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In audio ion driver, append msm_audio_ to API
populate_upper_32bits to maintain consistency
across other API names in this driver.
Change-Id: I72aace56bf8e80c6dd83f768876253d2c7f334bb
Signed-off-by: Laxminath Kasam <lkasam@codeaurora.org>
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Add changes to expose dump stack functionality which can be used
by driver to dump stack information when it requires.
CRs-Fixed: 943322
Change-Id: I0fde7142dea2c18daf6b1fb0c5ee4bb8a31a6be0
Signed-off-by: Padma, Santhosh Kumar <skpadma@codeaurora.org>
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Use efuse register values, to differentiate between
wcd9326 and wcd9335 codecs.
Change-Id: I68e7ae5eb1717dccd0af975670ac3644304996b9
Signed-off-by: Yeleswarapu Nagaradhesh <nagaradh@codeaurora.org>
Signed-off-by: Simmi Pateriya <simmip@codeaurora.org>
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Update register sequence for low hifi and low power modes
for headphones on wcd9335 codec to achieve better performance.
Change-Id: Icf543df7c4e8ab4cc9222a39bf1df4e6af4ab8ec
Signed-off-by: Phani Kumar Uppalapati <phaniu@codeaurora.org>
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'us' can overflow and can potentially cause unexpected wakeup.
Change it to uint64_t.
Change-Id: I943cbc9d62268ca073e388c287e3b180c0eaa8e3
Signed-off-by: Girish S Ghongdemath <girishsg@codeaurora.org>
Signed-off-by: Maulik Shah <mkshah@codeaurora.org>
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Parse MHI ring information from DT instead of statically allocating
data structure.
This is necessary as different platforms support different
configurations.
Change-Id: I59cd660459d627f93479a11257653611070fd3a4
Signed-off-by: Andrei Danaila <adanaila@codeaurora.org>
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Enable the MHI core driver for communication
between host and device using PCIe as an interconnect
and supporting MHI as the communication protocol.
The driver exposes several kernel space APIs
for use by other kernel entities to interface to
the PCIe device over MHI.
APIs for read and write and other notifications
are supported by this MHI driver.
Support for full power management and device reset
is also included.
CRs-Fixed: 689329
Change-Id: Ibc2fd7c2d5689001485f71b1133ada2c4ca236a9
Signed-off-by: Andrei Danaila <adanaila@codeaurora.org>
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When a deferrable work (INIT_DEFERRABLE_WORK, etc.) is queued via
queue_delayed_work() it's probably intended to run the work item on any
CPU that isn't idle. However, we queue the work to run at a later time
by starting a deferrable timer that binds to whatever CPU the work is
queued on which is same with queue_delayed_work_on(smp_processor_id())
effectively.
As a result WORK_CPU_UNBOUND work items aren't really cpu unbound now.
In fact this is perfectly fine with UP kernel and also won't affect much a
system without dyntick with SMP kernel too as every cpus run timers
periodically. But on SMP systems with dyntick current implementation leads
deferrable timers not very scalable because the timer's base which has
queued the deferrable timer won't wake up till next non-deferrable timer
expires even though there are possible other non idle cpus are running
which are able to run expired deferrable timers.
The deferrable work is a good example of the current implementation's
victim like below.
INIT_DEFERRABLE_WORK(&dwork, fn);
CPU 0 CPU 1
queue_delayed_work(wq, &dwork, HZ);
queue_delayed_work_on(WORK_CPU_UNBOUND);
...
__mod_timer() -> queues timer to the
current cpu's timer
base.
...
tick_nohz_idle_enter() -> cpu enters idle.
A second later
cpu 0 is now in idle. cpu 1 exits idle or wasn't in idle so
now it's in active but won't
cpu 0 won't wake up till next handle cpu unbound deferrable timer
non-deferrable timer expires. as it's in cpu 0's timer base.
To make all cpu unbound deferrable timers are scalable, introduce a common
timer base which is only for cpu unbound deferrable timers to make those
are indeed cpu unbound so that can be scheduled by tick_do_timer_cpu.
This common timer fixes scalability issue of delayed work and all other cpu
unbound deferrable timer using implementations.
Change-Id: I8b6c57d8b6445a76fa02a8cb598a8ef22aef7200
CC: Thomas Gleixner <tglx@linutronix.de>
CC: John Stultz <john.stultz@linaro.org>
CC: Tejun Heo <tj@kernel.org>
[joonwoop@codeaurora.org: timer->base replaced with CPU index so get
the deferrable timer wheel from lock_timer_base() instead of
do_init_timer().]
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>
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Hotplug disables the pmu irq, but if counters are
running in the window before the CPU is hotplugged off
they can overflow and generate an interrupt. Because the
interrupt is disabled, this prevents the cpu from going
down.
Events are stopped during hotplug processing. However,
perf is hooked into the timer tick, and restarts enabled
events on every tick, even if they were stopped. Change
the event state to OFF to prevent this.
CPUs can still be power-collapsed while being hotplugged
off, but hotplug processing will save and restore the correct
state, so don't process power-collapse save/restore while
hotplug is in process.
Processing for stop reads the counters, so a separate call
is no longer needed. Start processing re-enables events so
the from_idle flag is not needed during pmu_enable.
Change-Id: I6a7f5b04955ebba8c4d76547f24e2be4071d7539
Signed-off-by: Neil Leeder <nleeder@codeaurora.org>
[satyap: merge conflict resolution and move changes in
arch/arm64/kernel/perf_event.c to drivers/perf/arm_pmu.c
to align with kernel 4.4]
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>
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PMU irq is disabled when a cpu is hotplugged off
and perf is running. Using cpu_pmu->active_events
to determine if the pmu is running left a window
where it is decremented to 0 in hw_perf_event_destroy,
and then armpmu_release_hardware is called. If a cpu
is hotplugged off in this window it may not disable
its irq. Use a separate flag which is not cleared
until after the irq is released by all online cpus.
The variable needs to be tristate because of the possibility
of a cpu being hotplugged in during this window. In that
case it should not enable its irq when the pmu is being
shut down. Having the GOING_DOWN state allows correct
behavior for cpus both going down and coming up.
Change-Id: I934ba5dec34e681ce8defd7fa7e311b4a2a92c1a
Signed-off-by: Neil Leeder <nleeder@codeaurora.org>
[satyap: merge conflict resolution and move changes in
arch/arm64/kernel/perf_event.c to drivers/perf/arm_pmu.c
to align with kernel 4.4]
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>
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Add notifiers for hotplug and power collapse in perf events.
Preserve counters and user enables across these events.
Disable and enable interrupts across events.
This allows perf-events to be used in an environment where
cores are power collapsing and being hotplugged.
Change-Id: Id27ac3b1c0733677e0bc9740ce7534c3e5fdac7c
Signed-off-by: Neil Leeder <nleeder@codeaurora.org>
[satyap: merge conflict resolution and move changes in
arch/arm64/kernel/perf_event.c to drivers/perf/arm_pmu.c
to align with kernel 4.4]
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>
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Add support for hotplugged cpu cores.
Change-Id: I0538ed67f1ad90bbd0510a7ba137cb6d1ad42172
Signed-off-by: Neil Leeder <nleeder@codeaurora.org>
[satyap: trivial merge conflict resolution]
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>
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While porting kryo CPU PMU driver to kernel 4.4, some functionality
got dropped unintentionally. This commit adds the dropped functionality
back. Also, update driver to be compliant to kernel 4.4.
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>
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Instead of #ifdef, use the IS_ENABLED() macro which correctly
handles if the Kconfig symbol is built-in (=y) or a module (=m).
Also add missing MODULE_LICENSE and MODULE_DESCRIPTION to
f_diag.c to allow building as a module.
Signed-off-by: Jack Pham <jackp@codeaurora.org>
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To allow msm_iommu kernel test compilation, add a
iommu_unmap_range declaration and the corresponding stub
function.
Change-Id: If80918cc01afa7d0df2673f4e1962989af26f4bf
Signed-off-by: Pratik Patel <pratikp@codeaurora.org>
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msm_iommu kernel test has a dependency on
include/linux/msm_iommu_domains.h header file.
Add a snapshot of this file to allow msm_iommu kernel test
compilation.
Change-Id: I2c9b634bdc8a06e51d139fc610c9005d9c93f4ee
Signed-off-by: Pratik Patel <pratikp@codeaurora.org>
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Squash and apply the following touchscreen changes taken from the msm-3.14
kernel branch as of msm-3.14 commit 8139d0b
(ARM: dts: msm: Set flag to manage clks during suspend for msm8996)
421c2f3 input: touchscreen: atmel_maxtouch_ts: delay init call
48e0a07 input: atmel_maxtouch_ts: recover from bootloader
b3ebb61 input: atmel_maxtouch_ts: add support for force cfg update
8467fe3 input: atmel_maxtouch_ts: fix firmware update routines
c83ee59 input: atmel: Secure Touch support
1c7d5e2 input: atmel_maxtouch_ts: fix power up sequence
d4c1ffc input: atmel_maxtouch_ts: add support to ignore CRC
f402790 input: atmel_maxtouch_ts: add support for standard features
9374cef input: atmel_maxtouch_ts: use proper data types
0fbe83e input: atmel_maxtouch_ts: add regulator error conditions
e22d100 input: atmel_maxtouch_ts: add gpio support
63d4b74 input: atmel_maxtouch_ts: add device tree support
575c2fc input: atmel_maxtouch_ts: enable compilation on 3.10 kenrel
Signed-off-by: Alex Sarraf <asarraf@codeaurora.org>
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Git-commit: 482584a6c0d863e04a03837a79c1e79b2769aaee
Git-repo: git://github.com/atmel-maxtouch/maxtouch-v3.0.git
Change-Id: Ifdd872d1aacd5752aab1a218e18e2cbc1582c17f
Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: Amy Maloche <amaloche@codeaurora.org>
[joshc: fixed up INIT_COMPLETION() usage]
Signed-off-by: Josh Cartwright <joshc@codeaurora.org>
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Update the firmware based on strict config ID versioning, rather than
the entire config ID as a 4 byte number. This will also protect
against config ID major number mismatches and packrat id mismatches.
This is a propagated patch from 3.10 kernel.
commit - 458cbab5c53d5141a66590441f9567d67d580c6f,
input: synaptics_dsx_fw_update: update fw based on config id
Change-Id: I1097585d3bd8b6ab753676dc56f268c7ce52680d
Signed-off-by: Himanshu Aggarwal <haggarwa@codeaurora.org>
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Add support for reading configuration ID from the touch controller
during probe and print it. This is required to identify if touch
controller is programmed with correct touch firmware or not.
Change-Id: I155f0392ae67e5f9b184b9cef2a7bbb7666be30d
Signed-off-by: Sudhakar Manapati <smanap@codeaurora.org>
Signed-off-by: Himanshu Aggarwal <haggarwa@codeaurora.org>
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Squash and apply the following touchscreen changes taken from the msm-3.14
kernel branch as of msm-3.14 commit 3bc54cf86b
(Merge "msm: camera: Add dummy sub module in sensor pipeline")
b20792c2 input: synaptics_dsx: Fix security issues
4f3ec831 input: synaptics_dsx: Remove use of deprecated INIT_COMPLETION
8c5bd97f input: synaptics_dsx: change permission for sysfs secure_touch_enable
b22c0b56 input: synaptics_dsx: reconfigure resolution in suspend
0ea26697 touchscreen: synaptics_dsx: set absolute axes for touchscreen
6a021e0a input: synaptics_dsx: handle all controller interrupts
d3de3ed6 input: synaptics_dsx: remove query operation from reinit
2285a8dd input: synaptics_dsx: remove vkey kobject in remove
6817aed5 input: synaptics: Fix to secure touch clock unbalance
44a84a1e input: synaptics_dsx: support for pm ops
41439903 input: synaptics: add support for unprogrammed panels
b029351d input: synaptics: remove outdated header
d065c5e0 input: synaptics: add ability to distinguish touch part
72ca30da input: synaptics_dsx: release pinctrl resources on probe failure
0ab5f1e5 input: synaptics: add NULL pointer check
ad4102c8 input: synaptics: Secure touch clocks
6a77bbed input: synaptics_dsx: fix compilation warning when !CONFIG_PM_*
f3488933 input: synaptics_dsx: reorder device resume sequence
71b65447 input: synaptics_dsx: add support for 2D sensor for soft-keys
610ecdc2 input: synaptics_dsx: fix data sysfs read-write permission
06195779 input: synaptics_dsx: fix up world writable sysfs file
995ed76d input: synaptics_dsx: add ability to identify controller
69a416fe input: synaptic_dsx: configure touch panel boundary coordinates
609eb34b input: synaptics_dsx: correct sysfs permissions
59af5ffb input: synaptics_dsx: remove firmware update at boot
13b71e2f input: synaptic_dsx: stay awake the device during firmware update
dccee682 input: synaptic_dsx: add sysfs entry for force firmware update
a4d13992 input: synaptics: secure touch support
11c70731 input: synaptic_dsx: add debugfs support for suspend/resume
2642f2cb input: synaptics_dsx: add standard features for touch support
72f05e70 input: synaptics_dsx: add dual regulator support
ab390caa input: synaptics_dsx: add device tree support
51898424 input: synaptics_dsx: fix conflicts with other drivers
Signed-off-by: Alex Sarraf <asarraf@codeaurora.org>
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Change-Id: I1df8a7465fdb5c18cf69e0908347fc78ce7dd07c
Git-commit: 67b7a9d78725d5de2a1899095eb0026e15343a62
Git-repo: git://github.com/synaptics-touch/synaptics-dsx-v2.1
Signed-off-by: Alexandra Chin <alexandra.chin@tw.synaptics.com>
Signed-off-by: Amy Maloche <amaloche@codeaurora.org>
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Protect against integer overflows caused by malformed fdt headers.
CRs-Fixed: 749977
Change-Id: I51d87038f520bc761b163d291b0138c513c69a33
Signed-off-by: Vijay Kumar Pendoti <vpendo@codeaurora.org>
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>
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Move kernel data structures to driver and keep the
data structures shared between kernel and user space
in the header file. Move the header to uapi to make
it accesible to user space.
Fix checkpatch errors to replace deprecated functions
and hardcoded error return values.
Change-Id: Ic3312c11ddda9f02da9807a6243206d582281995
Signed-off-by: Jing Lin <jinglin@codeaurora.org>
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Remove unnecessary macros and fix checkpatch errors.
Fix of_* apis to parse gpios and add pinctrl support.
Change-Id: I0ed7e31eb490ccf950e599469ff78338cae137d4
Signed-off-by: Mohan Pallaka <mpallaka@codeaurora.org>
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branch specific modifications.
Change-Id: Ie2b68cf91bb515428ea7e03ca379fb64bec8cc0a
Git-commit: a8ffad52f8811651dbc60811923f6444998b6df2
Git-repo: https://www.codeaurora.org/cgit/quic/la/kernel/msm-3.10/log/?h=github-maxim_sti/A2
[jinglin@codeaurora.org: add subject line to commit text,
remove Kbuild file]
Signed-off-by: Jing Lin <jinglin@codeaurora.org>
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Maxim SmartTouch Imager Touchscreen driver added.
Change-Id: Ia570d7afa09bc081df6d79cd7a2f432867113439
Git-commit: b223650ce7eae499cf1a3474ad9a7019e1e3edf1
Git-repo: https://www.codeaurora.org/cgit/quic/la/kernel/msm-3.10/log/?h=github-maxim_sti/A2
[jinglin@codeaurora.org: add subject line to commit text]
Signed-off-by: Jing Lin <jinglin@codeaurora.org>
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Export sanitized mmc.h and core.h for userspace.
Change-Id: I3a6eadde2023d974b0ce260a77082b01d8ba0b5d
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
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* lsk-44/linux-linaro-lsk-v4.4:
Linux 4.4.3
modules: fix modparam async_probe request
module: wrapper for symbol name.
itimers: Handle relative timers with CONFIG_TIME_LOW_RES proper
posix-timers: Handle relative timers with CONFIG_TIME_LOW_RES proper
timerfd: Handle relative timers with CONFIG_TIME_LOW_RES proper
prctl: take mmap sem for writing to protect against others
xfs: log mount failures don't wait for buffers to be released
Revert "xfs: clear PF_NOFREEZE for xfsaild kthread"
xfs: inode recovery readahead can race with inode buffer creation
libxfs: pack the agfl header structure so XFS_AGFL_SIZE is correct
ovl: setattr: check permissions before copy-up
ovl: root: copy attr
ovl: check dentry positiveness in ovl_cleanup_whiteouts()
ovl: use a minimal buffer in ovl_copy_xattr
ovl: allow zero size xattr
futex: Drop refcount if requeue_pi() acquired the rtmutex
devm_memremap_release(): fix memremap'd addr handling
ipc/shm: handle removed segments gracefully in shm_mmap()
intel_scu_ipcutil: underflow in scu_reg_access()
mm,thp: khugepaged: call pte flush at the time of collapse
dump_stack: avoid potential deadlocks
radix-tree: fix oops after radix_tree_iter_retry
drivers/hwspinlock: fix race between radix tree insertion and lookup
radix-tree: fix race in gang lookup
MAINTAINERS: return arch/sh to maintained state, with new maintainers
memcg: only free spare array when readers are done
numa: fix /proc/<pid>/numa_maps for hugetlbfs on s390
fs/hugetlbfs/inode.c: fix bugs in hugetlb_vmtruncate_list()
scripts/bloat-o-meter: fix python3 syntax error
dma-debug: switch check from _text to _stext
m32r: fix m32104ut_defconfig build fail
xhci: Fix list corruption in urb dequeue at host removal
Revert "xhci: don't finish a TD if we get a short-transfer event mid TD"
iommu/vt-d: Clear PPR bit to ensure we get more page request interrupts
iommu/vt-d: Fix 64-bit accesses to 32-bit DMAR_GSTS_REG
iommu/vt-d: Fix mm refcounting to hold mm_count not mm_users
iommu/amd: Correct the wrong setting of alias DTE in do_attach
iommu/vt-d: Don't skip PCI devices when disabling IOTLB
Input: vmmouse - fix absolute device registration
string_helpers: fix precision loss for some inputs
Input: i8042 - add Fujitsu Lifebook U745 to the nomux list
Input: elantech - mark protocols v2 and v3 as semi-mt
mm: fix regression in remap_file_pages() emulation
mm: replace vma_lock_anon_vma with anon_vma_lock_read/write
mm: fix mlock accouting
libnvdimm: fix namespace object confusion in is_uuid_busy()
mm: soft-offline: check return value in second __get_any_page() call
perf kvm record/report: 'unprocessable sample' error while recording/reporting guest data
KVM: PPC: Fix ONE_REG AltiVec support
KVM: PPC: Fix emulation of H_SET_DABR/X on POWER8
KVM: arm/arm64: Fix reference to uninitialised VGIC
arm64: dma-mapping: fix handling of devices registered before arch_initcall
ARM: OMAP2+: Fix ppa_zero_params and ppa_por_params for rodata
ARM: OMAP2+: Fix save_secure_ram_context for rodata
ARM: OMAP2+: Fix l2dis_3630 for rodata
ARM: OMAP2+: Fix l2_inv_api_params for rodata
ARM: OMAP2+: Fix wait_dll_lock_timed for rodata
ARM: dts: at91: sama5d4ek: add phy address and IRQ for macb0
ARM: dts: at91: sama5d4 xplained: fix phy0 IRQ type
ARM: dts: at91: sama5d4: fix instance id of DBGU
ARM: dts: at91: sama5d4 xplained: properly mux phy interrupt
ARM: dts: omap5-board-common: enable rtc and charging of backup battery
ARM: dts: Fix omap5 PMIC control lines for RTC writes
ARM: dts: Fix wl12xx missing clocks that cause hangs
ARM: nomadik: fix up SD/MMC DT settings
ARM: 8517/1: ICST: avoid arithmetic overflow in icst_hz()
ARM: 8519/1: ICST: try other dividends than 1
arm64: mm: avoid calling apply_to_page_range on empty range
ARM: mvebu: remove duplicated regulator definition in Armada 388 GP
powerpc/ioda: Set "read" permission when "write" is set
powerpc/powernv: Fix stale PE primary bus
powerpc/eeh: Fix stale cached primary bus
powerpc/eeh: Fix PE location code
SUNRPC: Fixup socket wait for memory
udf: Check output buffer length when converting name to CS0
udf: Prevent buffer overrun with multi-byte characters
udf: limit the maximum number of indirect extents in a row
pNFS/flexfiles: Fix an XDR encoding bug in layoutreturn
nfs: Fix race in __update_open_stateid()
pNFS/flexfiles: Fix an Oopsable typo in ff_mirror_match_fh()
NFS: Fix attribute cache revalidation
cifs: fix erroneous return value
cifs_dbg() outputs an uninitialized buffer in cifs_readdir()
cifs: fix race between call_async() and reconnect()
cifs: Ratelimit kernel log messages
iio: inkern: fix a NULL dereference on error
iio: pressure: mpl115: fix temperature offset sign
iio: light: acpi-als: Report data as processed
iio: dac: mcp4725: set iio name property in sysfs
iio: add IIO_TRIGGER dependency to STK8BA50
iio: add HAS_IOMEM dependency to VF610_ADC
iio-light: Use a signed return type for ltr501_match_samp_freq()
iio:adc:ti_am335x_adc Fix buffered mode by identifying as software buffer.
iio: adis_buffer: Fix out-of-bounds memory access
scsi: fix soft lockup in scsi_remove_target() on module removal
SCSI: Add Marvell Console to VPD blacklist
scsi_dh_rdac: always retry MODE SELECT on command lock violation
drivers/scsi/sg.c: mark VMA as VM_IO to prevent migration
SCSI: fix crashes in sd and sr runtime PM
iscsi-target: Fix potential dead-lock during node acl delete
scsi: add Synology to 1024 sector blacklist
klist: fix starting point removed bug in klist iterators
tracepoints: Do not trace when cpu is offline
tracing: Fix freak link error caused by branch tracer
perf tools: tracepoint_error() can receive e=NULL, robustify it
tools lib traceevent: Fix output of %llu for 64 bit values read on 32 bit machines
ptrace: use fsuid, fsgid, effective creds for fs access checks
Btrfs: fix direct IO requests not reporting IO error to user space
Btrfs: fix hang on extent buffer lock caused by the inode_paths ioctl
Btrfs: fix page reading in extent_same ioctl leading to csum errors
Btrfs: fix invalid page accesses in extent_same (dedup) ioctl
btrfs: properly set the termination value of ctx->pos in readdir
Revert "btrfs: clear PF_NOFREEZE in cleaner_kthread()"
Btrfs: fix fitrim discarding device area reserved for boot loader's use
btrfs: handle invalid num_stripes in sys_array
ext4: don't read blocks from disk after extents being swapped
ext4: fix potential integer overflow
ext4: fix scheduling in atomic on group checksum failure
serial: omap: Prevent DoS using unprivileged ioctl(TIOCSRS485)
serial: 8250_pci: Add Intel Broadwell ports
tty: Add support for PCIe WCH382 2S multi-IO card
pty: make sure super_block is still valid in final /dev/tty close
pty: fix possible use after free of tty->driver_data
staging/speakup: Use tty_ldisc_ref() for paste kworker
phy: twl4030-usb: Fix unbalanced pm_runtime_enable on module reload
phy: twl4030-usb: Relase usb phy on unload
ALSA: seq: Fix double port list deletion
ALSA: seq: Fix leak of pool buffer at concurrent writes
ALSA: pcm: Fix rwsem deadlock for non-atomic PCM stream
ALSA: hda - Cancel probe work instead of flush at remove
x86/mm: Fix vmalloc_fault() to handle large pages properly
x86/uaccess/64: Handle the caching of 4-byte nocache copies properly in __copy_user_nocache()
x86/uaccess/64: Make the __copy_user_nocache() assembly code more readable
x86/mm/pat: Avoid truncation when converting cpa->numpages to address
x86/mm: Fix types used in pgprot cacheability flags translations
Linux 4.4.2
HID: multitouch: fix input mode switching on some Elan panels
mm, vmstat: fix wrong WQ sleep when memory reclaim doesn't make any progress
zsmalloc: fix migrate_zspage-zs_free race condition
zram: don't call idr_remove() from zram_remove()
zram: try vmalloc() after kmalloc()
zram/zcomp: use GFP_NOIO to allocate streams
rtlwifi: rtl8821ae: Fix 5G failure when EEPROM is incorrectly encoded
rtlwifi: rtl8821ae: Fix errors in parameter initialization
crypto: marvell/cesa - fix test in mv_cesa_dev_dma_init()
crypto: atmel-sha - remove calls of clk_prepare() from atomic contexts
crypto: atmel-sha - fix atmel_sha_remove()
crypto: algif_skcipher - Do not set MAY_BACKLOG on the async path
crypto: algif_skcipher - Do not dereference ctx without socket lock
crypto: algif_skcipher - Do not assume that req is unchanged
crypto: user - lock crypto_alg_list on alg dump
EVM: Use crypto_memneq() for digest comparisons
crypto: algif_hash - wait for crypto_ahash_init() to complete
crypto: shash - Fix has_key setting
crypto: chacha20-ssse3 - Align stack pointer to 64 bytes
crypto: caam - make write transactions bufferable on PPC platforms
crypto: algif_skcipher - sendmsg SG marking is off by one
crypto: algif_skcipher - Load TX SG list after waiting
crypto: crc32c - Fix crc32c soft dependency
crypto: algif_skcipher - Fix race condition in skcipher_check_key
crypto: algif_hash - Fix race condition in hash_check_key
crypto: af_alg - Forbid bind(2) when nokey child sockets are present
crypto: algif_skcipher - Remove custom release parent function
crypto: algif_hash - Remove custom release parent function
crypto: af_alg - Allow af_af_alg_release_parent to be called on nokey path
ahci: Intel DNV device IDs SATA
libata: disable forced PORTS_IMPL for >= AHCI 1.3
crypto: algif_skcipher - Add key check exception for cipher_null
crypto: skcipher - Add crypto_skcipher_has_setkey
crypto: algif_hash - Require setkey before accept(2)
crypto: hash - Add crypto_ahash_has_setkey
crypto: algif_skcipher - Add nokey compatibility path
crypto: af_alg - Add nokey compatibility path
crypto: af_alg - Fix socket double-free when accept fails
crypto: af_alg - Disallow bind/setkey/... after accept(2)
crypto: algif_skcipher - Require setkey before accept(2)
sched: Fix crash in sched_init_numa()
ext4 crypto: add missing locking for keyring_key access
iommu/io-pgtable-arm: Ensure we free the final level on teardown
tty: Fix unsafe ldisc reference via ioctl(TIOCGETD)
tty: Retry failed reopen if tty teardown in-progress
tty: Wait interruptibly for tty lock on reopen
n_tty: Fix unsafe reference to "other" ldisc
usb: xhci: apply XHCI_PME_STUCK_QUIRK to Intel Broxton-M platforms
usb: xhci: handle both SSIC ports in PME stuck quirk
usb: phy: msm: fix error handling in probe.
usb: cdc-acm: send zero packet for intel 7260 modem
usb: cdc-acm: handle unlinked urb in acm read callback
USB: option: fix Cinterion AHxx enumeration
USB: serial: option: Adding support for Telit LE922
USB: cp210x: add ID for IAI USB to RS485 adaptor
USB: serial: ftdi_sio: add support for Yaesu SCU-18 cable
usb: hub: do not clear BOS field during reset device
USB: visor: fix null-deref at probe
USB: serial: visor: fix crash on detecting device without write_urbs
ASoC: rt5645: fix the shift bit of IN1 boost
saa7134-alsa: Only frees registered sound cards
ALSA: dummy: Implement timer backend switching more safely
ALSA: hda - Fix bad dereference of jack object
ALSA: hda - Fix speaker output from VAIO AiO machines
Revert "ALSA: hda - Fix noise on Gigabyte Z170X mobo"
ALSA: hda - Fix static checker warning in patch_hdmi.c
ALSA: hda - Add fixup for Mac Mini 7,1 model
ALSA: timer: Fix race between stop and interrupt
ALSA: timer: Fix wrong instance passed to slave callbacks
ALSA: timer: Fix race at concurrent reads
ALSA: timer: Fix link corruption due to double start or stop
ALSA: timer: Fix leftover link at closing
ALSA: timer: Code cleanup
ALSA: seq: Fix lockdep warnings due to double mutex locks
ALSA: seq: Fix race at closing in virmidi driver
ALSA: seq: Fix yet another races among ALSA timer accesses
ASoC: dpcm: fix the BE state on hw_free
ALSA: pcm: Fix potential deadlock in OSS emulation
ALSA: hda/realtek - Support Dell headset mode for ALC225
ALSA: hda/realtek - Support headset mode for ALC225
ALSA: hda/realtek - New codec support of ALC225
ALSA: rawmidi: Fix race at copying & updating the position
ALSA: rawmidi: Remove kernel WARNING for NULL user-space buffer check
ALSA: rawmidi: Make snd_rawmidi_transmit() race-free
ALSA: seq: Degrade the error message for too many opens
ALSA: seq: Fix incorrect sanity check at snd_seq_oss_synth_cleanup()
ALSA: dummy: Disable switching timer backend via sysfs
ALSA: compress: Disable GET_CODEC_CAPS ioctl for some architectures
ALSA: hda - disable dynamic clock gating on Broxton before reset
ALSA: Add missing dependency on CONFIG_SND_TIMER
ALSA: bebob: Use a signed return type for get_formation_index
ALSA: usb-audio: avoid freeing umidi object twice
ALSA: usb-audio: Add native DSD support for PS Audio NuWave DAC
ALSA: usb-audio: Fix OPPO HA-1 vendor ID
ALSA: usb-audio: Add quirk for Microsoft LifeCam HD-6000
ALSA: usb-audio: Fix TEAC UD-501/UD-503/NT-503 usb delay
hrtimer: Handle remaining time proper for TIME_LOW_RES
md/raid: only permit hot-add of compatible integrity profiles
media: i2c: Don't export ir-kbd-i2c module alias
parisc: Fix __ARCH_SI_PREAMBLE_SIZE
parisc: Protect huge page pte changes with spinlocks
printk: do cond_resched() between lines while outputting to consoles
tracing/stacktrace: Show entire trace if passed in function not found
tracing: Fix stacktrace skip depth in trace_buffer_unlock_commit_regs()
PCI: Fix minimum allocation address overwrite
PCI: host: Mark PCIe/PCI (MSI) IRQ cascade handlers as IRQF_NO_THREAD
mtd: nand: assign reasonable default name for NAND drivers
wlcore/wl12xx: spi: fix NULL pointer dereference (Oops)
wlcore/wl12xx: spi: fix oops on firmware load
ocfs2/dlm: clear refmap bit of recovery lock while doing local recovery cleanup
ocfs2/dlm: ignore cleaning the migration mle that is inuse
ALSA: hda - Implement loopback control switch for Realtek and other codecs
block: fix bio splitting on max sectors
base/platform: Fix platform drivers with no probe callback
HID: usbhid: fix recursive deadlock
ocfs2: NFS hangs in __ocfs2_cluster_lock due to race with ocfs2_unblock_lock
block: split bios to max possible length
NFSv4.1/pnfs: Fixup an lo->plh_block_lgets imbalance in layoutreturn
crypto: sun4i-ss - add missing statesize
Linux 4.4.1
arm64: kernel: fix architected PMU registers unconditional access
arm64: kernel: enforce pmuserenr_el0 initialization and restore
arm64: mm: ensure that the zero page is visible to the page table walker
arm64: Clear out any singlestep state on a ptrace detach operation
powerpc/module: Handle R_PPC64_ENTRY relocations
scripts/recordmcount.pl: support data in text section on powerpc
powerpc: Make {cmp}xchg* and their atomic_ versions fully ordered
powerpc: Make value-returning atomics fully ordered
powerpc/tm: Check for already reclaimed tasks
batman-adv: Drop immediate orig_node free function
batman-adv: Drop immediate batadv_hard_iface free function
batman-adv: Drop immediate neigh_ifinfo free function
batman-adv: Drop immediate batadv_neigh_node free function
batman-adv: Drop immediate batadv_orig_ifinfo free function
batman-adv: Avoid recursive call_rcu for batadv_nc_node
batman-adv: Avoid recursive call_rcu for batadv_bla_claim
team: Replace rcu_read_lock with a mutex in team_vlan_rx_kill_vid
net/mlx5_core: Fix trimming down IRQ number
bridge: fix lockdep addr_list_lock false positive splat
ipv6: update skb->csum when CE mark is propagated
net: bpf: reject invalid shifts
phonet: properly unshare skbs in phonet_rcv()
dwc_eth_qos: Fix dma address for multi-fragment skbs
bonding: Prevent IPv6 link local address on enslaved devices
net: preserve IP control block during GSO segmentation
udp: disallow UFO for sockets with SO_NO_CHECK option
net: pktgen: fix null ptr deref in skb allocation
sched,cls_flower: set key address type when present
tcp_yeah: don't set ssthresh below 2
ipv6: tcp: add rcu locking in tcp_v6_send_synack()
net: sctp: prevent writes to cookie_hmac_alg from accessing invalid memory
vxlan: fix test which detect duplicate vxlan iface
unix: properly account for FDs passed over unix sockets
xhci: refuse loading if nousb is used
usb: core: lpm: fix usb3_hardware_lpm sysfs node
USB: cp210x: add ID for ELV Marble Sound Board 1
rtlwifi: fix memory leak for USB device
ASoC: compress: Fix compress device direction check
ASoC: wm5110: Fix PGA clear when disabling DRE
ALSA: timer: Handle disconnection more safely
ALSA: hda - Flush the pending probe work at remove
ALSA: hda - Fix missing module loading with model=generic option
ALSA: hda - Fix bass pin fixup for ASUS N550JX
ALSA: control: Avoid kernel warnings from tlv ioctl with numid 0
ALSA: hrtimer: Fix stall by hrtimer_cancel()
ALSA: pcm: Fix snd_pcm_hw_params struct copy in compat mode
ALSA: seq: Fix snd_seq_call_port_info_ioctl in compat mode
ALSA: hda - Add fixup for Dell Latitidue E6540
ALSA: timer: Fix double unlink of active_list
ALSA: timer: Fix race among timer ioctls
ALSA: hda - fix the headset mic detection problem for a Dell laptop
ALSA: timer: Harden slave timer list handling
ALSA: usb-audio: Fix mixer ctl regression of Native Instrument devices
ALSA: hda - Fix white noise on Dell Latitude E5550
ALSA: seq: Fix race at timer setup and close
ALSA: usb-audio: Avoid calling usb_autopm_put_interface() at disconnect
ALSA: seq: Fix missing NULL check at remove_events ioctl
ALSA: hda - Fixup inverted internal mic for Lenovo E50-80
ALSA: usb: Add native DSD support for Oppo HA-1
x86/mm: Improve switch_mm() barrier comments
x86/mm: Add barriers and document switch_mm()-vs-flush synchronization
x86/boot: Double BOOT_HEAP_SIZE to 64KB
x86/reboot/quirks: Add iMac10,1 to pci_reboot_dmi_table[]
kvm: x86: Fix vmwrite to SECONDARY_VM_EXEC_CONTROL
KVM: x86: correctly print #AC in traces
KVM: x86: expose MSR_TSC_AUX to userspace
x86/xen: don't reset vcpu_info on a cancelled suspend
KEYS: Fix keyring ref leak in join_session_keyring()
Conflicts:
arch/arm64/kernel/perf_event.c
drivers/scsi/sd.c
sound/core/compress_offload.c
Change-Id: I9f77fe42aaae249c24cd6e170202110ab1426878
Signed-off-by: Trilok Soni <tsoni@codeaurora.org>
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commit 732042821cfa106b3c20b9780e4c60fee9d68900 upstream.
Helper radix_tree_iter_retry() resets next_index to the current index.
In following radix_tree_next_slot current chunk size becomes zero. This
isn't checked and it tries to dereference null pointer in slot.
Tagged iterator is fine because retry happens only at slot 0 where tag
bitmask in iter->tags is filled with single bit.
Fixes: 46437f9a554f ("radix-tree: fix race in gang lookup")
Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Matthew Wilcox <willy@linux.intel.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Ohad Ben-Cohen <ohad@wizery.com>
Cc: Jeremiah Mahler <jmmahler@gmail.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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commit 46437f9a554fbe3e110580ca08ab703b59f2f95a upstream.
If the indirect_ptr bit is set on a slot, that indicates we need to redo
the lookup. Introduce a new function radix_tree_iter_retry() which
forces the loop to retry the lookup by setting 'slot' to NULL and
turning the iterator back to point at the problematic entry.
This is a pretty rare problem to hit at the moment; the lookup has to
race with a grow of the radix tree from a height of 0. The consequences
of hitting this race are that gang lookup could return a pointer to a
radix_tree_node instead of a pointer to whatever the user had inserted
in the tree.
Fixes: cebbd29e1c2f ("radix-tree: rewrite gang lookup using iterator")
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Ohad Ben-Cohen <ohad@wizery.com>
Cc: Konstantin Khlebnikov <khlebnikov@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 46924008273ed03bd11dbb32136e3da4cfe056e1 upstream.
According to the VT-d specification we need to clear the PPR bit in
the Page Request Status register when handling page requests, or the
hardware won't generate any more interrupts.
This wasn't actually necessary on SKL/KBL (which may well be the
subject of a hardware erratum, although it's harmless enough). But
other implementations do appear to get it right, and we only ever get
one interrupt unless we clear the PPR bit.
Reported-by: CQ Tang <cq.tang@intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 12352d3cae2cebe18805a91fab34b534d7444231 upstream.
Sequence vma_lock_anon_vma() - vma_unlock_anon_vma() isn't safe if
anon_vma appeared between lock and unlock. We have to check anon_vma
first or call anon_vma_prepare() to be sure that it's here. There are
only few users of these legacy helpers. Let's get rid of them.
This patch fixes anon_vma lock imbalance in validate_mm(). Write lock
isn't required here, read lock is enough.
And reorders expand_downwards/expand_upwards: security_mmap_addr() and
wrapping-around check don't have to be under anon vma lock.
Link: https://lkml.kernel.org/r/CACT4Y+Y908EjM2z=706dv4rV6dWtxTLK9nFg9_7DhRMLppBo2g@mail.gmail.com
Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.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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commit f37755490fe9bf76f6ba1d8c6591745d3574a6a6 upstream.
The tracepoint infrastructure uses RCU sched protection to enable and
disable tracepoints safely. There are some instances where tracepoints are
used in infrastructure code (like kfree()) that get called after a CPU is
going offline, and perhaps when it is coming back online but hasn't been
registered yet.
This can probuce the following warning:
[ INFO: suspicious RCU usage. ]
4.4.0-00006-g0fe53e8-dirty #34 Tainted: G S
-------------------------------
include/trace/events/kmem.h:141 suspicious rcu_dereference_check() usage!
other info that might help us debug this:
RCU used illegally from offline CPU! rcu_scheduler_active = 1, debug_locks = 1
no locks held by swapper/8/0.
stack backtrace:
CPU: 8 PID: 0 Comm: swapper/8 Tainted: G S 4.4.0-00006-g0fe53e8-dirty #34
Call Trace:
[c0000005b76c78d0] [c0000000008b9540] .dump_stack+0x98/0xd4 (unreliable)
[c0000005b76c7950] [c00000000010c898] .lockdep_rcu_suspicious+0x108/0x170
[c0000005b76c79e0] [c00000000029adc0] .kfree+0x390/0x440
[c0000005b76c7a80] [c000000000055f74] .destroy_context+0x44/0x100
[c0000005b76c7b00] [c0000000000934a0] .__mmdrop+0x60/0x150
[c0000005b76c7b90] [c0000000000e3ff0] .idle_task_exit+0x130/0x140
[c0000005b76c7c20] [c000000000075804] .pseries_mach_cpu_die+0x64/0x310
[c0000005b76c7cd0] [c000000000043e7c] .cpu_die+0x3c/0x60
[c0000005b76c7d40] [c0000000000188d8] .arch_cpu_idle_dead+0x28/0x40
[c0000005b76c7db0] [c000000000101e6c] .cpu_startup_entry+0x50c/0x560
[c0000005b76c7ed0] [c000000000043bd8] .start_secondary+0x328/0x360
[c0000005b76c7f90] [c000000000008a6c] start_secondary_prolog+0x10/0x14
This warning is not a false positive either. RCU is not protecting code that
is being executed while the CPU is offline.
Instead of playing "whack-a-mole(TM)" and adding conditional statements to
the tracepoints we find that are used in this instance, simply add a
cpu_online() test to the tracepoint code where the tracepoint will be
ignored if the CPU is offline.
Use of raw_smp_processor_id() is fine, as there should never be a case where
the tracepoint code goes from running on a CPU that is online and suddenly
gets migrated to a CPU that is offline.
Link: http://lkml.kernel.org/r/1455387773-4245-1-git-send-email-kda@linux-powerpc.org
Reported-by: Denis Kirjanov <kda@linux-powerpc.org>
Fixes: 97e1c18e8d17b ("tracing: Kernel Tracepoints")
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit b33c8ff4431a343561e2319f17c14286f2aa52e2 upstream.
In my randconfig tests, I came across a bug that involves several
components:
* gcc-4.9 through at least 5.3
* CONFIG_GCOV_PROFILE_ALL enabling -fprofile-arcs for all files
* CONFIG_PROFILE_ALL_BRANCHES overriding every if()
* The optimized implementation of do_div() that tries to
replace a library call with an division by multiplication
* code in drivers/media/dvb-frontends/zl10353.c doing
u32 adc_clock = 450560; /* 45.056 MHz */
if (state->config.adc_clock)
adc_clock = state->config.adc_clock;
do_div(value, adc_clock);
In this case, gcc fails to determine whether the divisor
in do_div() is __builtin_constant_p(). In particular, it
concludes that __builtin_constant_p(adc_clock) is false, while
__builtin_constant_p(!!adc_clock) is true.
That in turn throws off the logic in do_div() that also uses
__builtin_constant_p(), and instead of picking either the
constant- optimized division, and the code in ilog2() that uses
__builtin_constant_p() to figure out whether it knows the answer at
compile time. The result is a link error from failing to find
multiple symbols that should never have been called based on
the __builtin_constant_p():
dvb-frontends/zl10353.c:138: undefined reference to `____ilog2_NaN'
dvb-frontends/zl10353.c:138: undefined reference to `__aeabi_uldivmod'
ERROR: "____ilog2_NaN" [drivers/media/dvb-frontends/zl10353.ko] undefined!
ERROR: "__aeabi_uldivmod" [drivers/media/dvb-frontends/zl10353.ko] undefined!
This patch avoids the problem by changing __trace_if() to check
whether the condition is known at compile-time to be nonzero, rather
than checking whether it is actually a constant.
I see this one link error in roughly one out of 1600 randconfig builds
on ARM, and the patch fixes all known instances.
Link: http://lkml.kernel.org/r/1455312410-1058841-1-git-send-email-arnd@arndb.de
Acked-by: Nicolas Pitre <nico@linaro.org>
Fixes: ab3c9c686e22 ("branch tracer, intel-iommu: fix build with CONFIG_BRANCH_TRACER=y")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit caaee6234d05a58c5b4d05e7bf766131b810a657 upstream.
By checking the effective credentials instead of the real UID / permitted
capabilities, ensure that the calling process actually intended to use its
credentials.
To ensure that all ptrace checks use the correct caller credentials (e.g.
in case out-of-tree code or newly added code omits the PTRACE_MODE_*CREDS
flag), use two new flags and require one of them to be set.
The problem was that when a privileged task had temporarily dropped its
privileges, e.g. by calling setreuid(0, user_uid), with the intent to
perform following syscalls with the credentials of a user, it still passed
ptrace access checks that the user would not be able to pass.
While an attacker should not be able to convince the privileged task to
perform a ptrace() syscall, this is a problem because the ptrace access
check is reused for things in procfs.
In particular, the following somewhat interesting procfs entries only rely
on ptrace access checks:
/proc/$pid/stat - uses the check for determining whether pointers
should be visible, useful for bypassing ASLR
/proc/$pid/maps - also useful for bypassing ASLR
/proc/$pid/cwd - useful for gaining access to restricted
directories that contain files with lax permissions, e.g. in
this scenario:
lrwxrwxrwx root root /proc/13020/cwd -> /root/foobar
drwx------ root root /root
drwxr-xr-x root root /root/foobar
-rw-r--r-- root root /root/foobar/secret
Therefore, on a system where a root-owned mode 6755 binary changes its
effective credentials as described and then dumps a user-specified file,
this could be used by an attacker to reveal the memory layout of root's
processes or reveal the contents of files he is not allowed to access
(through /proc/$pid/cwd).
[akpm@linux-foundation.org: fix warning]
Signed-off-by: Jann Horn <jann@thejh.net>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Casey Schaufler <casey@schaufler-ca.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Morris <james.l.morris@oracle.com>
Cc: "Serge E. Hallyn" <serge.hallyn@ubuntu.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Willy Tarreau <w@1wt.eu>
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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commit 1f55c718c290616889c04946864a13ef30f64929 upstream.
Considering current pty code and multiple devpts instances, it's possible
to umount a devpts file system while a program still has /dev/tty opened
pointing to a previosuly closed pty pair in that instance. In the case all
ptmx and pts/N files are closed, umount can be done. If the program closes
/dev/tty after umount is done, devpts_kill_index will use now an invalid
super_block, which was already destroyed in the umount operation after
running ->kill_sb. This is another "use after free" type of issue, but now
related to the allocated super_block instance.
To avoid the problem (warning at ida_remove and potential crashes) for
this specific case, I added two functions in devpts which grabs additional
references to the super_block, which pty code now uses so it makes sure
the super block structure is still valid until pty shutdown is done.
I also moved the additional inode references to the same functions, which
also covered similar case with inode being freed before /dev/tty final
close/shutdown.
Signed-off-by: Herton R. Krzesinski <herton@redhat.com>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 0bfd464d3fdd5bb322f9cace4cc47f1796545cf7 upstream.
Allow a signal to interrupt the wait for a tty reopen; eg., if
the tty has starting final close and is waiting for the device to
drain.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 203cbf77de59fc8f13502dcfd11350c6d4a5c95f upstream.
If CONFIG_TIME_LOW_RES is enabled we add a jiffie to the relative timeout to
prevent short sleeps, but we do not account for that in interfaces which
retrieve the remaining time.
Helge observed that timerfd can return a remaining time larger than the
relative timeout. That's not expected and breaks userland test programs.
Store the information that the timer was armed relative and provide functions
to adjust the remaining time. To avoid bloating the hrtimer struct make state
a u8, which as a bonus results in better code on x86 at least.
Reported-and-tested-by: Helge Deller <deller@gmx.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: John Stultz <john.stultz@linaro.org>
Cc: linux-m68k@lists.linux-m68k.org
Cc: dhowells@redhat.com
Link: http://lkml.kernel.org/r/20160114164159.273328486@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 8d91f8b15361dfb438ab6eb3b319e2ded43458ff upstream.
@console_may_schedule tracks whether console_sem was acquired through
lock or trylock. If the former, we're inside a sleepable context and
console_conditional_schedule() performs cond_resched(). This allows
console drivers which use console_lock for synchronization to yield
while performing time-consuming operations such as scrolling.
However, the actual console outputting is performed while holding
irq-safe logbuf_lock, so console_unlock() clears @console_may_schedule
before starting outputting lines. Also, only a few drivers call
console_conditional_schedule() to begin with. This means that when a
lot of lines need to be output by console_unlock(), for example on a
console registration, the task doing console_unlock() may not yield for
a long time on a non-preemptible kernel.
If this happens with a slow console devices, for example a serial
console, the outputting task may occupy the cpu for a very long time.
Long enough to trigger softlockup and/or RCU stall warnings, which in
turn pile more messages, sometimes enough to trigger the next cycle of
warnings incapacitating the system.
Fix it by making console_unlock() insert cond_resched() between lines if
@console_may_schedule.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Calvin Owens <calvinowens@fb.com>
Acked-by: Jan Kara <jack@suse.com>
Cc: Dave Jones <davej@codemonkey.org.uk>
Cc: Kyle McMartin <kyle@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 0b6e26ce89391327d955a756a7823272238eb867 ]
With several ConnectX-4 cards installed on a server, one may receive
irqn > 255 from the kernel API, which we mistakenly trim to 8bit.
This causes EQ creation failure with the following stack trace:
[<ffffffff812a11f4>] dump_stack+0x48/0x64
[<ffffffff810ace21>] __setup_irq+0x3a1/0x4f0
[<ffffffff810ad7e0>] request_threaded_irq+0x120/0x180
[<ffffffffa0923660>] ? mlx5_eq_int+0x450/0x450 [mlx5_core]
[<ffffffffa0922f64>] mlx5_create_map_eq+0x1e4/0x2b0 [mlx5_core]
[<ffffffffa091de01>] alloc_comp_eqs+0xb1/0x180 [mlx5_core]
[<ffffffffa091ea99>] mlx5_dev_init+0x5e9/0x6e0 [mlx5_core]
[<ffffffffa091ec29>] init_one+0x99/0x1c0 [mlx5_core]
[<ffffffff812e2afc>] local_pci_probe+0x4c/0xa0
Fixing it by changing of the irqn type from u8 to unsigned int to
support values > 255
Fixes: 61d0e73e0a5a ('net/mlx5_core: Use the the real irqn in eq->irqn')
Reported-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Doron Tsur <doront@mellanox.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 9207f9d45b0ad071baa128e846d7e7ed85016df3 ]
Skb_gso_segment() uses skb control block during segmentation.
This patch adds 32-bytes room for previous control block which
will be copied into all resulting segments.
This patch fixes kernel crash during fragmenting forwarded packets.
Fragmentation requires valid IP CB in skb for clearing ip options.
Also patch removes custom save/restore in ovs code, now it's redundant.
Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>
Link: http://lkml.kernel.org/r/CALYGNiP-0MZ-FExV2HutTvE9U-QQtkKSoE--KN=JQE5STYsjAA@mail.gmail.com
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 712f4aad406bb1ed67f3f98d04c044191f0ff593 ]
It is possible for a process to allocate and accumulate far more FDs than
the process' limit by sending them over a unix socket then closing them
to keep the process' fd count low.
This change addresses this problem by keeping track of the number of FDs
in flight per user and preventing non-privileged processes from having
more FDs in flight than their configured FD limit.
Reported-by: socketpair@gmail.com
Reported-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Mitigates: CVE-2013-4312 (Linux 2.0+)
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit bf5ce5bf3cc7136fd7fe5e8999a580bc93a9c8f6 upstream.
Commit 655fe4effe0f ("usbcore: add sysfs support to xHCI usb3
hardware LPM") introduced usb3_hardware_lpm sysfs node. This
doesn't show the correct status of USB3 U1 and U2 LPM status.
This patch fixes this by replacing usb3_hardware_lpm with two
nodes, usb3_hardware_lpm_u1 (for U1) and usb3_hardware_lpm_u2
(for U2), and recording the U1/U2 LPM status in right places.
This patch should be back-ported to kernels as old as 4.3,
that contains Commit 655fe4effe0f ("usbcore: add sysfs support
to xHCI usb3 hardware LPM").
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Make some functions global so they can be referenced
by chip-specific drivers.
Change-Id: If20de0b9191c2cd32c48da5c0b8b5bc60ac4a97b
Signed-off-by: Neil Leeder <nleeder@codeaurora.org>
[satyap: trivial merge conflict resolution and move changes
in arch/arm64/include/asm/pmu.h to include/linux/perf/arm_pmu.h
to align with kernel 4.4]
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>
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Add the exported function into the header so it can
be used by other drivers.
Change-Id: Ic1c2fba3efa1d091033d66e25ec59627134b065f
Signed-off-by: Neil Leeder <nleeder@codeaurora.org>
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The HDMI transmitter core can be used to program the sample
present value of the audio sample packet. The sample present
value is determined in the audio driver and sent as part of
the parameters to the audio setup interface.
Change-Id: I8d580f95467343328ec0d24efc48dabf8a41ad49
Signed-off-by: Tatenda Chipeperekwa <tatendac@codeaurora.org>
[cip@codeaurora.org: Removed sound/soc/codecs/msm_hdmi_codec_rx.c changes]
Signed-off-by: Clarence Ip <cip@codeaurora.org>
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MDSS driver uses file pointer to track the client
and associates the resources based on it. There can
be a race condition between to clients ioctl call
and it can lead to track resources with wrong
caller. This can leads to release/reallocate
resources prematurely to other client which may
show blank screen on display.
One good example client call flow is:
<-step:1-> fb_open by client-X
<-step:2-> fb_open by client-Y
<-step:3-> fb_ioctl by client-X
<-step:4-> fb_ioctl by client-Y
<-step:5-> fb_ioctl by client-X
<-step:6-> fb_close by client-Y
If step-5 and step-6 both are running on two different
CPUs at same time then it may overwrite the file node
unintentionally.
This change tries to pass the file pointer as one of
the argument to IOCTL call. It avoids usage of mutex
lock to support the concurrent calls.
Change-Id: I0bfd76358c80892c8e4f56298bce6c33b4132550
Signed-off-by: Dhaval Patel <pdhaval@codeaurora.org>
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Do not load hdcp1.x app at runtime and keep the app status for
future use. Whenever cable is connected and hdcp 1.x needs to
be started, just set keys using app. This avoids any possible
app load - unload issues in some corner cases.
Change-Id: Ic7f55ab74d6cb6b9ff654eb32c0bed8a44f70007
Signed-off-by: Ajay Singh Parmar <aparmar@codeaurora.org>
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Add support for propagating content stream related information downstream.
Send/receive repeater authentication stream manage/ready messages as per
hdcp2.2 standard.
Change-Id: I8d37f9f6d4cb131b29128222bb43c9c290c78437
Signed-off-by: Ajay Singh Parmar <aparmar@codeaurora.org>
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