usage
msm: ipa3: Verify IPA client id before using it
msm: ipa3: Protect access to ipa3_qmi_ctx variable by lock
msm: ipa: using rate limit api for ioctl calls
msm: ipa: Fix to IPA static analysis constant null deferenced
msm: ipa: Fix to use GFP_DMA and add check for dma_map_single
Release 5.2.1.1H.1
qcacld-3.0: update the adapter->rssi from fw
qcacld-3.0: Fix null pointer dereference in sending probe req
Release 5.2.1.1H
qcacld-3.0: Fix OOB write in wma_extscan_change_results_event_handler
qcacld-3.0: Fix Use after free in wma_del_tdls_sta
qcacld-3.0: Fix race vdev down and tx_desc->vdev access
qcacld-3.0: Fix race vdev down and tx_desc->vdev access
qcacld-3.0: Fix OOB write in wma_unified_debug_print_event_handler
qcacld-3.0: Probe request sent with corrupted IE
qcacmn: Validate nbuf in dp trace function
qcacmn: Check for TSO packet in release_skb
build.config: enforce trace_printk check
msm: mdss: improve performance coming out of idle pc
Revert "qcacld-3.0: Treat ARP/ICMP/ICMPV6 packets as high priority"
pd_engine: Add support for TYPEC_CC_RP_1_5
tcpm: set rp tp 1.5A once PD contract is negotiated
smb-lib: Add support for POWER_SUPPLY_TYPEC_PR_SOURCE_1_5
qcacld-3.0: Enable wiphy RxLDPC for 5G band
Release 5.2.1.1G
qcacld-3.0: Enable ct tracker for external ctrl mode after tdls link enable
qcacld-3.0: Hold wakelock till connection completion
qcacld-3.0: Reset txrx connectivity stats after SSR
qcacld-3.0: Prevent access to rx thread after thread shutdown
qcacld-3.0: Flush packets in datapath error case
qcacld-3.0: Remove CSR dot11f IE RSN max len
qcacld-3.0: Fix OOB write in wma_unified_debug_print_event_handler
qcacld-3.0: Return -EGAIAN and not -ENODEV if FW is down
qcacld-3.0: Fix check condition after taking lock
qcacld-3.0: Fix OOB write in wma_roam_synch_event_handler
qcacld-3.0: Fix issue in connection to WAPI AP
ASoC: msm: qdsp6v2: Add volume control for capture streams
cpufreq: stats: use seq iterator for large uid-related files
cpufreq: stats: update uid data in acct_update_power
htc_battery: Control stop/start charge level by charging_disabled
proc: add null check in proc_uid_init
Release 5.2.1.1E
qcacld-3.0: Remove duplicate block of code due to auto merge
qcacld-3.0: Reset is_acs_allowed variable when chan count is 0
qcacld-3.0: Avoid double free in drv_cmd_get_ibss_peer_info_all()
qcacld-3.0: Fail channel sap channel change request for channel 0
qcacld-3.0: Fix buf overflow in __wlan_hdd_cfg80211_update_connect_params
icnss: Consider recovery as FW down
usb: pd_engine: Turn off Vbus and Vconn during shutdown
VTS: Fix test for supplicant deprecated commands
Revert "xhci: plat: Register shutdown for xhci_plat"
Revert "f_fs: set maxburst to one before enabling endpoints"
dwc3: resize txfifo of IN/INT endpoint before enabling it
scsi: ufs: Avoid dead lock during error recovery
power: qcom/bcl_peripheral: fix READ_OPTIONAL_PROP
icnss: Avoid wlan driver remove during modem graceful shutdown
lge_battery: add parameters to control stop/start charge level
ext4: handle errors on ext4_commit_super
qcacld-3.0: WLAN upgrade to 5.2.1.1D
arm64: dts: Add tcpc configs for taimen
usb: to recognize vbus_present from attribute "present"
Revert "Revert "f_fs: set maxburst to one before enabling endpoints""
Revert "ANDROID: usb: gadget: accessory: Lower protocol version"
qcacld-3.0: WLAN upgrade to 5.2.1.1C.1
qcacld-3.0: Fix issue while handling ndp response without iface name
726b68f Release 5.2.1.1C
arm64: wahoo_defconfig: set CONFIG_QCA_CLD_WLAN=m
ANDROID: usb: gadget: accessory: Lower protocol version
usb: typec: Import tcpc configs from device tree
arm64: dts: Add tcpc configs for walleye
dt-bindings: usb: Add typec bindings
Revert "f_fs: set maxburst to one before enabling endpoints"
staging: bcm15602: use async probe
init/main.c: add sync point between each level
Revert "Revert "select: use freezable blocking call""
input: misc: stmvl53L0: use async probe
arm64:configs:wahoo: disable CONFIG_QPNP_FG_GEN3_LEGACY_CYCLE_COUNT
qpnp: fg+smb-lib: implement Linux cycle count
htc_battery: add parameters to control stop/start charge level
misc: mnh: use async probe
FROMLIST: ALSA: usb-audio: fix memory leak on cval
ALSA: usb-audio: fix error in backport
qpnp-fg-gen3: add cycle_counts_bins device driver attribute
qcacld-3.0: WLAN upgrade to 5.2.1.1B
qcacld-3.0: WLAN upgrade to 5.2.1.1A
BACKPORT: ALSA: usb-audio: UAC2 jack detection
BACKPORT: ALSA: usb-audio: fix uac control query argument
scsi: ufs: Add discard command support to ufs debugfs req. stats
scsi: ufs: Adding io_stats to UFS debugfs
blkdev: Refactoring block io latency histogram codes
msm: wlan: Update regulatory database
msm: wlan: Update regulatory database
msm: wlan: Update regulatory database
ANDROID: initramfs: call free_initrd() when skipping init
pd_engine:Notify smblib when no suspend is allowed
typec: PD: Add callback to support no usb suspend
smb-lib: support separate current settings from usb and pd
arm64: dts: msm8998-htc-common: set imem-restart_info
reset/msm-poweroff: setting reboot message
qcacld-3.0: WLAN upgrade to 5.1.1.47F.2
qcacld-3.0: Validate opmode update req before sending to FW
scsi: ufs: fix req_stats debugfs entry
gower: smb138x-charger: changed buck freq from 700 to 900 kHz
power: smb-lib: Skip enable DRP when chg->typec_pr_disabled is true
Revert "msm: ipc_logging: Disable ipc_log_string"
BACKPORT: mm, procfs: breakdown RSS for anon, shmem and file in /proc/pid/status
BACKPORT: mm, shmem: add internal shmem resident memory accounting
power/supply qpnp-smb2: remove POWER_SUPPLY_PROP_PORT_TEMP
net: replace dst_cache ip6_tunnel implementation with the generic one
Make DST_CACHE a silent config option
net: add dst_cache support
scsi: ufs: fix wrong order for slow io
scsi: ufs: ufs-qcom-ice: Initialize local variable in ice_cfg_start()
scsi: ufs: Serialise ufs clock gating and ungating
scsi: ufs: Add UFS slow I/O monitoring.
Revert "qcacld-3.0: Fix potential OOB read in dot11f.c"
Revert "qcacld-3.0: Check the length of IE's before appending"
Revert "qcacld-3.0: Check ie_len against 255 in function get_container_ies_len"
msm: mdss: set err detect irq to disable on init
msm: ADSPRPC: Change SSC VMID from 5 to 38
Disable kASLR for KASAN builds.
msm: ipc_logging: Disable ipc_log_string
UPSTREAM: block: silently forbid sending any ioctl to a partition
Revert "Revert "qcacld-3.0: WLAN upgrade to 5.1.1.47F.1""
arm64: dts: lge: taimen: max touch coordinates
thermal: qcom: tracing: add clock_set_rate tracing for lmh
arm64: dts: taimen: To avoid AOD blinking issues, changed some related commands
Revert "soc: qcom: glink: Move ctx initialization of xprt ptr"
Revert "soc: qcom: glink: Move tx_info allocation in beginning"
Revert "soc: qcom: glink: Move get reference to valid location"
Revert "soc: qcom: initialize glink link state"
Revert "soc: qcom: avoid calling sleeping functions in interrupt context"
Revert "qcacld-3.0: WLAN upgrade to 5.1.1.47F.1"
Revert "qcacld-3.0: Check for SRD channels in sap_get_channel_list"
Revert "qcacld-3.0: Update bss count based on channel offset only for same band"
Revert "qcacld-3.0: Trim ACS channel list based on the concurrent connections"
Revert "qcacld-3.0: Avoid 2.4Ghz channel in 40Mhz for SAP start"
Revert "qcacld-3.0: WLAN upgrade to 5.1.1.47F.2"
Revert "qcacld-3.0: Treat ARP/ICMP/ICMPV6 packets as high priority"
arch/arm64/wahoo_defconfig: set default readahead to 2048KB
ANDROID: mm: add config for default readahead size
power: lge_battery: Enable bm_check_therm_charging when not charging
Revert "arm64: dts: taimen: set fg-empty-voltage to 3.2V"
Revert "arm64: dts: walleye: set fg-empty-voltage to 3.2V"
Revert "arm64: dts: taimen: set fg-empty-voltage to 3.2V"
Revert "arm64: dts: walleye: set fg-empty-voltage to 3.2V"
Revert "arm64: dts: taimen: lower FG empty and cutoff voltages"
Revert "arm64: dts: taimen: set vbat-too-low-threshold to 2.8V"
scsi: ufs: fix wrong pointer for enabled latency_hist
misc: mnh-ddr: Allocate memory for driver once
scsi: ufs: nullify lrbp->cmd inside of valid tag period
arch/arm64/wahoo_defconfig: enable DEADLINE I/O scheduler
qcacld-3.0: Treat ARP/ICMP/ICMPV6 packets as high priority
qcacld-3.0: WLAN upgrade to 5.1.1.47F.2
qcacld-3.0: Avoid 2.4Ghz channel in 40Mhz for SAP start
qcacld-3.0: Trim ACS channel list based on the concurrent connections
qcacld-3.0: Update bss count based on channel offset only for same band
qcacld-3.0: Check for SRD channels in sap_get_channel_list
qcacld-3.0: WLAN upgrade to 5.1.1.47F.1
soc: qcom: avoid calling sleeping functions in interrupt context
soc: qcom: initialize glink link state
soc: qcom: glink: Move get reference to valid location
soc: qcom: glink: Move tx_info allocation in beginning
soc: qcom: glink: Move ctx initialization of xprt ptr
ANDROID: usb: gadget: f_accessory: Also zero out rx_req on unbind
soc: qcom: service-locator: Update incorrect usage of qmi_send_req_wait
soc: qcom: service-locator: Fix error message prints for receiving messages
ANDROID: usb: gadget: f_accessory: Fix double-free
msm: ipa3: add lock for num_q6_rule
msm: ipa: fix security issues in ipa wan driver
nl80211: Define policy for packet pattern attributes
netlink: Add netns check on taps
qcacld-3.0: Add sanity check for vdev_id in wma_wow_wakeup_host_event
qcacld-3.0: Add sanity check for vdev id to prevent OOB access
qcacld-3.0: Calculate buf_len properly for extscan hotlist event buffer
msm: ipa: add null terminator
misc: mnh: mipi: change variable type to check for error
qcacld-3.0: Validate packet length, before processing PTT commands
qcacld-3.0: Use after free in hdd_debugfs_stats_update api
qcacld-3.0: Fix potential OOB read in dot11f.c
BACKPORT: USB: core: harden cdc_parse_cdc_header
PCI: Fix race condition with driver_override
qcacld-3.0: Fix potential buffer overwrite in wma_unified_link_iface_stats_event_handler
FROMGIT: soc: qcom: initialize glink link state
qcacld-3.0: Check the length of IE's before appending
UPSTREAM: KEYS: encrypted: fix buffer overread in valid_master_desc()
UPSTREAM: net: ipv4: fix for a race condition in raw_sendmsg
qcacld-3.0: Add sanity check in wma_process_rmf_frame
diag: dci: Add validity check for dci client's process descriptor
qcacld-3.0: Add sanity check for num_hw_modes and num_phy
qcacld-3.0: WLAN upgrade to 5.1.1.44V.4
qcacld-3.0: Enhance logging levels for some SAP ACS messages
qcacld-3.0: Do 11ac override only if channel list has 5Ghz channel(s)
qcacld-3.0: Assign acs_cfg->end_ch before use
qcacld-3.0: Avoid selection of irrelevant channel in 80/160MHz config
qcacld-3.0: Set ACS weight to max for channels not in scan list
qcacld-3.0: Fix an ACS hw mode mapping discrepancy
qcacld-3.0: Check for valid vdev ID in SWBA event handler
ASoC: apr: Add validity check to APR port
msm: ipa: Fix the handling of default IPA header
qcacld-3.0: Fix buffer overread in wma_extscan_hotlist_match_event_handler
qcacld-3.0: Remove unused function proc_set_req_internal
qcacld-3.0: Fix potential buffer overflow in htt_t2h_lp_msg_handler
qcacld-3.0: Fix potential buffer overflow in ol_rx_flush_handler
qcacld-3.0: Fix buffer overflow in wma radio_tx_power_level_stats handler
qcacld-3.0: Fix potential buffer overflow in process_tx_info
ANDROID: usb: gadget: f_accessory: Increase buffer size and max burst
Revert "arm64: dts: taimen: To avoid AOD flickering, changed AOD in/out init.code"
qcacld-3.0: Check ie_len against 255 in function get_container_ies_len
arm64: dts: taimen: To avoid AOD flickering, changed AOD in/out init.code
msm: wlan: Remove channel 14 from Japan
ANDROID: cpufreq: change uid_cpupower to use u32
qcacld-3.0: Support NDP Confirm with channel info and Schedule Update
UPSTREAM: ext4: don't allow encrypted operations without keys
UPSTREAM: typec: tcpm: Only request matching pdos
UPSTREAM: typec: tcpm: Validate source and sink caps
ANDROID: sdcardfs: Protect set_top
ANDROID: fsnotify: Notify lower fs of open
Revert "ANDROID: sdcardfs: notify lower file of opens"
ANDROID: sdcardfs: Use lower getattr times/size
qcacld-3.0: WLAN upgrade to 5.1.1.44V.3
qcacld-3.0: Validate CSA WBW IE before processing channel switch
Revert "arm64/configs: wahoo: remove CONFIG_IPC_LOGGING"
nl80211: Add the missing nl80211 enums
Revert "scsi: ufs: Change power mode on line reset"
Revert "Revert "scsi: ufs: disable auto hibern8""
KEYS: prevent KEYCTL_READ on negative key
hrtimer: Reset hrtimer cpu base proper on CPU hotplug
qcacld-3.0: WLAN upgrade to 5.1.1.44V.2
qcacld-3.0: Avoid panic during HDD resume failure if FW is down
qcacld-3.0: WLAN upgrade to 5.1.1.44V.1
qcacld-3.0: Send per chain rssi to upper layer
qcacld-3.0: Modify dwell time and DBS scan based on scan request
qcacmn: Send per chain rssi to upper layer
qcacld-3.0: Add support for HW mode info vendor command
nl80211: Introduce scan flags to emphasize requested scan behavior
cfg80211: Scan results to also report the per chain signal strength
qcacld-3.0: WLAN upgrade to 5.1.1.44V
msm: wlan: Remove DSRC channels from US reg-domain
icnss: Update icnss platform driver
USB: fix buffer overflows with parsing CDC headers
scsi/ufs: use 16 queue depth for Samsung UFS part
BACKPORT: USB: core: harden cdc_parse_cdc_header
ANDROID: clock_gettime(CLOCK_BOOTTIME,) slows down >20x
qcacld-3.0: Update host driver version to 5.1.1.41W.1
Revert "scsi: ufs: disable auto hibern8"
qcacld-3.0: Trim the ACS scan channel list as per acs config
ANDROID: xattr: Pass EOPNOTSUPP to permission2
STOPSHIP: ANDROID: cpufreq: concurrent_*_time P/H experiment
ANDROID: cpufreq: Remove seq_printf from critical path
ANDROID: sdcardfs: Move default_normal to superblock
qcacld-3.0: Check the channel width value in CSA processing
arm64: dts: htc: usb-xa: Lower USB-C temp and hysteresis thresholds
arm64: dts: lge: Lower USB-C temp and hysteresis thresholds
wlan_mac: Change from icnss to cnss_utils api
cnss_utils: Zero out cnss_utils priv structure during initialization
cnss_utils: Add support for derived MAC address
cnss_utils: Add support of cnss_utils for WLAN
arm64: dts: taimen: lower FG empty and cutoff voltages
arm64: dts: taimen: set vbat-too-low-threshold to 2.8V
power: qcom: bcl_peripheral: allow setting vbat-too-low from DT
msm: bus_arb: disable debug logging
arm64/configs: wahoo: remove CONFIG_IPC_LOGGING
input: touchscreen: stm: enable touch after unblank
Add VTI support to Wahoo Kernel
arm64: dts: taimen: set fg-empty-voltage to 3.2V
arm64: dts: walleye: set fg-empty-voltage to 3.2V
power: lge-battery: remove debugging FG log message
qcacld-3.0: WLAN upgrade to 5.1.1.41W
wireless: wlan: Remove DSRC channels from ETSI countries
soc: qcom: ssr: Remove ramdump enabled limitation for crash_reason
STOPSHIP: ANDROID: vdso: add disable switch for experiments
ANDROID: wahoo: turn on VDSO
ANDROID: arm64: vdso32: fix CC=clang build
ANDROID: wahoo: add CROSS_COMPILE_ARM32 to build configs
ANDROID: CROSS_COMPILE_ARM32 must work if CONFIG_COMPAT_VDSO
FROMLIST: BACKPORT: [PATCH 6/6] arm64: Wire up and expose the new compat vDSO
FROMLIST: BACKPORT: [PATCH 5/6] arm64: compat: 32-bit vDSO setup
FROMLIST: [PATCH 4/6] arm64: compat: Add a 32-bit vDSO
FROMLIST: [PATCH 3/6] arm64: Refactor vDSO init/setup
FROMLIST: [PATCH 2/6] arm64: elf: Set AT_SYSINFO_EHDR in compat processes
FROMLIST: [PATCH 1/6] arm64: compat: Use vDSO sigreturn trampolines if available
FROMLIST: lib: vdso: add support for time
FROMLIST: [PATCH] arm64: compat: Expose offset to registers in sigframes
FROMLIST: [PATCH v5 12/12] lib: vdso: do not expose gettimeofday, if no arch supported timer
FROMLIST: [PATCH v5 11/12] lib: vdso: Add support for CLOCK_BOOTTIME
FROMLIST: [PATCH v5 10/12] arm64: vdso: replace gettimeofday.S with global vgettimeofday.C
FROMLIST: [PATCH v5 09/12] arm: vdso: move vgettimeofday.c to lib/vdso/
FROMLIST: [PATCH v5 08/12] arm: vdso: Add ARCH_CLOCK_FIXED_MASK
FROMLIST: [PATCH v5 07/12] arm: vdso: disable profiling
FROMLIST: [PATCH v5 06/12] arm: vdso: add support for clock_getres
FROMLIST: [PATCH v6 05/12] arm: vdso: Add support for CLOCK_MONOTONIC_RAW
FROMLIST: [PATCH v5 04/12] arm: vdso: do calculations outside reader loops
FROMLIST: [PATCH v5 03/12] arm: vdso: inline assembler operations to compiler.h
FROMLIST: [PATCH v5 02/12] arm: vdso: add include file defining __get_datapage()
FROMLIST: [PATCH v5 01/12] arm: vdso: rename vdso_datapage variables
FROMLIST: [PATCH v2 3/3] arm64: compat: Add CONFIG_KUSER_HELPERS
FROMLIST: [PATCH v2 2/3] arm64: compat: Split the sigreturn trampolines and kuser helpers (assembler sources)
FROMLIST: [PATCH v2 1/3] arm64: compat: Split the sigreturn trampolines and kuser helpers (C sources)
msm: ipc_logging: fix missing header
ANDROID: sdcardfs: Fix missing break on default_normal
mm: skip swap readahead when process is exiting
ANDROID: sdcardfs: Add default_normal option
ANDROID: sdcardfs: notify lower file of opens
UPSTREAM: net: xfrm: allow clearing socket xfrm policies.
qcacld-3.0: wlan driver upgrade to 5.1.1.38X
diag: Add timer to make sure wakelock no stuck
misc: mnh: fix pcie suspend sequence for power down from suspend
misc: mnh: prevent double ready irq disables
ANDROID: cpufreq: update conditions for recording cputime
BACKPORT: arm64: Use __pa_symbol for empty_zero_page
BACKPORT: arm64: Use __pa_symbol for kernel symbols
UPSTREAM: mm: Introduce lm_alias
BACKPORT: time: Clean up CLOCK_MONOTONIC_RAW time handling
BACKPORT: time: Fix CLOCK_MONOTONIC_RAW sub-nanosecond accounting
UPSTREAM: arm64: compat: Remove leftover variable declaration
UPSTREAM: arm64: vdso: constify vm_special_mapping used for aarch32 vectors page
UPSTREAM: arm64: vdso: add __init section marker to alloc_vectors_page
UPSTREAM: ARM: 8597/1: VDSO: put RO and RO after init objects into proper sections
UPSTREAM: arm64: Add support for CLOCK_MONOTONIC_RAW in clock_gettime() vDSO
UPSTREAM: arm64: Refactor vDSO time functions
UPSTREAM: arm64: fix vdso-offsets.h dependency
UPSTREAM: kbuild: drop FORCE from PHONY targets
UPSTREAM: mm: add PHYS_PFN, use it in __phys_to_pfn()
UPSTREAM: ARM: 8476/1: VDSO: use PTR_ERR_OR_ZERO for vma check
Revert "soc: qcom: pil: Dump whole subsystem region"
misc: mnh: Free firmware buf on download failure
Revert "arm64: dts: taimen: add delay after sleep out and post panel on cmd"
ANDROID: cpufreq: uid_concurrent_policy_time
ANDROID: cpufreq: uid_concurrent_active_time
ANDROID: cpufreq: concurrent_policy_time by pid
ANDROID: cpufreq: concurrent_active_time by pid
PM: wakeup_reasons: Fix formatting for printk
ufs: show ufs part info in error case
msm: mdss: ensure mdp transfer before post panel on commands
spmi-pmic-arb: add support to dispatch interrupt based on IRQ status
input: ftm4: sync only between repeated touch events
msm: kgsl: Stop slab shrinker when no more pages can be reclaimed
UPSTREAM: arm64: vdso: fix clock_getres for 4GiB-aligned res
build.config.clang.lto: fix LD_LIBRARY_PATH
soc: qcom: pil: Dump whole subsystem region
easelcomm: Avoid retries when sending wrap marker
FROMLIST: arm64: Avoid aligning normal memory pointers in __memcpy_{to,from}io
misc: easelcomm: Convert service spinlock to mutex
msm: mdss: enable err_detect irq after post panel on
misc: easelcomm: Fix signed and unsigned comparison
drv2624: use regmap_write_bit() for updating bits for volatile registers
genirq: Add generic action name for chained IRQs
input: touchscreen: stm: add decoding for additional events
clk: msm: clock-gpu-8998: Remove 180MHz perf level for gfx3d clock
arm64: configs: wahoo: enable MNH_PCIE_MULTIPLE_MSI
misc: mnh: pcie: fix compile error for multiple msi config
pci: msm: add support for multiple msi interrupts
ANDROID: Revert "arm64: move ELF_ET_DYN_BASE to 4GB / 4MB"
sched: rate-limit sched_timing printk
usb: gadget: f_fs: Fix sleeping while atomic in ffs_epfile_io
power: Adjust learned capacity max decrement to 0.5%
arm64: dtbo: muskie: Remove muskie dtbo from build
ANDROID: cpufreq: Add time_in_state to /proc/uid directories
ANDROID: proc: Add /proc/uid directory
input: misc: Fixed LDAF PerformRefSpadManagement
soc: qcom: glink: Add downvote of transport during SSR
input: touchscreen: stm: faster touch i2c reads
ANDROID: binder: show high watermark of alloc->pages.
ANDROID: binder: Add thread->process_todo flag.
qpnp-fg-gen3: Move getting battery id and profile to profile_load_work
input: ftm4: reflash firmware when config or cx is corrupt
diag: Flush control workqueue immediately on channel close
BACKPORT: xfrm: Clear sk_dst_cache when applying per-socket policy.
msm: vidc: Fix issue with regulator node reordering
staging: bcm15602: add vsel sysfs for all bcm15602 rails
...
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Conflicts:
arch/arm/include/asm/kvm_arm.h
arch/arm64/boot/dts/lge/dsi-panel-sw43402-dsc-qhd-cmd.dtsi
arch/x86/include/asm/thread_info.h
arch/x86/kernel/kprobes/core.c
drivers/gpu/drm/msm/msm_gem_submit.c
drivers/md/dm-bufio.c
drivers/media/v4l2-core/v4l2-compat-ioctl32.c
drivers/mmc/core/bus.c
drivers/net/wireless/iwlwifi/iwl-nvm-parse.c
include/linux/compiler-clang.h
kernel/time/timekeeping.c
net/bridge/netfilter/ebtables.c
net/core/dst_cache.c
net/ipv4/raw.c
net/xfrm/xfrm_state.c
sound/usb/card.c
sound/usb/mixer.c
|
||
|
Sultan Alsawaf
|
1b37d68f4c |
ANDROID: Fix massive cpufreq_times memory leaks
Every time _cpu_up() is called for a CPU, idle_thread_get() is called which then re-initializes a CPU's idle thread that was already previously created and cached in a global variable in smpboot.c. idle_thread_get() calls init_idle() which then calls __sched_fork(). __sched_fork() is where cpufreq_task_times_init() is, and cpufreq_task_times_init() allocates memory for the task struct's time_in_state array. Since idle_thread_get() reuses a task struct instance that was already previously created, this means that every time it calls init_idle(), cpufreq_task_times_init() allocates this array again and overwrites the existing allocation that the idle thread already had. This causes memory to be leaked every time a CPU is onlined. In order to fix this, move allocation of time_in_state into _do_fork to avoid allocating it at all for idle threads. The cpufreq times interface is intended to be used for tracking userspace tasks, so we can safely remove it from the kernel's idle threads without killing any functionality. But that's not all! Task structs can be freed outside of release_task(), which creates another memory leak because a task struct can be freed without having its cpufreq times allocation freed. To fix this, free the cpufreq times allocation at the same time that task struct allocations are freed, in free_task(). Since free_task() can also be called in error paths of copy_process() after dup_task_struct(), set time_in_state to NULL immediately after calling dup_task_struct() to avoid possible double free. Bug description and fix adapted from patch submitted by Sultan Alsawaf <sultanxda@gmail.com> at https://android-review.googlesource.com/c/kernel/msm/+/700134 Bug: 110044919 Test: Hikey960 builds, boots & reports /proc/<pid>/time_in_state correctly Change-Id: I12fe7611fc88eb7f6c39f8f7629ad27b6ec4722c Signed-off-by: Connor O'Brien <connoro@google.com> |
||
|
Connor O'Brien
|
e950331719 |
ANDROID: Reduce use of #ifdef CONFIG_CPU_FREQ_TIMES
Add empty versions of functions to cpufreq_times.h to cut down on use of #ifdef in .c files. Test: kernel builds with and without CONFIG_CPU_FREQ_TIMES=y Change-Id: I49ac364fac3d42bba0ca1801e23b15081094fb12 Signed-off-by: Connor O'Brien <connoro@google.com> |
||
|
Nathan Chancellor
|
3c93a9b8d3 |
Merge 4.4.133 into android-msm-wahoo-4.4
Changes in 4.4.133: (92 commits)
8139too: Use disable_irq_nosync() in rtl8139_poll_controller()
bridge: check iface upper dev when setting master via ioctl
dccp: fix tasklet usage
ipv4: fix memory leaks in udp_sendmsg, ping_v4_sendmsg
llc: better deal with too small mtu
net: ethernet: sun: niu set correct packet size in skb
net/mlx4_en: Verify coalescing parameters are in range
net_sched: fq: take care of throttled flows before reuse
net: support compat 64-bit time in {s,g}etsockopt
openvswitch: Don't swap table in nlattr_set() after OVS_ATTR_NESTED is found
qmi_wwan: do not steal interfaces from class drivers
r8169: fix powering up RTL8168h
sctp: handle two v4 addrs comparison in sctp_inet6_cmp_addr
sctp: use the old asoc when making the cookie-ack chunk in dupcook_d
tg3: Fix vunmap() BUG_ON() triggered from tg3_free_consistent().
bonding: do not allow rlb updates to invalid mac
tcp: ignore Fast Open on repair mode
sctp: fix the issue that the cookie-ack with auth can't get processed
sctp: delay the authentication for the duplicated cookie-echo chunk
ALSA: timer: Call notifier in the same spinlock
audit: move calcs after alloc and check when logging set loginuid
arm64: introduce mov_q macro to move a constant into a 64-bit register
arm64: Add work around for Arm Cortex-A55 Erratum 1024718
futex: Remove unnecessary warning from get_futex_key
futex: Remove duplicated code and fix undefined behaviour
xfrm: fix xfrm_do_migrate() with AEAD e.g(AES-GCM)
lockd: lost rollback of set_grace_period() in lockd_down_net()
Revert "ARM: dts: imx6qdl-wandboard: Fix audio channel swap"
l2tp: revert "l2tp: fix missing print session offset info"
pipe: cap initial pipe capacity according to pipe-max-size limit
futex: futex_wake_op, fix sign_extend32 sign bits
kernel/exit.c: avoid undefined behaviour when calling wait4()
usbip: usbip_host: refine probe and disconnect debug msgs to be useful
usbip: usbip_host: delete device from busid_table after rebind
usbip: usbip_host: run rebind from exit when module is removed
usbip: usbip_host: fix NULL-ptr deref and use-after-free errors
usbip: usbip_host: fix bad unlock balance during stub_probe()
ALSA: usb: mixer: volume quirk for CM102-A+/102S+
ALSA: hda: Add Lenovo C50 All in one to the power_save blacklist
ALSA: control: fix a redundant-copy issue
spi: pxa2xx: Allow 64-bit DMA
powerpc/powernv: panic() on OPAL < V3
powerpc/powernv: Remove OPALv2 firmware define and references
powerpc/powernv: remove FW_FEATURE_OPALv3 and just use FW_FEATURE_OPAL
cpuidle: coupled: remove unused define cpuidle_coupled_lock
powerpc: Don't preempt_disable() in show_cpuinfo()
vmscan: do not force-scan file lru if its absolute size is small
proc: meminfo: estimate available memory more conservatively
mm: filemap: remove redundant code in do_read_cache_page
mm: filemap: avoid unnecessary calls to lock_page when waiting for IO to complete during a read
signals: avoid unnecessary taking of sighand->siglock
cpufreq: intel_pstate: Enable HWP by default
tracing/x86/xen: Remove zero data size trace events trace_xen_mmu_flush_tlb{_all}
proc read mm's {arg,env}_{start,end} with mmap semaphore taken.
procfs: fix pthread cross-thread naming if !PR_DUMPABLE
powerpc/powernv: Fix NVRAM sleep in invalid context when crashing
mm: don't allow deferred pages with NEED_PER_CPU_KM
s390/qdio: fix access to uninitialized qdio_q fields
s390/cpum_sf: ensure sample frequency of perf event attributes is non-zero
s390/qdio: don't release memory in qdio_setup_irq()
s390: remove indirect branch from do_softirq_own_stack
efi: Avoid potential crashes, fix the 'struct efi_pci_io_protocol_32' definition for mixed mode
ARM: 8771/1: kprobes: Prohibit kprobes on do_undefinstr
tick/broadcast: Use for_each_cpu() specially on UP kernels
ARM: 8769/1: kprobes: Fix to use get_kprobe_ctlblk after irq-disabed
ARM: 8770/1: kprobes: Prohibit probing on optimized_callback
ARM: 8772/1: kprobes: Prohibit kprobes on get_user functions
Btrfs: fix xattr loss after power failure
btrfs: fix crash when trying to resume balance without the resume flag
btrfs: fix reading stale metadata blocks after degraded raid1 mounts
net: test tailroom before appending to linear skb
packet: in packet_snd start writing at link layer allocation
sock_diag: fix use-after-free read in __sk_free
tcp: purge write queue in tcp_connect_init()
ext2: fix a block leak
s390: add assembler macros for CPU alternatives
s390: move expoline assembler macros to a header
s390/lib: use expoline for indirect branches
s390/kernel: use expoline for indirect branches
s390: move spectre sysfs attribute code
s390: extend expoline to BC instructions
s390: use expoline thunks in the BPF JIT
scsi: libsas: defer ata device eh commands to libata
scsi: sg: allocate with __GFP_ZERO in sg_build_indirect()
scsi: zfcp: fix infinite iteration on ERP ready list
dmaengine: ensure dmaengine helpers check valid callback
time: Fix CLOCK_MONOTONIC_RAW sub-nanosecond accounting
gpio: rcar: Add Runtime PM handling for interrupts
cfg80211: limit wiphy names to 128 bytes
hfsplus: stop workqueue when fill_super() failed
x86/kexec: Avoid double free_page() upon do_kexec_load() failure
Linux 4.4.133
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Conflicts:
arch/arm64/include/asm/assembler.h
arch/arm64/include/asm/cputype.h
fs/proc/base.c
kernel/auditsc.c
mm/vmscan.c
|
||
|
Greg Kroah-Hartman
|
3f51ea2db9 |
Merge 4.4.133 into android-4.4
Changes in 4.4.133
8139too: Use disable_irq_nosync() in rtl8139_poll_controller()
bridge: check iface upper dev when setting master via ioctl
dccp: fix tasklet usage
ipv4: fix memory leaks in udp_sendmsg, ping_v4_sendmsg
llc: better deal with too small mtu
net: ethernet: sun: niu set correct packet size in skb
net/mlx4_en: Verify coalescing parameters are in range
net_sched: fq: take care of throttled flows before reuse
net: support compat 64-bit time in {s,g}etsockopt
openvswitch: Don't swap table in nlattr_set() after OVS_ATTR_NESTED is found
qmi_wwan: do not steal interfaces from class drivers
r8169: fix powering up RTL8168h
sctp: handle two v4 addrs comparison in sctp_inet6_cmp_addr
sctp: use the old asoc when making the cookie-ack chunk in dupcook_d
tg3: Fix vunmap() BUG_ON() triggered from tg3_free_consistent().
bonding: do not allow rlb updates to invalid mac
tcp: ignore Fast Open on repair mode
sctp: fix the issue that the cookie-ack with auth can't get processed
sctp: delay the authentication for the duplicated cookie-echo chunk
ALSA: timer: Call notifier in the same spinlock
audit: move calcs after alloc and check when logging set loginuid
arm64: introduce mov_q macro to move a constant into a 64-bit register
arm64: Add work around for Arm Cortex-A55 Erratum 1024718
futex: Remove unnecessary warning from get_futex_key
futex: Remove duplicated code and fix undefined behaviour
xfrm: fix xfrm_do_migrate() with AEAD e.g(AES-GCM)
lockd: lost rollback of set_grace_period() in lockd_down_net()
Revert "ARM: dts: imx6qdl-wandboard: Fix audio channel swap"
l2tp: revert "l2tp: fix missing print session offset info"
pipe: cap initial pipe capacity according to pipe-max-size limit
futex: futex_wake_op, fix sign_extend32 sign bits
kernel/exit.c: avoid undefined behaviour when calling wait4()
usbip: usbip_host: refine probe and disconnect debug msgs to be useful
usbip: usbip_host: delete device from busid_table after rebind
usbip: usbip_host: run rebind from exit when module is removed
usbip: usbip_host: fix NULL-ptr deref and use-after-free errors
usbip: usbip_host: fix bad unlock balance during stub_probe()
ALSA: usb: mixer: volume quirk for CM102-A+/102S+
ALSA: hda: Add Lenovo C50 All in one to the power_save blacklist
ALSA: control: fix a redundant-copy issue
spi: pxa2xx: Allow 64-bit DMA
powerpc/powernv: panic() on OPAL < V3
powerpc/powernv: Remove OPALv2 firmware define and references
powerpc/powernv: remove FW_FEATURE_OPALv3 and just use FW_FEATURE_OPAL
cpuidle: coupled: remove unused define cpuidle_coupled_lock
powerpc: Don't preempt_disable() in show_cpuinfo()
vmscan: do not force-scan file lru if its absolute size is small
proc: meminfo: estimate available memory more conservatively
mm: filemap: remove redundant code in do_read_cache_page
mm: filemap: avoid unnecessary calls to lock_page when waiting for IO to complete during a read
signals: avoid unnecessary taking of sighand->siglock
cpufreq: intel_pstate: Enable HWP by default
tracing/x86/xen: Remove zero data size trace events trace_xen_mmu_flush_tlb{_all}
proc read mm's {arg,env}_{start,end} with mmap semaphore taken.
procfs: fix pthread cross-thread naming if !PR_DUMPABLE
powerpc/powernv: Fix NVRAM sleep in invalid context when crashing
mm: don't allow deferred pages with NEED_PER_CPU_KM
s390/qdio: fix access to uninitialized qdio_q fields
s390/cpum_sf: ensure sample frequency of perf event attributes is non-zero
s390/qdio: don't release memory in qdio_setup_irq()
s390: remove indirect branch from do_softirq_own_stack
efi: Avoid potential crashes, fix the 'struct efi_pci_io_protocol_32' definition for mixed mode
ARM: 8771/1: kprobes: Prohibit kprobes on do_undefinstr
tick/broadcast: Use for_each_cpu() specially on UP kernels
ARM: 8769/1: kprobes: Fix to use get_kprobe_ctlblk after irq-disabed
ARM: 8770/1: kprobes: Prohibit probing on optimized_callback
ARM: 8772/1: kprobes: Prohibit kprobes on get_user functions
Btrfs: fix xattr loss after power failure
btrfs: fix crash when trying to resume balance without the resume flag
btrfs: fix reading stale metadata blocks after degraded raid1 mounts
net: test tailroom before appending to linear skb
packet: in packet_snd start writing at link layer allocation
sock_diag: fix use-after-free read in __sk_free
tcp: purge write queue in tcp_connect_init()
ext2: fix a block leak
s390: add assembler macros for CPU alternatives
s390: move expoline assembler macros to a header
s390/lib: use expoline for indirect branches
s390/kernel: use expoline for indirect branches
s390: move spectre sysfs attribute code
s390: extend expoline to BC instructions
s390: use expoline thunks in the BPF JIT
scsi: libsas: defer ata device eh commands to libata
scsi: sg: allocate with __GFP_ZERO in sg_build_indirect()
scsi: zfcp: fix infinite iteration on ERP ready list
dmaengine: ensure dmaengine helpers check valid callback
time: Fix CLOCK_MONOTONIC_RAW sub-nanosecond accounting
gpio: rcar: Add Runtime PM handling for interrupts
cfg80211: limit wiphy names to 128 bytes
hfsplus: stop workqueue when fill_super() failed
x86/kexec: Avoid double free_page() upon do_kexec_load() failure
Linux 4.4.133
Change-Id: I0554b12889bc91add2a444da95f18d59c6fb9cdb
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
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zhongjiang
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ea00b22b02 |
kernel/exit.c: avoid undefined behaviour when calling wait4()
commit dd83c161fbcc5d8be637ab159c0de015cbff5ba4 upstream. wait4(-2147483648, 0x20, 0, 0xdd0000) triggers: UBSAN: Undefined behaviour in kernel/exit.c:1651:9 The related calltrace is as follows: negation of -2147483648 cannot be represented in type 'int': CPU: 9 PID: 16482 Comm: zj Tainted: G B ---- ------- 3.10.0-327.53.58.71.x86_64+ #66 Hardware name: Huawei Technologies Co., Ltd. Tecal RH2285 /BC11BTSA , BIOS CTSAV036 04/27/2011 Call Trace: dump_stack+0x19/0x1b ubsan_epilogue+0xd/0x50 __ubsan_handle_negate_overflow+0x109/0x14e SyS_wait4+0x1cb/0x1e0 system_call_fastpath+0x16/0x1b Exclude the overflow to avoid the UBSAN warning. Link: http://lkml.kernel.org/r/1497264618-20212-1-git-send-email-zhongjiang@huawei.com Signed-off-by: zhongjiang <zhongjiang@huawei.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: David Rientjes <rientjes@google.com> Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Xishi Qiu <qiuxishi@huawei.com> 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> |
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Connor O'Brien
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fba21f6831 |
ANDROID: cpufreq: track per-task time in state
Add time in state data to task structs, and create /proc/<pid>/time_in_state files to show how long each individual task has run at each frequency. Create a CONFIG_CPU_FREQ_TIMES option to enable/disable this tracking. Signed-off-by: Connor O'Brien <connoro@google.com> Bug: 72339335 Test: Read /proc/<pid>/time_in_state Change-Id: Ia6456754f4cb1e83b2bc35efa8fbe9f8696febc8 |
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Jiri Slaby
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af22cc785f |
BACKPORT: exit_thread: accept a task parameter to be exited
We need to call exit_thread from copy_process in a fail path. So make it accept task_struct as a parameter. [v2] * s390: exit_thread_runtime_instr doesn't make sense to be called for non-current tasks. * arm: fix the comment in vfp_thread_copy * change 'me' to 'tsk' for task_struct * now we can change only archs that actually have exit_thread [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: "David S. Miller" <davem@davemloft.net> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Aurelien Jacquiot <a-jacquiot@ti.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chen Liqin <liqin.linux@gmail.com> Cc: Chris Metcalf <cmetcalf@mellanox.com> Cc: Chris Zankel <chris@zankel.net> Cc: David Howells <dhowells@redhat.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Helge Deller <deller@gmx.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: James Hogan <james.hogan@imgtec.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Jonas Bonn <jonas@southpole.se> Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Cc: Lennox Wu <lennox.wu@gmail.com> Cc: Ley Foon Tan <lftan@altera.com> Cc: Mark Salter <msalter@redhat.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Matt Turner <mattst88@gmail.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Simek <monstr@monstr.eu> Cc: Mikael Starvik <starvik@axis.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Rich Felker <dalias@libc.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Richard Kuo <rkuo@codeaurora.org> Cc: Richard Weinberger <richard@nod.at> Cc: Russell King <linux@arm.linux.org.uk> Cc: Steven Miao <realmz6@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> (cherry picked from commit e64646946ed32902fd597fa6e514b1da84642de3) Conflicts: arch/s390/kernel/process.c Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> |
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Dmitry Vyukov
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9b83f370dc |
BACKPORT: kernel: add kcov code coverage
kcov provides code coverage collection for coverage-guided fuzzing (randomized testing). Coverage-guided fuzzing is a testing technique that uses coverage feedback to determine new interesting inputs to a system. A notable user-space example is AFL (http://lcamtuf.coredump.cx/afl/). However, this technique is not widely used for kernel testing due to missing compiler and kernel support. kcov does not aim to collect as much coverage as possible. It aims to collect more or less stable coverage that is function of syscall inputs. To achieve this goal it does not collect coverage in soft/hard interrupts and instrumentation of some inherently non-deterministic or non-interesting parts of kernel is disbled (e.g. scheduler, locking). Currently there is a single coverage collection mode (tracing), but the API anticipates additional collection modes. Initially I also implemented a second mode which exposes coverage in a fixed-size hash table of counters (what Quentin used in his original patch). I've dropped the second mode for simplicity. This patch adds the necessary support on kernel side. The complimentary compiler support was added in gcc revision 231296. We've used this support to build syzkaller system call fuzzer, which has found 90 kernel bugs in just 2 months: https://github.com/google/syzkaller/wiki/Found-Bugs We've also found 30+ bugs in our internal systems with syzkaller. Another (yet unexplored) direction where kcov coverage would greatly help is more traditional "blob mutation". For example, mounting a random blob as a filesystem, or receiving a random blob over wire. Why not gcov. Typical fuzzing loop looks as follows: (1) reset coverage, (2) execute a bit of code, (3) collect coverage, repeat. A typical coverage can be just a dozen of basic blocks (e.g. an invalid input). In such context gcov becomes prohibitively expensive as reset/collect coverage steps depend on total number of basic blocks/edges in program (in case of kernel it is about 2M). Cost of kcov depends only on number of executed basic blocks/edges. On top of that, kernel requires per-thread coverage because there are always background threads and unrelated processes that also produce coverage. With inlined gcov instrumentation per-thread coverage is not possible. kcov exposes kernel PCs and control flow to user-space which is insecure. But debugfs should not be mapped as user accessible. Based on a patch by Quentin Casasnovas. [akpm@linux-foundation.org: make task_struct.kcov_mode have type `enum kcov_mode'] [akpm@linux-foundation.org: unbreak allmodconfig] [akpm@linux-foundation.org: follow x86 Makefile layout standards] Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Kees Cook <keescook@chromium.org> Cc: syzkaller <syzkaller@googlegroups.com> Cc: Vegard Nossum <vegard.nossum@oracle.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Tavis Ormandy <taviso@google.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Quentin Casasnovas <quentin.casasnovas@oracle.com> Cc: Kostya Serebryany <kcc@google.com> Cc: Eric Dumazet <edumazet@google.com> Cc: Alexander Potapenko <glider@google.com> Cc: Kees Cook <keescook@google.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Sasha Levin <sasha.levin@oracle.com> Cc: David Drysdale <drysdale@google.com> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com> Cc: Kirill A. Shutemov <kirill@shutemov.name> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Bug: 64145065 (cherry-picked from 5c9a8750a6409c63a0f01d51a9024861022f6593) Change-Id: I17b5e04f6e89b241924e78ec32ead79c38b860ce Signed-off-by: Paul Lawrence <paullawrence@google.com> |
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Andres Oportus
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502920bb13 |
ANDROID: cpufreq: stats: Fix dead stats clearing timing
Combine task exit stats aggregation to happen at the same time when stats are cleared, avoiding inconsistent data (stats of uids time appear to decrease) and simplifying the code. Bug: 63041570 Test: Continuosly read /proc/uid_time_in_state and check for decreasing values Signed-off-by: Andres Oportus <andresoportus@google.com> Change-Id: Ie2b4ce4a02f533140a6c5f9ae5cb7ae978c93f9e |
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Andres Oportus
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fc4ac15a00 |
ANDROID: cpufreq: stats: add per task/uid/freq/cluster stats
Adds: -Per task nodes in /proc/PID/time_in_state showing per frequency(state)/cluster(policy) times -Global /proc/uid_time_in_state showing per uid/frequency/cluster times including uid removal from /proc/uid_cputime/remove_uid_range -Global all_time_in_state showing per frequency/cluster/cpu times Bug: 62303881 Bug: 62340637 Tests: Reading /proc/$$/time_in_state, /proc/uid_time_in_state, and /sys/devices/system/cpu/cpufreq/all_time_in_state. Writing /proc/uid_cputime/remove_uid_range Change-Id: I222843b6f714717da9377817c19ac0d5400cb41a Signed-off-by: Andres Oportus <andresoportus@google.com> |
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Andres Oportus
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ac087abe13 |
Merge android-msm-8998-4.4-common into android-msm-muskie-4.4
Add and enable EAS support by bringing remote tracking branch android-msm-8998-4.4-common in kernel/private/msm-qcom into branch android-msm-muskie-4.4 Manual merges: arch/arm/boot/dts/qcom/msm8998.dtsi (from msmcobalt.dtsi in android-msm-8998-4.4-common) arch/arm64/configs/muskie_defconfig (from msmcobalt_defconfig in android-msm-8998-4.4-common) include/linux/cpu.h (taken from android-msm-muskie-4.4) drivers/staging/qca-wifi-host-cmn/hif/src/hif_napi.c (remove core_ctl_set_boost calls) Change-Id: I8e0dd7233d4ab7122d5e3d7b5c8d5fc42165a494 Signed-off-by: Andres Oportus <andresoportus@google.com> |
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Thierry Strudel
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467a2d9427 |
Merge branch 'android-msm-8998-4.4' into android-msm-muskie-4.4
Merging baseline tag LA.UM.5.7_RB1.07.00.00.251.006 Change-Id: Ia596986191ba240cc90899dddb6e9cb9854fe3ea |
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David Rientjes
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ef7e9ffac6 |
mm, mempolicy: task->mempolicy must be NULL before dropping final reference
KASAN allocates memory from the page allocator as part of kmem_cache_free(), and that can reference current->mempolicy through any number of allocation functions. It needs to be NULL'd out before the final reference is dropped to prevent a use-after-free bug: BUG: KASAN: use-after-free in alloc_pages_current+0x363/0x370 at addr ffff88010b48102c CPU: 0 PID: 15425 Comm: trinity-c2 Not tainted 4.8.0-rc2+ #140 ... Call Trace: dump_stack kasan_object_err kasan_report_error __asan_report_load2_noabort alloc_pages_current <-- use after free depot_save_stack save_stack kasan_slab_free kmem_cache_free __mpol_put <-- free do_exit This patch sets current->mempolicy to NULL before dropping the final reference. Link: http://lkml.kernel.org/r/alpine.DEB.2.10.1608301442180.63329@chino.kir.corp.google.com Fixes: cd11016e5f52 ("mm, kasan: stackdepot implementation. Enable stackdepot for SLAB") Signed-off-by: David Rientjes <rientjes@google.com> Reported-by: Vegard Nossum <vegard.nossum@oracle.com> Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Alexander Potapenko <glider@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: <stable@vger.kernel.org> [4.6+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> (cherry picked from commit c11600e4fed67ae4cd6a8096936afd445410e8ed) Signed-off-by: Alexander Potapenko <glider@google.com> |
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Dmitry Vyukov
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53b8336401 |
UPSTREAM: kernel: add kcov code coverage
kcov provides code coverage collection for coverage-guided fuzzing (randomized testing). Coverage-guided fuzzing is a testing technique that uses coverage feedback to determine new interesting inputs to a system. A notable user-space example is AFL (http://lcamtuf.coredump.cx/afl/). However, this technique is not widely used for kernel testing due to missing compiler and kernel support. kcov does not aim to collect as much coverage as possible. It aims to collect more or less stable coverage that is function of syscall inputs. To achieve this goal it does not collect coverage in soft/hard interrupts and instrumentation of some inherently non-deterministic or non-interesting parts of kernel is disbled (e.g. scheduler, locking). Currently there is a single coverage collection mode (tracing), but the API anticipates additional collection modes. Initially I also implemented a second mode which exposes coverage in a fixed-size hash table of counters (what Quentin used in his original patch). I've dropped the second mode for simplicity. This patch adds the necessary support on kernel side. The complimentary compiler support was added in gcc revision 231296. We've used this support to build syzkaller system call fuzzer, which has found 90 kernel bugs in just 2 months: https://github.com/google/syzkaller/wiki/Found-Bugs We've also found 30+ bugs in our internal systems with syzkaller. Another (yet unexplored) direction where kcov coverage would greatly help is more traditional "blob mutation". For example, mounting a random blob as a filesystem, or receiving a random blob over wire. Why not gcov. Typical fuzzing loop looks as follows: (1) reset coverage, (2) execute a bit of code, (3) collect coverage, repeat. A typical coverage can be just a dozen of basic blocks (e.g. an invalid input). In such context gcov becomes prohibitively expensive as reset/collect coverage steps depend on total number of basic blocks/edges in program (in case of kernel it is about 2M). Cost of kcov depends only on number of executed basic blocks/edges. On top of that, kernel requires per-thread coverage because there are always background threads and unrelated processes that also produce coverage. With inlined gcov instrumentation per-thread coverage is not possible. kcov exposes kernel PCs and control flow to user-space which is insecure. But debugfs should not be mapped as user accessible. Based on a patch by Quentin Casasnovas. [akpm@linux-foundation.org: make task_struct.kcov_mode have type `enum kcov_mode'] [akpm@linux-foundation.org: unbreak allmodconfig] [akpm@linux-foundation.org: follow x86 Makefile layout standards] Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Kees Cook <keescook@chromium.org> Cc: syzkaller <syzkaller@googlegroups.com> Cc: Vegard Nossum <vegard.nossum@oracle.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Tavis Ormandy <taviso@google.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Quentin Casasnovas <quentin.casasnovas@oracle.com> Cc: Kostya Serebryany <kcc@google.com> Cc: Eric Dumazet <edumazet@google.com> Cc: Alexander Potapenko <glider@google.com> Cc: Kees Cook <keescook@google.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Sasha Levin <sasha.levin@oracle.com> Cc: David Drysdale <drysdale@google.com> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com> Cc: Kirill A. Shutemov <kirill@shutemov.name> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> (cherry picked from commit 5c9a8750a6409c63a0f01d51a9024861022f6593) Signed-off-by: Alexander Potapenko <glider@google.com> Change-Id: Ia7d116ded35eb31a514406f864d7d591606c65f3 |
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Runmin Wang
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9cc5c789d9 |
Merge remote-tracking branch 'msm4.4/tmp-da9a92f' into msm-4.4
* origin/tmp-da9a92f:
arm64: kaslr: increase randomization granularity
arm64: relocatable: deal with physically misaligned kernel images
arm64: don't map TEXT_OFFSET bytes below the kernel if we can avoid it
arm64: kernel: replace early 64-bit literal loads with move-immediates
arm64: introduce mov_q macro to move a constant into a 64-bit register
arm64: kernel: perform relocation processing from ID map
arm64: kernel: use literal for relocated address of __secondary_switched
arm64: kernel: don't export local symbols from head.S
arm64: simplify kernel segment mapping granularity
arm64: cover the .head.text section in the .text segment mapping
arm64: move early boot code to the .init segment
arm64: use 'segment' rather than 'chunk' to describe mapped kernel regions
arm64: mm: Mark .rodata as RO
Linux 4.4.16
ovl: verify upper dentry before unlink and rename
drm/i915: Revert DisplayPort fast link training feature
tmpfs: fix regression hang in fallocate undo
tmpfs: don't undo fallocate past its last page
crypto: qat - make qat_asym_algs.o depend on asn1 headers
xen/acpi: allow xen-acpi-processor driver to load on Xen 4.7
File names with trailing period or space need special case conversion
cifs: dynamic allocation of ntlmssp blob
Fix reconnect to not defer smb3 session reconnect long after socket reconnect
53c700: fix BUG on untagged commands
s390: fix test_fp_ctl inline assembly contraints
scsi: fix race between simultaneous decrements of ->host_failed
ovl: verify upper dentry in ovl_remove_and_whiteout()
ovl: Copy up underlying inode's ->i_mode to overlay inode
ARM: mvebu: fix HW I/O coherency related deadlocks
ARM: dts: armada-38x: fix MBUS_ID for crypto SRAM on Armada 385 Linksys
ARM: sunxi/dt: make the CHIP inherit from allwinner,sun5i-a13
ALSA: hda: add AMD Stoney PCI ID with proper driver caps
ALSA: hda - fix use-after-free after module unload
ALSA: ctl: Stop notification after disconnection
ALSA: pcm: Free chmap at PCM free callback, too
ALSA: hda/realtek - add new pin definition in alc225 pin quirk table
ALSA: hda - fix read before array start
ALSA: hda - Add PCI ID for Kabylake-H
ALSA: hda/realtek: Add Lenovo L460 to docking unit fixup
ALSA: timer: Fix negative queue usage by racy accesses
ALSA: echoaudio: Fix memory allocation
ALSA: au88x0: Fix calculation in vortex_wtdma_bufshift()
ALSA: hda / realtek - add two more Thinkpad IDs (5050,5053) for tpt460 fixup
ALSA: hda - Fix the headset mic jack detection on Dell machine
ALSA: dummy: Fix a use-after-free at closing
hwmon: (dell-smm) Cache fan_type() calls and change fan detection
hwmon: (dell-smm) Disallow fan_type() calls on broken machines
hwmon: (dell-smm) Restrict fan control and serial number to CAP_SYS_ADMIN by default
tty/vt/keyboard: fix OOB access in do_compute_shiftstate()
tty: vt: Fix soft lockup in fbcon cursor blink timer.
iio:ad7266: Fix probe deferral for vref
iio:ad7266: Fix support for optional regulators
iio:ad7266: Fix broken regulator error handling
iio: accel: kxsd9: fix the usage of spi_w8r8()
staging: iio: accel: fix error check
iio: hudmidity: hdc100x: fix incorrect shifting and scaling
iio: humidity: hdc100x: fix IIO_TEMP channel reporting
iio: humidity: hdc100x: correct humidity integration time mask
iio: proximity: as3935: fix buffer stack trashing
iio: proximity: as3935: remove triggered buffer processing
iio: proximity: as3935: correct IIO_CHAN_INFO_RAW output
iio: light apds9960: Add the missing dev.parent
iio:st_pressure: fix sampling gains (bring inline with ABI)
iio: Fix error handling in iio_trigger_attach_poll_func
xen/balloon: Fix declared-but-not-defined warning
perf/x86: Fix undefined shift on 32-bit kernels
memory: omap-gpmc: Fix omap gpmc EXTRADELAY timing
drm/vmwgfx: Fix error paths when mapping framebuffer
drm/vmwgfx: Delay pinning fbdev framebuffer until after mode set
drm/vmwgfx: Check pin count before attempting to move a buffer
drm/vmwgfx: Work around mode set failure in 2D VMs
drm/vmwgfx: Add an option to change assumed FB bpp
drm/ttm: Make ttm_bo_mem_compat available
drm: atmel-hlcdc: actually disable scaling when no scaling is required
drm: make drm_atomic_set_mode_prop_for_crtc() more reliable
drm: add missing drm_mode_set_crtcinfo call
drm/i915: Update CDCLK_FREQ register on BDW after changing cdclk frequency
drm/i915: Update ifdeffery for mutex->owner
drm/i915: Refresh cached DP port register value on resume
drm/i915/ilk: Don't disable SSC source if it's in use
drm/nouveau/disp/sor/gf119: select correct sor when poking training pattern
drm/nouveau: fix for disabled fbdev emulation
drm/nouveau/fbcon: fix out-of-bounds memory accesses
drm/nouveau/gr/gf100-: update sm error decoding from gk20a nvgpu headers
drm/nouveau/disp/sor/gf119: both links use the same training register
virtio_balloon: fix PFN format for virtio-1
drm/dp/mst: Always clear proposed vcpi table for port.
drm/amdkfd: destroy dbgmgr in notifier release
drm/amdkfd: unbind only existing processes
ubi: Make recover_peb power cut aware
drm/amdgpu/gfx7: fix broken condition check
drm/radeon: fix asic initialization for virtualized environments
btrfs: account for non-CoW'd blocks in btrfs_abort_transaction
percpu: fix synchronization between synchronous map extension and chunk destruction
percpu: fix synchronization between chunk->map_extend_work and chunk destruction
af_unix: fix hard linked sockets on overlay
vfs: add d_real_inode() helper
arm64: Rework valid_user_regs
ipmi: Remove smi_msg from waiting_rcv_msgs list before handle_one_recv_msg()
drm/mgag200: Black screen fix for G200e rev 4
iommu/amd: Fix unity mapping initialization race
iommu/vt-d: Enable QI on all IOMMUs before setting root entry
iommu/arm-smmu: Wire up map_sg for arm-smmu-v3
base: make module_create_drivers_dir race-free
tracing: Handle NULL formats in hold_module_trace_bprintk_format()
HID: multitouch: enable palm rejection for Windows Precision Touchpad
HID: hiddev: validate num_values for HIDIOCGUSAGES, HIDIOCSUSAGES commands
HID: elo: kill not flush the work
KVM: nVMX: VMX instructions: fix segment checks when L1 is in long mode.
kvm: Fix irq route entries exceeding KVM_MAX_IRQ_ROUTES
KEYS: potential uninitialized variable
ARCv2: LLSC: software backoff is NOT needed starting HS2.1c
ARCv2: Check for LL-SC livelock only if LLSC is enabled
ipv6: Fix mem leak in rt6i_pcpu
cdc_ncm: workaround for EM7455 "silent" data interface
net_sched: fix mirrored packets checksum
packet: Use symmetric hash for PACKET_FANOUT_HASH.
sched/fair: Fix cfs_rq avg tracking underflow
UBIFS: Implement ->migratepage()
mm: Export migrate_page_move_mapping and migrate_page_copy
MIPS: KVM: Fix modular KVM under QEMU
ARM: 8579/1: mm: Fix definition of pmd_mknotpresent
ARM: 8578/1: mm: ensure pmd_present only checks the valid bit
ARM: imx6ul: Fix Micrel PHY mask
NFS: Fix another OPEN_DOWNGRADE bug
make nfs_atomic_open() call d_drop() on all ->open_context() errors.
nfsd: check permissions when setting ACLs
posix_acl: Add set_posix_acl
nfsd: Extend the mutex holding region around in nfsd4_process_open2()
nfsd: Always lock state exclusively.
nfsd4/rpc: move backchannel create logic into rpc code
writeback: use higher precision calculation in domain_dirty_limits()
thermal: cpu_cooling: fix improper order during initialization
uvc: Forward compat ioctls to their handlers directly
Revert "gpiolib: Split GPIO flags parsing and GPIO configuration"
x86/amd_nb: Fix boot crash on non-AMD systems
kprobes/x86: Clear TF bit in fault on single-stepping
x86, build: copy ldlinux.c32 to image.iso
locking/static_key: Fix concurrent static_key_slow_inc()
locking/qspinlock: Fix spin_unlock_wait() some more
locking/ww_mutex: Report recursive ww_mutex locking early
of: irq: fix of_irq_get[_byname]() kernel-doc
of: fix autoloading due to broken modalias with no 'compatible'
mnt: If fs_fully_visible fails call put_filesystem.
mnt: Account for MS_RDONLY in fs_fully_visible
mnt: fs_fully_visible test the proper mount for MNT_LOCKED
usb: common: otg-fsm: add license to usb-otg-fsm
USB: EHCI: declare hostpc register as zero-length array
usb: dwc2: fix regression on big-endian PowerPC/ARM systems
powerpc/tm: Always reclaim in start_thread() for exec() class syscalls
powerpc/pseries: Fix IBM_ARCH_VEC_NRCORES_OFFSET since POWER8NVL was added
powerpc/pseries: Fix PCI config address for DDW
powerpc/iommu: Remove the dependency on EEH struct in DDW mechanism
IB/mlx4: Properly initialize GRH TClass and FlowLabel in AHs
IB/cm: Fix a recently introduced locking bug
EDAC, sb_edac: Fix rank lookup on Broadwell
mac80211: Fix mesh estab_plinks counting in STA removal case
mac80211_hwsim: Add missing check for HWSIM_ATTR_SIGNAL
mac80211: mesh: flush mesh paths unconditionally
mac80211: fix fast_tx header alignment
Linux 4.4.15
usb: dwc3: exynos: Fix deferred probing storm.
usb: host: ehci-tegra: Grab the correct UTMI pads reset
usb: gadget: fix spinlock dead lock in gadgetfs
USB: mos7720: delete parport
xhci: Fix handling timeouted commands on hosts in weird states.
USB: xhci: Add broken streams quirk for Frescologic device id 1009
usb: xhci-plat: properly handle probe deferral for devm_clk_get()
xhci: Cleanup only when releasing primary hcd
usb: musb: host: correct cppi dma channel for isoch transfer
usb: musb: Ensure rx reinit occurs for shared_fifo endpoints
usb: musb: Stop bulk endpoint while queue is rotated
usb: musb: only restore devctl when session was set in backup
usb: quirks: Add no-lpm quirk for Acer C120 LED Projector
usb: quirks: Fix sorting
USB: uas: Fix slave queue_depth not being set
crypto: user - re-add size check for CRYPTO_MSG_GETALG
crypto: ux500 - memmove the right size
crypto: vmx - Increase priority of aes-cbc cipher
AX.25: Close socket connection on session completion
bpf: try harder on clones when writing into skb
net: alx: Work around the DMA RX overflow issue
net: macb: fix default configuration for GMAC on AT91
neigh: Explicitly declare RCU-bh read side critical section in neigh_xmit()
bpf, perf: delay release of BPF prog after grace period
sock_diag: do not broadcast raw socket destruction
Bridge: Fix ipv6 mc snooping if bridge has no ipv6 address
ipmr/ip6mr: Initialize the last assert time of mfc entries.
netem: fix a use after free
esp: Fix ESN generation under UDP encapsulation
sit: correct IP protocol used in ipip6_err
net: Don't forget pr_fmt on net_dbg_ratelimited for CONFIG_DYNAMIC_DEBUG
net_sched: fix pfifo_head_drop behavior vs backlog
sdcardfs: Truncate packages_gid.list on overflow
UPSTREAM: cdc_ncm: do not call usbnet_link_change from cdc_ncm_bind
BACKPORT: proc: add /proc/<pid>/timerslack_ns interface
BACKPORT: timer: convert timer_slack_ns from unsigned long to u64
netfilter: xt_quota2: make quota2_log work well
Revert "usb: gadget: prevent change of Host MAC address of 'usb0' interface"
BACKPORT: PM / sleep: Go direct_complete if driver has no callbacks
ANDROID: base-cfg: enable UID_CPUTIME
UPSTREAM: USB: usbfs: fix potential infoleak in devio
UPSTREAM: ALSA: timer: Fix leak in events via snd_timer_user_ccallback
UPSTREAM: ALSA: timer: Fix leak in events via snd_timer_user_tinterrupt
UPSTREAM: ALSA: timer: Fix leak in SNDRV_TIMER_IOCTL_PARAMS
ANDROID: configs: remove unused configs
ANDROID: cpu: send KOBJ_ONLINE event when enabling cpus
ANDROID: dm verity fec: initialize recursion level
ANDROID: dm verity fec: fix RS block calculation
Linux 4.4.14
netfilter: x_tables: introduce and use xt_copy_counters_from_user
netfilter: x_tables: do compat validation via translate_table
netfilter: x_tables: xt_compat_match_from_user doesn't need a retval
netfilter: ip6_tables: simplify translate_compat_table args
netfilter: ip_tables: simplify translate_compat_table args
netfilter: arp_tables: simplify translate_compat_table args
netfilter: x_tables: don't reject valid target size on some architectures
netfilter: x_tables: validate all offsets and sizes in a rule
netfilter: x_tables: check for bogus target offset
netfilter: x_tables: check standard target size too
netfilter: x_tables: add compat version of xt_check_entry_offsets
netfilter: x_tables: assert minimum target size
netfilter: x_tables: kill check_entry helper
netfilter: x_tables: add and use xt_check_entry_offsets
netfilter: x_tables: validate targets of jumps
netfilter: x_tables: don't move to non-existent next rule
drm/core: Do not preserve framebuffer on rmfb, v4.
crypto: qat - fix adf_ctl_drv.c:undefined reference to adf_init_pf_wq
netfilter: x_tables: fix unconditional helper
netfilter: x_tables: make sure e->next_offset covers remaining blob size
netfilter: x_tables: validate e->target_offset early
MIPS: Fix 64k page support for 32 bit kernels.
sparc64: Fix return from trap window fill crashes.
sparc: Harden signal return frame checks.
sparc64: Take ctx_alloc_lock properly in hugetlb_setup().
sparc64: Reduce TLB flushes during hugepte changes
sparc/PCI: Fix for panic while enabling SR-IOV
sparc64: Fix sparc64_set_context stack handling.
sparc64: Fix numa node distance initialization
sparc64: Fix bootup regressions on some Kconfig combinations.
sparc: Fix system call tracing register handling.
fix d_walk()/non-delayed __d_free() race
sched: panic on corrupted stack end
proc: prevent stacking filesystems on top
x86/entry/traps: Don't force in_interrupt() to return true in IST handlers
wext: Fix 32 bit iwpriv compatibility issue with 64 bit Kernel
ecryptfs: forbid opening files without mmap handler
memcg: add RCU locking around css_for_each_descendant_pre() in memcg_offline_kmem()
parisc: Fix pagefault crash in unaligned __get_user() call
pinctrl: mediatek: fix dual-edge code defect
powerpc/pseries: Add POWER8NVL support to ibm,client-architecture-support call
powerpc: Use privileged SPR number for MMCR2
powerpc: Fix definition of SIAR and SDAR registers
powerpc/pseries/eeh: Handle RTAS delay requests in configure_bridge
arm64: mm: always take dirty state from new pte in ptep_set_access_flags
arm64: Provide "model name" in /proc/cpuinfo for PER_LINUX32 tasks
crypto: ccp - Fix AES XTS error for request sizes above 4096
crypto: public_key: select CRYPTO_AKCIPHER
irqchip/gic-v3: Fix ICC_SGI1R_EL1.INTID decoding mask
s390/bpf: reduce maximum program size to 64 KB
s390/bpf: fix recache skb->data/hlen for skb_vlan_push/pop
gpio: bcm-kona: fix bcm_kona_gpio_reset() warnings
ARM: fix PTRACE_SETVFPREGS on SMP systems
ALSA: hda/realtek: Add T560 docking unit fixup
ALSA: hda/realtek - Add support for new codecs ALC700/ALC701/ALC703
ALSA: hda/realtek - ALC256 speaker noise issue
ALSA: hda - Fix headset mic detection problem for Dell machine
ALSA: hda - Add PCI ID for Kabylake
KVM: irqfd: fix NULL pointer dereference in kvm_irq_map_gsi
KVM: x86: fix OOPS after invalid KVM_SET_DEBUGREGS
vxlan, gre, geneve: Set a large MTU on ovs-created tunnel devices
geneve: Relax MTU constraints
vxlan: Relax MTU constraints
ipv6: Skip XFRM lookup if dst_entry in socket cache is valid
l2tp: fix configuration passed to setup_udp_tunnel_sock()
bridge: Don't insert unnecessary local fdb entry on changing mac address
tcp: record TLP and ER timer stats in v6 stats
vxlan: Accept user specified MTU value when create new vxlan link
team: don't call netdev_change_features under team->lock
sfc: on MC reset, clear PIO buffer linkage in TXQs
bpf, inode: disallow userns mounts
uapi glibc compat: fix compilation when !__USE_MISC in glibc
udp: prevent skbs lingering in tunnel socket queues
bpf: Use mount_nodev not mount_ns to mount the bpf filesystem
tuntap: correctly wake up process during uninit
switchdev: pass pointer to fib_info instead of copy
tipc: fix nametable publication field in nl compat
netlink: Fix dump skb leak/double free
tipc: check nl sock before parsing nested attributes
scsi: Add QEMU CD-ROM to VPD Inquiry Blacklist
scsi_lib: correctly retry failed zero length REQ_TYPE_FS commands
cs-etm: associating output packet with CPU they executed on
cs-etm: removing unecessary structure field
cs-etm: account for each trace buffer in the queue
cs-etm: avoid casting variable
perf tools: fixing Makefile problems
perf tools: new naming convention for openCSD
perf scripts: Add python scripts for CoreSight traces
perf tools: decoding capailitity for CoreSight traces
perf symbols: Check before overwriting build_id
perf tools: pushing driver configuration down to the kernel
perf tools: add infrastructure for PMU specific configuration
coresight: etm-perf: incorporating sink definition from the cmd line
coresight: adding sink parameter to function coresight_build_path()
perf: passing struct perf_event to function setup_aux()
perf/core: adding PMU driver specific configuration
perf tools: adding coresight etm PMU record capabilities
perf tools: making coresight PMU listable
coresight: tmc: implementing TMC-ETR AUX space API
coresight: Add support for Juno platform
coresight: Handle build path error
coresight: Fix erroneous memset in tmc_read_unprepare_etr
coresight: Fix tmc_read_unprepare_etr
coresight: Fix NULL pointer dereference in _coresight_build_path
ANDROID: dm verity fec: add missing release from fec_ktype
ANDROID: dm verity fec: limit error correction recursion
ANDROID: restrict access to perf events
FROMLIST: security,perf: Allow further restriction of perf_event_open
BACKPORT: perf tools: Document the perf sysctls
Revert "armv6 dcc tty driver"
Revert "arm: dcc_tty: fix armv6 dcc tty build failure"
ARM64: Ignore Image-dtb from git point of view
arm64: add option to build Image-dtb
ANDROID: usb: gadget: f_midi: set fi->f to NULL when free f_midi function
Linux 4.4.13
xfs: handle dquot buffer readahead in log recovery correctly
xfs: print name of verifier if it fails
xfs: skip stale inodes in xfs_iflush_cluster
xfs: fix inode validity check in xfs_iflush_cluster
xfs: xfs_iflush_cluster fails to abort on error
xfs: Don't wrap growfs AGFL indexes
xfs: disallow rw remount on fs with unknown ro-compat features
gcov: disable tree-loop-im to reduce stack usage
scripts/package/Makefile: rpmbuild add support of RPMOPTS
dma-debug: avoid spinlock recursion when disabling dma-debug
PM / sleep: Handle failures in device_suspend_late() consistently
ext4: silence UBSAN in ext4_mb_init()
ext4: address UBSAN warning in mb_find_order_for_block()
ext4: fix oops on corrupted filesystem
ext4: clean up error handling when orphan list is corrupted
ext4: fix hang when processing corrupted orphaned inode list
drm/imx: Match imx-ipuv3-crtc components using device node in platform data
drm/i915: Don't leave old junk in ilk active watermarks on readout
drm/atomic: Verify connector->funcs != NULL when clearing states
drm/fb_helper: Fix references to dev->mode_config.num_connector
drm/i915/fbdev: Fix num_connector references in intel_fb_initial_config()
drm/amdgpu: Fix hdmi deep color support.
drm/amdgpu: use drm_mode_vrefresh() rather than mode->vrefresh
drm/vmwgfx: Fix order of operation
drm/vmwgfx: use vmw_cmd_dx_cid_check for query commands.
drm/vmwgfx: Enable SVGA_3D_CMD_DX_SET_PREDICATION
drm/gma500: Fix possible out of bounds read
sunrpc: fix stripping of padded MIC tokens
xen: use same main loop for counting and remapping pages
xen/events: Don't move disabled irqs
powerpc/eeh: Restore initial state in eeh_pe_reset_and_recover()
Revert "powerpc/eeh: Fix crash in eeh_add_device_early() on Cell"
powerpc/eeh: Don't report error in eeh_pe_reset_and_recover()
powerpc/book3s64: Fix branching to OOL handlers in relocatable kernel
pipe: limit the per-user amount of pages allocated in pipes
QE-UART: add "fsl,t1040-ucc-uart" to of_device_id
wait/ptrace: assume __WALL if the child is traced
mm: use phys_addr_t for reserve_bootmem_region() arguments
media: v4l2-compat-ioctl32: fix missing reserved field copy in put_v4l2_create32
PCI: Disable all BAR sizing for devices with non-compliant BARs
pinctrl: exynos5440: Use off-stack memory for pinctrl_gpio_range
clk: bcm2835: divider value has to be 1 or more
clk: bcm2835: pll_off should only update CM_PLL_ANARST
clk: at91: fix check of clk_register() returned value
clk: bcm2835: Fix PLL poweron
cpuidle: Fix cpuidle_state_is_coupled() argument in cpuidle_enter()
cpuidle: Indicate when a device has been unregistered
PM / Runtime: Fix error path in pm_runtime_force_resume()
mfd: intel_soc_pmic_core: Terminate panel control GPIO lookup table correctly
mfd: intel-lpss: Save register context on suspend
hwmon: (ads7828) Enable internal reference
aacraid: Fix for KDUMP driver hang
aacraid: Fix for aac_command_thread hang
aacraid: Relinquish CPU during timeout wait
rtlwifi: pci: use dev_kfree_skb_irq instead of kfree_skb in rtl_pci_reset_trx_ring
rtlwifi: Fix logic error in enter/exit power-save mode
rtlwifi: btcoexist: Implement antenna selection
rtlwifi: rtl8723be: Add antenna select module parameter
hwrng: exynos - Fix unbalanced PM runtime put on timeout error path
ath5k: Change led pin configuration for compaq c700 laptop
ath10k: fix kernel panic, move arvifs list head init before htt init
ath10k: fix rx_channel during hw reconfigure
ath10k: fix firmware assert in monitor mode
ath10k: fix debugfs pktlog_filter write
ath9k: Fix LED polarity for some Mini PCI AR9220 MB92 cards.
ath9k: Add a module parameter to invert LED polarity.
ARM: dts: imx35: restore existing used clock enumeration
ARM: dts: exynos: Add interrupt line to MAX8997 PMIC on exynos4210-trats
ARM: dts: at91: fix typo in sama5d2 PIN_PD24 description
ARM: mvebu: fix GPIO config on the Linksys boards
Input: uinput - handle compat ioctl for UI_SET_PHYS
ASoC: ak4642: Enable cache usage to fix crashes on resume
affs: fix remount failure when there are no options changed
MIPS: VDSO: Build with `-fno-strict-aliasing'
MIPS: lib: Mark intrinsics notrace
MIPS: Build microMIPS VDSO for microMIPS kernels
MIPS: Fix sigreturn via VDSO on microMIPS kernel
MIPS: ptrace: Prevent writes to read-only FCSR bits
MIPS: ptrace: Fix FP context restoration FCSR regression
MIPS: Disable preemption during prctl(PR_SET_FP_MODE, ...)
MIPS: Prevent "restoration" of MSA context in non-MSA kernels
MIPS: Fix MSA ld_*/st_* asm macros to use PTR_ADDU
MIPS: Use copy_s.fmt rather than copy_u.fmt
MIPS: Loongson-3: Reserve 32MB for RS780E integrated GPU
MIPS: Reserve nosave data for hibernation
MIPS: ath79: make bootconsole wait for both THRE and TEMT
MIPS: Sync icache & dcache in set_pte_at
MIPS: Handle highmem pages in __update_cache
MIPS: Flush highmem pages in __flush_dcache_page
MIPS: Fix watchpoint restoration
MIPS: Fix uapi include in exported asm/siginfo.h
MIPS: Fix siginfo.h to use strict posix types
MIPS: Avoid using unwind_stack() with usermode
MIPS: Don't unwind to user mode with EVA
MIPS: MSA: Fix a link error on `_init_msa_upper' with older GCC
MIPS: math-emu: Fix jalr emulation when rd == $0
MIPS64: R6: R2 emulation bugfix
coresight: etb10: adjust read pointer only when needed
coresight: configuring ETF in FIFO mode when acting as link
coresight: tmc: implementing TMC-ETF AUX space API
coresight: moving struct cs_buffers to header file
coresight: tmc: keep track of memory width
coresight: tmc: make sysFS and Perf mode mutually exclusive
coresight: tmc: dump system memory content only when needed
coresight: tmc: adding mode of operation for link/sinks
coresight: tmc: getting rid of multiple read access
coresight: tmc: allocating memory when needed
coresight: tmc: making prepare/unprepare functions generic
coresight: tmc: splitting driver in ETB/ETF and ETR components
coresight: tmc: cleaning up header file
coresight: tmc: introducing new header file
coresight: tmc: clearly define number of transfers per burst
coresight: tmc: re-implementing tmc_read_prepare/unprepare() functions
coresight: tmc: waiting for TMCReady bit before programming
coresight: tmc: modifying naming convention
coresight: tmc: adding sysFS management entries
coresight: etm4x: add tracer ID for A72 Maia processor.
coresight: etb10: fixing the right amount of words to read
coresight: stm: adding driver for CoreSight STM component
coresight: adding path for STM device
coresight: etm4x: modify q_support type
coresight: no need to do the forced type conversion
coresight: removing gratuitous boot time log messages
coresight: etb10: splitting sysFS "status" entry
coresight: moving coresight_simple_func() to header file
coresight: etm4x: implementing the perf PMU API
coresight: etm4x: implementing user/kernel mode tracing
coresight: etm4x: moving etm_drvdata::enable to atomic field
coresight: etm4x: unlocking tracers in default arch init
coresight: etm4x: splitting etmv4 default configuration
coresight: etm4x: splitting struct etmv4_drvdata
coresight: etm4x: adding config and traceid registers
coresight: etm4x: moving sysFS entries to a dedicated file
stm class: Support devices that override software assigned masters
stm class: Remove unnecessary pointer increment
stm class: Fix stm device initialization order
stm class: Do not leak the chrdev in error path
stm class: Remove a pointless line
stm class: stm_heartbeat: Make nr_devs parameter read-only
stm class: dummy_stm: Make nr_dummies parameter read-only
MAINTAINERS: Add a git tree for the stm class
perf/ring_buffer: Document AUX API usage
perf/core: Free AUX pages in unmap path
perf/ring_buffer: Refuse to begin AUX transaction after rb->aux_mmap_count drops
perf auxtrace: Add perf_evlist pointer to *info_priv_size()
perf session: Simplify tool stubs
perf inject: Hit all DSOs for AUX data in JIT and other cases
perf tools: tracepoint_error() can receive e=NULL, robustify it
perf evlist: Make perf_evlist__open() open evsels with their cpus and threads (like perf record does)
perf evsel: Introduce disable() method
perf cpumap: Auto initialize cpu__max_{node,cpu}
drivers/hwtracing: make coresight-etm-perf.c explicitly non-modular
drivers/hwtracing: make coresight-* explicitly non-modular
coresight: introducing a global trace ID function
coresight: etm-perf: new PMU driver for ETM tracers
coresight: etb10: implementing AUX API
coresight: etb10: adding operation mode for sink->enable()
coresight: etb10: moving to local atomic operations
coresight: etm3x: implementing perf_enable/disable() API
coresight: etm3x: implementing user/kernel mode tracing
coresight: etm3x: consolidating initial config
coresight: etm3x: changing default trace configuration
coresight: etm3x: set progbit to stop trace collection
coresight: etm3x: adding operation mode for etm_enable()
coresight: etm3x: splitting struct etm_drvdata
coresight: etm3x: unlocking tracers in default arch init
coresight: etm3x: moving sysFS entries to dedicated file
coresight: etm3x: moving etm_readl/writel to header file
coresight: moving PM runtime operations to core framework
coresight: add API to get sink from path
coresight: associating path with session rather than tracer
coresight: etm4x: Check every parameter used by dma_xx_coherent.
coresight: "DEVICE_ATTR_RO" should defined as static.
coresight: implementing 'cpu_id()' API
coresight: removing bind/unbind options from sysfs
coresight: remove csdev's link from topology
coresight: release reference taken by 'bus_find_device()'
coresight: coresight_unregister() function cleanup
coresight: fixing lockdep error
coresight: fixing indentation problem
coresight: Fix a typo in Kconfig
coresight: checking for NULL string in coresight_name_match()
perf/core: Disable the event on a truncated AUX record
perf/core: Don't leak event in the syscall error path
perf/core: Fix perf_sched_count derailment
stm class: dummy_stm: Add link callback for fault injection
stm class: Plug stm device's unlink callback
stm class: Fix a race in unlinking
stm class: Fix unbalanced module/device refcounting
stm class: Guard output assignment against concurrency
stm class: Fix unlocking braino in the error path
stm class: Add heartbeat stm source device
stm class: dummy_stm: Create multiple devices
stm class: Support devices with multiple instances
stm class: Use driver's packet callback return value
stm class: Prevent user-controllable allocations
stm class: Fix link list locking
stm class: Fix locking in unbinding policy path
stm class: Select CONFIG_SRCU
stm class: Hide STM-specific options if STM is disabled
perf: Synchronously free aux pages in case of allocation failure
Linux 4.4.12
kbuild: move -Wunused-const-variable to W=1 warning level
Revert "scsi: fix soft lockup in scsi_remove_target() on module removal"
scsi: Add intermediate STARGET_REMOVE state to scsi_target_state
hpfs: implement the show_options method
hpfs: fix remount failure when there are no options changed
UBI: Fix static volume checks when Fastmap is used
SIGNAL: Move generic copy_siginfo() to signal.h
thunderbolt: Fix double free of drom buffer
IB/srp: Fix a debug kernel crash
ALSA: hda - Fix headset mic detection problem for one Dell machine
ALSA: hda/realtek - Add support for ALC295/ALC3254
ALSA: hda - Fix headphone noise on Dell XPS 13 9360
ALSA: hda/realtek - New codecs support for ALC234/ALC274/ALC294
mcb: Fixed bar number assignment for the gdd
clk: bcm2835: add locking to pll*_on/off methods
locking,qspinlock: Fix spin_is_locked() and spin_unlock_wait()
serial: samsung: Reorder the sequence of clock control when call s3c24xx_serial_set_termios()
serial: 8250_mid: recognize interrupt source in handler
serial: 8250_mid: use proper bar for DNV platform
serial: 8250_pci: fix divide error bug if baud rate is 0
Fix OpenSSH pty regression on close
tty/serial: atmel: fix hardware handshake selection
TTY: n_gsm, fix false positive WARN_ON
tty: vt, return error when con_startup fails
xen/x86: actually allocate legacy interrupts on PV guests
KVM: x86: mask CPUID(0xD,0x1).EAX against host value
MIPS: KVM: Fix timer IRQ race when writing CP0_Compare
MIPS: KVM: Fix timer IRQ race when freezing timer
KVM: x86: fix ordering of cr0 initialization code in vmx_cpu_reset
KVM: MTRR: remove MSR 0x2f8
staging: comedi: das1800: fix possible NULL dereference
usb: gadget: udc: core: Fix argument of dev_err() in usb_gadget_map_request()
USB: leave LPM alone if possible when binding/unbinding interface drivers
usb: misc: usbtest: fix pattern tests for scatterlists.
usb: f_mass_storage: test whether thread is running before starting another
usb: gadget: f_fs: Fix EFAULT generation for async read operations
USB: serial: option: add even more ZTE device ids
USB: serial: option: add more ZTE device ids
USB: serial: option: add support for Cinterion PH8 and AHxx
USB: serial: io_edgeport: fix memory leaks in probe error path
USB: serial: io_edgeport: fix memory leaks in attach error path
USB: serial: quatech2: fix use-after-free in probe error path
USB: serial: keyspan: fix use-after-free in probe error path
USB: serial: mxuport: fix use-after-free in probe error path
mei: bus: call mei_cl_read_start under device lock
mei: amthif: discard not read messages
mei: fix NULL dereferencing during FW initiated disconnection
Bluetooth: vhci: Fix race at creating hci device
Bluetooth: vhci: purge unhandled skbs
Bluetooth: vhci: fix open_timeout vs. hdev race
mmc: sdhci-pci: Remove MMC_CAP_BUS_WIDTH_TEST for Intel controllers
mmc: longer timeout for long read time quirk
dell-rbtn: Ignore ACPI notifications if device is suspended
ACPI / osi: Fix an issue that acpi_osi=!* cannot disable ACPICA internal strings
mmc: sdhci-acpi: Remove MMC_CAP_BUS_WIDTH_TEST for Intel controllers
mmc: mmc: Fix partition switch timeout for some eMMCs
can: fix handling of unmodifiable configuration options
irqchip/gic-v3: Configure all interrupts as non-secure Group-1
irqchip/gic: Ensure ordering between read of INTACK and shared data
Input: pwm-beeper - fix - scheduling while atomic
mfd: omap-usb-tll: Fix scheduling while atomic BUG
sched/loadavg: Fix loadavg artifacts on fully idle and on fully loaded systems
clk: qcom: msm8916: Fix crypto clock flags
crypto: sun4i-ss - Replace spinlock_bh by spin_lock_irq{save|restore}
crypto: talitos - fix ahash algorithms registration
crypto: caam - fix caam_jr_alloc() ret code
ring-buffer: Prevent overflow of size in ring_buffer_resize()
ring-buffer: Use long for nr_pages to avoid overflow failures
asix: Fix offset calculation in asix_rx_fixup() causing slow transmissions
fs/cifs: correctly to anonymous authentication for the NTLM(v2) authentication
fs/cifs: correctly to anonymous authentication for the NTLM(v1) authentication
fs/cifs: correctly to anonymous authentication for the LANMAN authentication
fs/cifs: correctly to anonymous authentication via NTLMSSP
remove directory incorrectly tries to set delete on close on non-empty directories
kvm: arm64: Fix EC field in inject_abt64
arm/arm64: KVM: Enforce Break-Before-Make on Stage-2 page tables
arm64: cpuinfo: Missing NULL terminator in compat_hwcap_str
arm64: Implement pmdp_set_access_flags() for hardware AF/DBM
arm64: Implement ptep_set_access_flags() for hardware AF/DBM
arm64: Ensure pmd_present() returns false after pmd_mknotpresent()
arm64: Fix typo in the pmdp_huge_get_and_clear() definition
ext4: iterate over buffer heads correctly in move_extent_per_page()
perf test: Fix build of BPF and LLVM on older glibc libraries
perf/core: Fix perf_event_open() vs. execve() race
perf/x86/intel/pt: Generate PMI in the STOP region as well
Btrfs: don't use src fd for printk
UPSTREAM: mac80211: fix "warning: ‘target_metric’ may be used uninitialized"
Revert "drivers: power: use 'current' instead of 'get_current()'"
cpufreq: interactive: drop cpufreq_{get,put}_global_kobject func calls
Revert "cpufreq: interactive: build fixes for 4.4"
xt_qtaguid: Fix panic caused by processing non-full socket.
fiq_debugger: Add fiq_debugger.disable option
UPSTREAM: procfs: fixes pthread cross-thread naming if !PR_DUMPABLE
FROMLIST: wlcore: Disable filtering in AP role
Revert "drivers: power: Add watchdog timer to catch drivers which lockup during suspend."
fiq_debugger: Add option to apply uart overlay by FIQ_DEBUGGER_UART_OVERLAY
Revert "Recreate asm/mach/mmc.h include file"
Revert "ARM: Add 'card_present' state to mmc_platfrom_data"
usb: dual-role: make stub functions inline
Revert "mmc: Add status IRQ and status callback function to mmc platform data"
quick selinux support for tracefs
Revert "hid-multitouch: Filter collections by application usage."
Revert "HID: steelseries: validate output report details"
xt_qtaguid: Fix panic caused by synack processing
Revert "mm: vmscan: Add a debug file for shrinkers"
Revert "SELinux: Enable setting security contexts on rootfs inodes."
Revert "SELinux: build fix for 4.1"
fuse: Add support for d_canonical_path
vfs: change d_canonical_path to take two paths
android: recommended.cfg: remove CONFIG_UID_STAT
netfilter: xt_qtaguid: seq_printf fixes
Revert "misc: uidstat: Adding uid stat driver to collect network statistics."
Revert "net: activity_stats: Add statistics for network transmission activity"
Revert "net: activity_stats: Stop using obsolete create_proc_read_entry api"
Revert "misc: uidstat: avoid create_stat() race and blockage."
Revert "misc: uidstat: Remove use of obsolete create_proc_read_entry api"
Revert "misc seq_printf fixes for 4.4"
Revert "misc: uid_stat: Include linux/atomic.h instead of asm/atomic.h"
Revert "net: socket ioctl to reset connections matching local address"
Revert "net: fix iterating over hashtable in tcp_nuke_addr()"
Revert "net: fix crash in tcp_nuke_addr()"
Revert "Don't kill IPv4 sockets when killing IPv6 sockets was requested."
Revert "tcp: Fix IPV6 module build errors"
android: base-cfg: remove CONFIG_SWITCH
Revert "switch: switch class and GPIO drivers."
Revert "drivers: switch: remove S_IWUSR from dev_attr"
ANDROID: base-cfg: enable CONFIG_IP_NF_NAT
BACKPORT: selinux: restrict kernel module loading
android: base-cfg: enable CONFIG_QUOTA
Conflicts:
Documentation/sysctl/kernel.txt
drivers/cpufreq/cpufreq_interactive.c
drivers/hwtracing/coresight/Kconfig
drivers/hwtracing/coresight/Makefile
drivers/hwtracing/coresight/coresight-etm4x.c
drivers/hwtracing/coresight/coresight-etm4x.h
drivers/hwtracing/coresight/coresight-priv.h
drivers/hwtracing/coresight/coresight-stm.c
drivers/hwtracing/coresight/coresight-tmc.c
drivers/mmc/core/core.c
include/linux/coresight-stm.h
include/linux/coresight.h
include/linux/msm_mdp.h
include/uapi/linux/coresight-stm.h
kernel/events/core.c
kernel/sched/fair.c
net/Makefile
net/ipv4/netfilter/arp_tables.c
net/ipv4/netfilter/ip_tables.c
net/ipv4/tcp.c
net/ipv6/netfilter/ip6_tables.c
net/netfilter/xt_quota2.c
sound/core/pcm.c
Change-Id: I17aa0002815014e9bddc47e67769a53c15768a99
Signed-off-by: Runmin Wang <runminw@codeaurora.org>
|
||
|
Dmitry Shmidt
|
441e10ac4c | Merge remote-tracking branch 'common/android-4.4' into android-4.4.y | ||
|
Patrick Bellasi
|
af14760e19 |
FIXUP: sched/tune: fix accounting for runnable tasks
Contains:
sched/tune: fix accounting for runnable tasks (1/5)
The accounting for tasks into boost groups of different CPUs is currently
broken mainly because:
a) we do not properly track the change of boost group of a RUNNABLE task
b) there are race conditions between migration code and accounting code
This patch provides a fixes to ensure enqueue/dequeue
accounting also for throttled tasks.
Without this patch is can happen that a task is enqueued into a throttled
RQ thus not being accounted for the boosting of the corresponding RQ.
We could argue that a throttled task should not boost a CPU, however:
a) properly implementing CPU boosting considering throttled tasks will
increase a lot the complexity of the solution
b) it's not easy to quantify the benefits introduced by such a more
complex solution
Since task throttling requires the usage of the CFS bandwidth controller,
which is not widely used on mobile systems (at least not by Android kernels
so far), for the time being we go for the simple solution and boost also
for throttled RQs.
sched/tune: fix accounting for runnable tasks (2/5)
This patch provides the code required to enforce proper locking.
A per boost group spinlock has been added to grant atomic
accounting of tasks as well as to serialise enqueue/dequeue operations,
triggered by tasks migrations, with cgroups's attach/detach operations.
sched/tune: fix accounting for runnable tasks (3/5)
This patch adds cgroups {allow,can,cancel}_attach callbacks.
Since a task can be migrated between boost groups while it's running,
the CGroups's attach callbacks have been added to properly migrate
boost contributions of RUNNABLE tasks.
The RQ's lock is used to serialise enqueue/dequeue operations, triggered
by tasks migrations, with cgroups's attach/detach operations. While the
SchedTune's CPU lock is used to grant atrocity of the accounting within
the CPU.
NOTE: the current implementation does not allows a concurrent CPU migration
and CGroups change.
sched/tune: fix accounting for runnable tasks (4/5)
This fixes accounting for exiting tasks by adding a dedicated call early
in the do_exit() syscall, which disables SchedTune accounting as soon as a
task is flagged PF_EXITING.
This flag is set before the multiple dequeue/enqueue dance triggered
by cgroup_exit() which is useful only to inject useless tasks movements
thus increasing possibilities for race conditions with the migration code.
The schedtune_exit_task() call does the last dequeue of a task from its
current boost group. This is a solution more aligned with what happens in
mainline kernels (>v4.4) where the exit_cgroup does not move anymore a dying
task to the root control group.
sched/tune: fix accounting for runnable tasks (5/5)
To avoid accounting issues at startup, this patch disable the SchedTune
accounting until the required data structures have been properly
initialized.
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
[jstultz: fwdported to 4.4]
Signed-off-by: John Stultz <john.stultz@linaro.org>
|
||
|
Oleg Nesterov
|
0eea2e24fc |
wait/ptrace: assume __WALL if the child is traced
commit bf959931ddb88c4e4366e96dd22e68fa0db9527c upstream.
The following program (simplified version of generated by syzkaller)
#include <pthread.h>
#include <unistd.h>
#include <sys/ptrace.h>
#include <stdio.h>
#include <signal.h>
void *thread_func(void *arg)
{
ptrace(PTRACE_TRACEME, 0,0,0);
return 0;
}
int main(void)
{
pthread_t thread;
if (fork())
return 0;
while (getppid() != 1)
;
pthread_create(&thread, NULL, thread_func, NULL);
pthread_join(thread, NULL);
return 0;
}
creates an unreapable zombie if /sbin/init doesn't use __WALL.
This is not a kernel bug, at least in a sense that everything works as
expected: debugger should reap a traced sub-thread before it can reap the
leader, but without __WALL/__WCLONE do_wait() ignores sub-threads.
Unfortunately, it seems that /sbin/init in most (all?) distributions
doesn't use it and we have to change the kernel to avoid the problem.
Note also that most init's use sys_waitid() which doesn't allow __WALL, so
the necessary user-space fix is not that trivial.
This patch just adds the "ptrace" check into eligible_child(). To some
degree this matches the "tsk->ptrace" in exit_notify(), ->exit_signal is
mostly ignored when the tracee reports to debugger. Or WSTOPPED, the
tracer doesn't need to set this flag to wait for the stopped tracee.
This obviously means the user-visible change: __WCLONE and __WALL no
longer have any meaning for debugger. And I can only hope that this won't
break something, but at least strace/gdb won't suffer.
We could make a more conservative change. Say, we can take __WCLONE into
account, or !thread_group_leader(). But it would be nice to not
complicate these historical/confusing checks.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Jan Kratochvil <jan.kratochvil@redhat.com>
Cc: "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com>
Cc: Pedro Alves <palves@redhat.com>
Cc: Roland McGrath <roland@hack.frob.com>
Cc: <syzkaller@googlegroups.com>
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>
|
||
|
Liam Mark
|
21f86651a6 |
android/lowmemorykiller: Ignore tasks with freed mm
A killed task can stay in the task list long after its memory has been returned to the system, therefore ignore any tasks whose mm struct has been freed. Change-Id: I76394b203b4ab2312437c839976f0ecb7b6dde4e CRs-fixed: 450383 Signed-off-by: Liam Mark <lmark@codeaurora.org> |
||
|
Tingting Yang
|
77f8a75933 |
msm: move printk out of spin lock low_water_lock
cpu3 stuck in printk more time in spin lock low_water_lock cause cpu0 get spin lock fail and system crashed. CRs-Fixed: 521570 Change-Id: I75356a4b4171ae2888ce6cce792f569b5ca8cdcf Signed-off-by: Tingting Yang <tingting@codeaurora.org> Signed-off-by: Prasad Sodagudi <psodagud@codeaurora.org> |
||
|
Srivatsa Vaddagiri
|
2a7d718b3d |
sched: window-stats: Fix exit race
Exiting tasks are removed from tasklist and hence at some point will become invisible to do_each_thread/for_each_thread task iterators. This breaks the functionality of reset_all_windows_stats() which *has* to reset stats for *all* tasks. This patch causes exiting tasks stats to be reset *before* they are removed from tasklist. DONT_ACCOUNT bit in exiting task's ravg.flags is also marked so that their remaining execution time is not accounted in cpu busy time counters (rq->curr/prev_runnable_sum). reset_all_windows_stats() is thus guaranteed to return with all task's stats reset to 0. Change-Id: I5f101156a4f958c1b3f31eb0db8cd06e621b75e9 Signed-off-by: Srivatsa Vaddagiri <vatsa@codeaurora.org> |
||
|
Linus Torvalds
|
53528695ff |
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler changes from Ingo Molnar:
"The main changes in this cycle were:
- sched/fair load tracking fixes and cleanups (Byungchul Park)
- Make load tracking frequency scale invariant (Dietmar Eggemann)
- sched/deadline updates (Juri Lelli)
- stop machine fixes, cleanups and enhancements for bugs triggered by
CPU hotplug stress testing (Oleg Nesterov)
- scheduler preemption code rework: remove PREEMPT_ACTIVE and related
cleanups (Peter Zijlstra)
- Rework the sched_info::run_delay code to fix races (Peter Zijlstra)
- Optimize per entity utilization tracking (Peter Zijlstra)
- ... misc other fixes, cleanups and smaller updates"
* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (57 commits)
sched: Don't scan all-offline ->cpus_allowed twice if !CONFIG_CPUSETS
sched: Move cpu_active() tests from stop_two_cpus() into migrate_swap_stop()
sched: Start stopper early
stop_machine: Kill cpu_stop_threads->setup() and cpu_stop_unpark()
stop_machine: Kill smp_hotplug_thread->pre_unpark, introduce stop_machine_unpark()
stop_machine: Change cpu_stop_queue_two_works() to rely on stopper->enabled
stop_machine: Introduce __cpu_stop_queue_work() and cpu_stop_queue_two_works()
stop_machine: Ensure that a queued callback will be called before cpu_stop_park()
sched/x86: Fix typo in __switch_to() comments
sched/core: Remove a parameter in the migrate_task_rq() function
sched/core: Drop unlikely behind BUG_ON()
sched/core: Fix task and run queue sched_info::run_delay inconsistencies
sched/numa: Fix task_tick_fair() from disabling numa_balancing
sched/core: Add preempt_count invariant check
sched/core: More notrace annotations
sched/core: Kill PREEMPT_ACTIVE
sched/core, sched/x86: Kill thread_info::saved_preempt_count
sched/core: Simplify preempt_count tests
sched/core: Robustify preemption leak checks
sched/core: Stop setting PREEMPT_ACTIVE
...
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||
|
Paul E. McKenney
|
49f5903b47 |
rcu: Move preemption disabling out of __srcu_read_lock()
Currently, __srcu_read_lock() cannot be invoked from restricted environments because it contains calls to preempt_disable() and preempt_enable(), both of which can invoke lockdep, which is a bad idea in some restricted execution modes. This commit therefore moves the preempt_disable() and preempt_enable() from __srcu_read_lock() to srcu_read_lock(). It also inserts the preempt_disable() and preempt_enable() around the call to __srcu_read_lock() in do_exit(). Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> |
||
|
Peter Zijlstra
|
1dc0fffc48 |
sched/core: Robustify preemption leak checks
When we warn about a preempt_count leak; reset the preempt_count to the known good value such that the problem does not ripple forward. This is most important on x86 which has a per cpu preempt_count that is not saved/restored (after this series). So if you schedule with an invalid (!2*PREEMPT_DISABLE_OFFSET) preempt_count the next task is messed up too. Enforcing this invariant limits the borkage to just the one task. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Frederic Weisbecker <fweisbec@gmail.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Steven Rostedt <rostedt@goodmis.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org> |
||
|
Frans Klaver
|
3da56d1663 |
kernel: exit: fix typo in comment
s,critiera,criteria, While at it, add a comma, because it makes sense grammatically. Signed-off-by: Frans Klaver <fransklaver@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.com> |
||
|
Rik van Riel
|
51229b4953 |
exit,stats: /* obey this comment */
There is a helpful comment in do_exit() that states we sync the mm's RSS info before statistics gathering. The function that does the statistics gathering is called right above that comment. Change the code to obey the comment. Signed-off-by: Rik van Riel <riel@redhat.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Michal Hocko <mhocko@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Johannes Weiner
|
16e951966f |
mm: oom_kill: clean up victim marking and exiting interfaces
Rename unmark_oom_victim() to exit_oom_victim(). Marking and unmarking are related in functionality, but the interface is not symmetrical at all: one is an internal OOM killer function used during the killing, the other is for an OOM victim to signal its own death on exit later on. This has locking implications, see follow-up changes. While at it, rename mark_tsk_oom_victim() to mark_oom_victim(), which is easier on the eye. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: David Rientjes <rientjes@google.com> Acked-by: Michal Hocko <mhocko@suse.cz> Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Dave Chinner <david@fromorbit.com> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Richard Weinberger
|
973f911f55 |
Remove execution domain support
All users of exec_domain are gone, now we can get rid of that abandoned feature. To not break existing userspace we keep a dummy /proc/execdomains file which will always contain "0-0 Linux [kernel]". Signed-off-by: Richard Weinberger <richard@nod.at> |
||
|
Michal Hocko
|
c32b3cbe0d |
oom, PM: make OOM detection in the freezer path raceless
Commit
|
||
|
Michal Hocko
|
49550b6055 |
oom: add helpers for setting and clearing TIF_MEMDIE
This patchset addresses a race which was described in the changelog for
|
||
|
Oleg Nesterov
|
3245d6acab |
exit: fix race between wait_consider_task() and wait_task_zombie()
wait_consider_task() checks EXIT_ZOMBIE after EXIT_DEAD/EXIT_TRACE and
both checks can fail if we race with EXIT_ZOMBIE -> EXIT_DEAD/EXIT_TRACE
change in between, gcc needs to reload p->exit_state after
security_task_wait(). In this case ->notask_error will be wrongly
cleared and do_wait() can hang forever if it was the last eligible
child.
Many thanks to Arne who carefully investigated the problem.
Note: this bug is very old but it was pure theoretical until commit
|
||
|
Linus Torvalds
|
37da7bbbe8 |
Merge tag 'tty-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver updates from Greg KH: "Here's the big tty/serial driver update for 3.19-rc1. There are a number of TTY core changes/fixes in here from Peter Hurley that have all been teted in linux-next for a long time now. There are also the normal serial driver updates as well, full details in the changelog below" * tag 'tty-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (219 commits) serial: pxa: hold port.lock when reporting modem line changes tty-hvsi_lib: Deletion of an unnecessary check before the function call "tty_kref_put" tty: Deletion of unnecessary checks before two function calls n_tty: Fix read_buf race condition, increment read_head after pushing data serial: of-serial: add PM suspend/resume support Revert "serial: of-serial: add PM suspend/resume support" Revert "serial: of-serial: fix up PM ops on no_console_suspend and port type" serial: 8250: don't attempt a trylock if in sysrq serial: core: Add big-endian iotype serial: samsung: use port->fifosize instead of hardcoded values serial: samsung: prefer to use fifosize from driver data serial: samsung: fix style problems serial: samsung: wait for transfer completion before clock disable serial: icom: fix error return code serial: tegra: clean up tty-flag assignments serial: Fix io address assign flow with Fintek PCI-to-UART Product serial: mxs-auart: fix tx_empty against shift register serial: mxs-auart: fix gpio change detection on interrupt serial: mxs-auart: Fix mxs_auart_set_ldisc() serial: 8250_dw: Use 64-bit access for OCTEON. ... |
||
|
Oleg Nesterov
|
6c66e7dba3 |
exit: exit_notify: re-use "dead" list to autoreap current
After the previous change we can add just the exiting EXIT_DEAD task to the "dead" list and remove another release_task(tsk). Signed-off-by: Oleg Nesterov <oleg@redhat.com> Cc: Aaron Tomlin <atomlin@redhat.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Sterling Alexander <stalexan@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Oleg Nesterov
|
482a3767e5 |
exit: reparent: call forget_original_parent() under tasklist_lock
Shift "release dead children" loop from forget_original_parent() to its caller, exit_notify(). It is safe to reap them even if our parent reaps us right after we drop tasklist_lock, those children no longer have any connection to the exiting task. And this allows us to avoid write_lock_irq(tasklist_lock) right after it was released by forget_original_parent(), we can simply call it with tasklist_lock held. While at it, move the comment about forget_original_parent() up to this function. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Cc: Aaron Tomlin <atomlin@redhat.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Sterling Alexander <stalexan@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |