commit 0c461cb727d146c9ef2d3e86214f498b78b7d125 upstream.
SELinux tries to support setting/clearing of /proc/pid/attr attributes
from the shell by ignoring terminating newlines and treating an
attribute value that begins with a NUL or newline as an attempt to
clear the attribute. However, the test for clearing attributes has
always been wrong; it has an off-by-one error, and this could further
lead to reading past the end of the allocated buffer since commit
bb646cdb12e75d82258c2f2e7746d5952d3e321a ("proc_pid_attr_write():
switch to memdup_user()"). Fix the off-by-one error.
Even with this fix, setting and clearing /proc/pid/attr attributes
from the shell is not straightforward since the interface does not
support multiple write() calls (so shells that write the value and
newline separately will set and then immediately clear the attribute,
requiring use of echo -n to set the attribute), whereas trying to use
echo -n "" to clear the attribute causes the shell to skip the
write() call altogether since POSIX says that a zero-length write
causes no side effects. Thus, one must use echo -n to set and echo
without -n to clear, as in the following example:
$ echo -n unconfined_u:object_r:user_home_t:s0 > /proc/$$/attr/fscreate
$ cat /proc/$$/attr/fscreate
unconfined_u:object_r:user_home_t:s0
$ echo "" > /proc/$$/attr/fscreate
$ cat /proc/$$/attr/fscreate
Note the use of /proc/$$ rather than /proc/self, as otherwise
the cat command will read its own attribute value, not that of the shell.
There are no users of this facility to my knowledge; possibly we
should just get rid of it.
UPDATE: Upon further investigation it appears that a local process
with the process:setfscreate permission can cause a kernel panic as a
result of this bug. This patch fixes CVE-2017-2618.
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
[PM: added the update about CVE-2017-2618 to the commit description]
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: James Morris <james.l.morris@oracle.com>
TZ is called to restore key configuration in case of UFS reset
Change-Id: Id434e7f9ec6befdce97f52fd350957b66adcb15f
Signed-off-by: Andrey Markovytch <andreym@codeaurora.org>
This allows filesystems to use their mount private data to
influence the permssions they return in permission2. It has
been separated into a new call to avoid disrupting current
permission users.
Change-Id: I9d416e3b8b6eca84ef3e336bd2af89ddd51df6ca
Signed-off-by: Daniel Rosenberg <drosen@google.com>
This allows filesystems to use their mount private data to
influence the permssions they return in permission2. It has
been separated into a new call to avoid disrupting current
permission users.
Change-Id: I9d416e3b8b6eca84ef3e336bd2af89ddd51df6ca
Signed-off-by: Daniel Rosenberg <drosen@google.com>
1. Added reference count for requests in HW queue for particular key
2. Fixed race between block/unblock requests with asynchronous job
for key configuration in ice
Change-Id: Iaefc25739b420b2e5feae1895c7c2495b4850539
Signed-off-by: Andrey Markovytch <andreym@codeaurora.org>
This fixes CVE-2016-7042.
Fix a short sprintf buffer in proc_keys_show(). If the gcc stack protector
is turned on, this can cause a panic due to stack corruption.
The problem is that xbuf[] is not big enough to hold a 64-bit timeout
rendered as weeks:
(gdb) p 0xffffffffffffffffULL/(60*60*24*7)
$2 = 30500568904943
That's 14 chars plus NUL, not 11 chars plus NUL.
Expand the buffer to 16 chars.
I think the unpatched code apparently works if the stack-protector is not
enabled because on a 32-bit machine the buffer won't be overflowed and on a
64-bit machine there's a 64-bit aligned pointer at one side and an int that
isn't checked again on the other side.
The panic incurred looks something like:
Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: ffffffff81352ebe
CPU: 0 PID: 1692 Comm: reproducer Not tainted 4.7.2-201.fc24.x86_64 #1
Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011
0000000000000086 00000000fbbd2679 ffff8800a044bc00 ffffffff813d941f
ffffffff81a28d58 ffff8800a044bc98 ffff8800a044bc88 ffffffff811b2cb6
ffff880000000010 ffff8800a044bc98 ffff8800a044bc30 00000000fbbd2679
Call Trace:
[<ffffffff813d941f>] dump_stack+0x63/0x84
[<ffffffff811b2cb6>] panic+0xde/0x22a
[<ffffffff81352ebe>] ? proc_keys_show+0x3ce/0x3d0
[<ffffffff8109f7f9>] __stack_chk_fail+0x19/0x30
[<ffffffff81352ebe>] proc_keys_show+0x3ce/0x3d0
[<ffffffff81350410>] ? key_validate+0x50/0x50
[<ffffffff8134db30>] ? key_default_cmp+0x20/0x20
[<ffffffff8126b31c>] seq_read+0x2cc/0x390
[<ffffffff812b6b12>] proc_reg_read+0x42/0x70
[<ffffffff81244fc7>] __vfs_read+0x37/0x150
[<ffffffff81357020>] ? security_file_permission+0xa0/0xc0
[<ffffffff81246156>] vfs_read+0x96/0x130
[<ffffffff81247635>] SyS_read+0x55/0xc0
[<ffffffff817eb872>] entry_SYSCALL_64_fastpath+0x1a/0xa4
Change-Id: I23554b54eb9b82f44554a3ef620200de9f6ea55a
Reported-by: Ondrej Kozina <okozina@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Ondrej Kozina <okozina@redhat.com>
cc: stable@vger.kernel.org
Signed-off-by: James Morris <james.l.morris@oracle.com>
Git-repo: http://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git
Git-commit: 03dab869b7b239c4e013ec82aea22e181e441cfc
Signed-off-by: Dennis Cagle <d-cagle@codeaurora.org>
Moved hooks from SELINUX framework to general SECURITY framework.
Change-Id: I37e701b4925c4993f724c32b258c5088f4dcbe4d
Signed-off-by: Andrey Markovytch <andreym@codeaurora.org>
* v4.4-16.09-android-tmp:
unsafe_[get|put]_user: change interface to use a error target label
usercopy: remove page-spanning test for now
usercopy: fix overlap check for kernel text
mm/slub: support left redzone
Linux 4.4.21
lib/mpi: mpi_write_sgl(): fix skipping of leading zero limbs
regulator: anatop: allow regulator to be in bypass mode
hwrng: exynos - Disable runtime PM on probe failure
cpufreq: Fix GOV_LIMITS handling for the userspace governor
metag: Fix atomic_*_return inline asm constraints
scsi: fix upper bounds check of sense key in scsi_sense_key_string()
ALSA: timer: fix NULL pointer dereference on memory allocation failure
ALSA: timer: fix division by zero after SNDRV_TIMER_IOCTL_CONTINUE
ALSA: timer: fix NULL pointer dereference in read()/ioctl() race
ALSA: hda - Enable subwoofer on Dell Inspiron 7559
ALSA: hda - Add headset mic quirk for Dell Inspiron 5468
ALSA: rawmidi: Fix possible deadlock with virmidi registration
ALSA: fireworks: accessing to user space outside spinlock
ALSA: firewire-tascam: accessing to user space outside spinlock
ALSA: usb-audio: Add sample rate inquiry quirk for B850V3 CP2114
crypto: caam - fix IV loading for authenc (giv)decryption
uprobes: Fix the memcg accounting
x86/apic: Do not init irq remapping if ioapic is disabled
vhost/scsi: fix reuse of &vq->iov[out] in response
bcache: RESERVE_PRIO is too small by one when prio_buckets() is a power of two.
ubifs: Fix assertion in layout_in_gaps()
ovl: fix workdir creation
ovl: listxattr: use strnlen()
ovl: remove posix_acl_default from workdir
ovl: don't copy up opaqueness
wrappers for ->i_mutex access
lustre: remove unused declaration
timekeeping: Avoid taking lock in NMI path with CONFIG_DEBUG_TIMEKEEPING
timekeeping: Cap array access in timekeeping_debug
xfs: fix superblock inprogress check
ASoC: atmel_ssc_dai: Don't unconditionally reset SSC on stream startup
drm/msm: fix use of copy_from_user() while holding spinlock
drm: Reject page_flip for !DRIVER_MODESET
drm/radeon: fix radeon_move_blit on 32bit systems
s390/sclp_ctl: fix potential information leak with /dev/sclp
rds: fix an infoleak in rds_inc_info_copy
powerpc/tm: Avoid SLB faults in treclaim/trecheckpoint when RI=0
nvme: Call pci_disable_device on the error path.
cgroup: reduce read locked section of cgroup_threadgroup_rwsem during fork
block: make sure a big bio is split into at most 256 bvecs
block: Fix race triggered by blk_set_queue_dying()
ext4: avoid modifying checksum fields directly during checksum verification
ext4: avoid deadlock when expanding inode size
ext4: properly align shifted xattrs when expanding inodes
ext4: fix xattr shifting when expanding inodes part 2
ext4: fix xattr shifting when expanding inodes
ext4: validate that metadata blocks do not overlap superblock
net: Use ns_capable_noaudit() when determining net sysctl permissions
kernel: Add noaudit variant of ns_capable()
KEYS: Fix ASN.1 indefinite length object parsing
drivers:hv: Lock access to hyperv_mmio resource tree
cxlflash: Move to exponential back-off when cmd_room is not available
netfilter: x_tables: check for size overflow
drm/amdgpu/cz: enable/disable vce dpm even if vce pg is disabled
cred: Reject inodes with invalid ids in set_create_file_as()
fs: Check for invalid i_uid in may_follow_link()
IB/IPoIB: Do not set skb truesize since using one linearskb
udp: properly support MSG_PEEK with truncated buffers
crypto: nx-842 - Mask XERS0 bit in return value
cxlflash: Fix to avoid virtual LUN failover failure
cxlflash: Fix to escalate LINK_RESET also on port 1
tipc: fix nl compat regression for link statistics
tipc: fix an infoleak in tipc_nl_compat_link_dump
netfilter: x_tables: check for size overflow
Bluetooth: Add support for Intel Bluetooth device 8265 [8087:0a2b]
drm/i915: Check VBT for port presence in addition to the strap on VLV/CHV
drm/i915: Only ignore eDP ports that are connected
Input: xpad - move pending clear to the correct location
net: thunderx: Fix link status reporting
x86/hyperv: Avoid reporting bogus NMI status for Gen2 instances
crypto: vmx - IV size failing on skcipher API
tda10071: Fix dependency to REGMAP_I2C
crypto: vmx - Fix ABI detection
crypto: vmx - comply with ABIs that specify vrsave as reserved.
HID: core: prevent out-of-bound readings
lpfc: Fix DMA faults observed upon plugging loopback connector
block: fix blk_rq_get_max_sectors for driver private requests
irqchip/gicv3-its: numa: Enable workaround for Cavium thunderx erratum 23144
clocksource: Allow unregistering the watchdog
btrfs: Continue write in case of can_not_nocow
blk-mq: End unstarted requests on dying queue
cxlflash: Fix to resolve dead-lock during EEH recovery
drm/radeon/mst: fix regression in lane/link handling.
ecryptfs: fix handling of directory opening
ALSA: hda: add AMD Polaris-10/11 AZ PCI IDs with proper driver caps
drm: Balance error path for GEM handle allocation
ntp: Fix ADJ_SETOFFSET being used w/ ADJ_NANO
time: Verify time values in adjtimex ADJ_SETOFFSET to avoid overflow
Input: xpad - correctly handle concurrent LED and FF requests
net: thunderx: Fix receive packet stats
net: thunderx: Fix for multiqset not configured upon interface toggle
perf/x86/cqm: Fix CQM memory leak and notifier leak
perf/x86/cqm: Fix CQM handling of grouping events into a cache_group
s390/crypto: provide correct file mode at device register.
proc: revert /proc/<pid>/maps [stack:TID] annotation
intel_idle: Support for Intel Xeon Phi Processor x200 Product Family
cxlflash: Fix to avoid unnecessary scan with internal LUNs
Drivers: hv: vmbus: don't manipulate with clocksources on crash
Drivers: hv: vmbus: avoid scheduling in interrupt context in vmbus_initiate_unload()
Drivers: hv: vmbus: avoid infinite loop in init_vp_index()
arcmsr: fixes not release allocated resource
arcmsr: fixed getting wrong configuration data
s390/pci_dma: fix DMA table corruption with > 4 TB main memory
net/mlx5e: Don't modify CQ before it was created
net/mlx5e: Don't try to modify CQ moderation if it is not supported
mmc: sdhci: Do not BUG on invalid vdd
UVC: Add support for R200 depth camera
sched/numa: Fix use-after-free bug in the task_numa_compare
ALSA: hda - add codec support for Kabylake display audio codec
drm/i915: Fix hpd live status bits for g4x
tipc: fix nullptr crash during subscription cancel
arm64: Add workaround for Cavium erratum 27456
net: thunderx: Fix for Qset error due to CQ full
drm/radeon: fix dp link rate selection (v2)
drm/amdgpu: fix dp link rate selection (v2)
qla2xxx: Use ATIO type to send correct tmr response
mmc: sdhci: 64-bit DMA actually has 4-byte alignment
drm/atomic: Do not unset crtc when an encoder is stolen
drm/i915/skl: Add missing SKL ids
drm/i915/bxt: update list of PCIIDs
hrtimer: Catch illegal clockids
i40e/i40evf: Fix RSS rx-flow-hash configuration through ethtool
mpt3sas: Fix for Asynchronous completion of timedout IO and task abort of timedout IO.
mpt3sas: A correction in unmap_resources
net: cavium: liquidio: fix check for in progress flag
arm64: KVM: Configure TCR_EL2.PS at runtime
irqchip/gic-v3: Make sure read from ICC_IAR1_EL1 is visible on redestributor
pwm: lpc32xx: fix and simplify duty cycle and period calculations
pwm: lpc32xx: correct number of PWM channels from 2 to 1
pwm: fsl-ftm: Fix clock enable/disable when using PM
megaraid_sas: Add an i/o barrier
megaraid_sas: Fix SMAP issue
megaraid_sas: Do not allow PCI access during OCR
s390/cio: update measurement characteristics
s390/cio: ensure consistent measurement state
s390/cio: fix measurement characteristics memleak
qeth: initialize net_device with carrier off
lpfc: Fix external loopback failure.
lpfc: Fix mbox reuse in PLOGI completion
lpfc: Fix RDP Speed reporting.
lpfc: Fix crash in fcp command completion path.
lpfc: Fix driver crash when module parameter lpfc_fcp_io_channel set to 16
lpfc: Fix RegLogin failed error seen on Lancer FC during port bounce
lpfc: Fix the FLOGI discovery logic to comply with T11 standards
lpfc: Fix FCF Infinite loop in lpfc_sli4_fcf_rr_next_index_get.
cxl: Enable PCI device ID for future IBM CXL adapter
cxl: fix build for GCC 4.6.x
cxlflash: Enable device id for future IBM CXL adapter
cxlflash: Resolve oops in wait_port_offline
cxlflash: Fix to resolve cmd leak after host reset
cxl: Fix DSI misses when the context owning task exits
cxl: Fix possible idr warning when contexts are released
Drivers: hv: vmbus: fix rescind-offer handling for device without a driver
Drivers: hv: vmbus: serialize process_chn_event() and vmbus_close_internal()
Drivers: hv: vss: run only on supported host versions
drivers/hv: cleanup synic msrs if vmbus connect failed
Drivers: hv: util: catch allocation errors
tools: hv: report ENOSPC errors in hv_fcopy_daemon
Drivers: hv: utils: run polling callback always in interrupt context
Drivers: hv: util: Increase the timeout for util services
lightnvm: fix missing grown bad block type
lightnvm: fix locking and mempool in rrpc_lun_gc
lightnvm: unlock rq and free ppa_list on submission fail
lightnvm: add check after mempool allocation
lightnvm: fix incorrect nr_free_blocks stat
lightnvm: fix bio submission issue
cxlflash: a couple off by one bugs
fm10k: Cleanup exception handling for mailbox interrupt
fm10k: Cleanup MSI-X interrupts in case of failure
fm10k: reinitialize queuing scheme after calling init_hw
fm10k: always check init_hw for errors
fm10k: reset max_queues on init_hw_vf failure
fm10k: Fix handling of NAPI budget when multiple queues are enabled per vector
fm10k: Correct MTU for jumbo frames
fm10k: do not assume VF always has 1 queue
clk: xgene: Fix divider with non-zero shift value
e1000e: fix division by zero on jumbo MTUs
e1000: fix data race between tx_ring->next_to_clean
ixgbe: Fix handling of NAPI budget when multiple queues are enabled per vector
igb: fix NULL derefs due to skipped SR-IOV enabling
igb: use the correct i210 register for EEMNGCTL
igb: don't unmap NULL hw_addr
i40e: Fix Rx hash reported to the stack by our driver
i40e: clean whole mac filter list
i40evf: check rings before freeing resources
i40e: don't add zero MAC filter
i40e: properly delete VF MAC filters
i40e: Fix memory leaks, sideband filter programming
i40e: fix: do not sleep in netdev_ops
i40e/i40evf: Fix RS bit update in Tx path and disable force WB workaround
i40evf: handle many MAC filters correctly
i40e: Workaround fix for mss < 256 issue
UPSTREAM: audit: fix a double fetch in audit_log_single_execve_arg()
UPSTREAM: ARM: 8494/1: mm: Enable PXN when running non-LPAE kernel on LPAE processor
FIXUP: sched/tune: update accouting before CPU capacity
FIXUP: sched/tune: add fixes missing from a previous patch
arm: Fix #if/#ifdef typo in topology.c
arm: Fix build error "conflicting types for 'scale_cpu_capacity'"
sched/walt: use do_div instead of division operator
DEBUG: cpufreq: fix cpu_capacity tracing build for non-smp systems
sched/walt: include missing header for arm_timer_read_counter()
cpufreq: Kconfig: Fixup incorrect selection by CPU_FREQ_DEFAULT_GOV_SCHED
sched/fair: Avoid redundant idle_cpu() call in update_sg_lb_stats()
FIXUP: sched: scheduler-driven cpu frequency selection
sched/rt: Add Kconfig option to enable panicking for RT throttling
sched/rt: print RT tasks when RT throttling is activated
UPSTREAM: sched: Fix a race between __kthread_bind() and sched_setaffinity()
sched/fair: Favor higher cpus only for boosted tasks
vmstat: make vmstat_updater deferrable again and shut down on idle
sched/fair: call OPP update when going idle after migration
sched/cpufreq_sched: fix thermal capping events
sched/fair: Picking cpus with low OPPs for tasks that prefer idle CPUs
FIXUP: sched/tune: do initialization as a postcore_initicall
DEBUG: sched: add tracepoint for RD overutilized
sched/tune: Introducing a new schedtune attribute prefer_idle
sched: use util instead of capacity to select busy cpu
arch_timer: add error handling when the MPM global timer is cleared
FIXUP: sched: Fix double-release of spinlock in move_queued_task
FIXUP: sched/fair: Fix hang during suspend in sched_group_energy
FIXUP: sched: fix SchedFreq integration for both PELT and WALT
sched: EAS: Avoid causing spikes to max-freq unnecessarily
FIXUP: sched: fix set_cfs_cpu_capacity when WALT is in use
sched/walt: Accounting for number of irqs pending on each core
sched: Introduce Window Assisted Load Tracking (WALT)
sched/tune: fix PB and PC cuts indexes definition
sched/fair: optimize idle cpu selection for boosted tasks
FIXUP: sched/tune: fix accounting for runnable tasks
sched/tune: use a single initialisation function
sched/{fair,tune}: simplify fair.c code
FIXUP: sched/tune: fix payoff calculation for boost region
sched/tune: Add support for negative boost values
FIX: sched/tune: move schedtune_nornalize_energy into fair.c
FIX: sched/tune: update usage of boosted task utilisation on CPU selection
sched/fair: add tunable to set initial task load
sched/fair: add tunable to force selection at cpu granularity
sched: EAS: take cstate into account when selecting idle core
sched/cpufreq_sched: Consolidated update
FIXUP: sched: fix build for non-SMP target
DEBUG: sched/tune: add tracepoint on P-E space filtering
DEBUG: sched/tune: add tracepoint for energy_diff() values
DEBUG: sched/tune: add tracepoint for task boost signal
arm: topology: Define TC2 energy and provide it to the scheduler
CHROMIUM: sched: update the average of nr_running
DEBUG: schedtune: add tracepoint for schedtune_tasks_update() values
DEBUG: schedtune: add tracepoint for CPU boost signal
DEBUG: schedtune: add tracepoint for SchedTune configuration update
DEBUG: sched: add energy procfs interface
DEBUG: sched,cpufreq: add cpu_capacity change tracepoint
DEBUG: sched: add tracepoint for CPU load/util signals
DEBUG: sched: add tracepoint for task load/util signals
DEBUG: sched: add tracepoint for cpu/freq scale invariance
sched/fair: filter energy_diff() based on energy_payoff value
sched/tune: add support to compute normalized energy
sched/fair: keep track of energy/capacity variations
sched/fair: add boosted task utilization
sched/{fair,tune}: track RUNNABLE tasks impact on per CPU boost value
sched/tune: compute and keep track of per CPU boost value
sched/tune: add initial support for CGroups based boosting
sched/fair: add boosted CPU usage
sched/fair: add function to convert boost value into "margin"
sched/tune: add sysctl interface to define a boost value
sched/tune: add detailed documentation
fixup! sched/fair: jump to max OPP when crossing UP threshold
fixup! sched: scheduler-driven cpu frequency selection
sched: rt scheduler sets capacity requirement
sched: deadline: use deadline bandwidth in scale_rt_capacity
sched: remove call of sched_avg_update from sched_rt_avg_update
sched/cpufreq_sched: add trace events
sched/fair: jump to max OPP when crossing UP threshold
sched/fair: cpufreq_sched triggers for load balancing
sched/{core,fair}: trigger OPP change request on fork()
sched/fair: add triggers for OPP change requests
sched: scheduler-driven cpu frequency selection
cpufreq: introduce cpufreq_driver_is_slow
sched: Consider misfit tasks when load-balancing
sched: Add group_misfit_task load-balance type
sched: Add per-cpu max capacity to sched_group_capacity
sched: Do eas idle balance regardless of the rq avg idle value
arm64: Enable max freq invariant scheduler load-tracking and capacity support
arm: Enable max freq invariant scheduler load-tracking and capacity support
sched: Update max cpu capacity in case of max frequency constraints
cpufreq: Max freq invariant scheduler load-tracking and cpu capacity support
arm64, topology: Updates to use DT bindings for EAS costing data
sched: Support for extracting EAS energy costs from DT
Documentation: DT bindings for energy model cost data required by EAS
sched: Disable energy-unfriendly nohz kicks
sched: Consider a not over-utilized energy-aware system as balanced
sched: Energy-aware wake-up task placement
sched: Determine the current sched_group idle-state
sched, cpuidle: Track cpuidle state index in the scheduler
sched: Add over-utilization/tipping point indicator
sched: Estimate energy impact of scheduling decisions
sched: Extend sched_group_energy to test load-balancing decisions
sched: Calculate energy consumption of sched_group
sched: Highest energy aware balancing sched_domain level pointer
sched: Relocated cpu_util() and change return type
sched: Compute cpu capacity available at current frequency
arm64: Cpu invariant scheduler load-tracking and capacity support
arm: Cpu invariant scheduler load-tracking and capacity support
sched: Introduce SD_SHARE_CAP_STATES sched_domain flag
sched: Initialize energy data structures
sched: Introduce energy data structures
sched: Make energy awareness a sched feature
sched: Documentation for scheduler energy cost model
sched: Prevent unnecessary active balance of single task in sched group
sched: Enable idle balance to pull single task towards cpu with higher capacity
sched: Consider spare cpu capacity at task wake-up
sched: Add cpu capacity awareness to wakeup balancing
sched: Store system-wide maximum cpu capacity in root domain
arm: Update arch_scale_cpu_capacity() to reflect change to define
arm64: Enable frequency invariant scheduler load-tracking support
arm: Enable frequency invariant scheduler load-tracking support
cpufreq: Frequency invariant scheduler load-tracking support
sched/fair: Fix new task's load avg removed from source CPU in wake_up_new_task()
FROMLIST: pstore: drop pmsg bounce buffer
UPSTREAM: usercopy: remove page-spanning test for now
UPSTREAM: usercopy: force check_object_size() inline
BACKPORT: usercopy: fold builtin_const check into inline function
UPSTREAM: x86/uaccess: force copy_*_user() to be inlined
UPSTREAM: HID: core: prevent out-of-bound readings
Android: Fix build breakages.
UPSTREAM: tty: Prevent ldisc drivers from re-using stale tty fields
UPSTREAM: netfilter: nfnetlink: correctly validate length of batch messages
cpuset: Make cpusets restore on hotplug
UPSTREAM: mm/slub: support left redzone
UPSTREAM: Make the hardened user-copy code depend on having a hardened allocator
Android: MMC/UFS IO Latency Histograms.
UPSTREAM: usercopy: fix overlap check for kernel text
UPSTREAM: usercopy: avoid potentially undefined behavior in pointer math
UPSTREAM: unsafe_[get|put]_user: change interface to use a error target label
BACKPORT: arm64: mm: fix location of _etext
BACKPORT: ARM: 8583/1: mm: fix location of _etext
BACKPORT: Don't show empty tag stats for unprivileged uids
UPSTREAM: tcp: fix use after free in tcp_xmit_retransmit_queue()
ANDROID: base-cfg: drop SECCOMP_FILTER config
UPSTREAM: [media] xc2028: unlock on error in xc2028_set_config()
UPSTREAM: [media] xc2028: avoid use after free
ANDROID: base-cfg: enable SECCOMP config
ANDROID: rcu_sync: Export rcu_sync_lockdep_assert
RFC: FROMLIST: cgroup: reduce read locked section of cgroup_threadgroup_rwsem during fork
RFC: FROMLIST: cgroup: avoid synchronize_sched() in __cgroup_procs_write()
RFC: FROMLIST: locking/percpu-rwsem: Optimize readers and reduce global impact
net: ipv6: Fix ping to link-local addresses.
ipv6: fix endianness error in icmpv6_err
ANDROID: dm: android-verity: Allow android-verity to be compiled as an independent module
backporting: a brief introduce of backported feautures on 4.4
Linux 4.4.20
sysfs: correctly handle read offset on PREALLOC attrs
hwmon: (iio_hwmon) fix memory leak in name attribute
ALSA: line6: Fix POD sysfs attributes segfault
ALSA: line6: Give up on the lock while URBs are released.
ALSA: line6: Remove double line6_pcm_release() after failed acquire.
ACPI / SRAT: fix SRAT parsing order with both LAPIC and X2APIC present
ACPI / sysfs: fix error code in get_status()
ACPI / drivers: replace acpi_probe_lock spinlock with mutex
ACPI / drivers: fix typo in ACPI_DECLARE_PROBE_ENTRY macro
staging: comedi: ni_mio_common: fix wrong insn_write handler
staging: comedi: ni_mio_common: fix AO inttrig backwards compatibility
staging: comedi: comedi_test: fix timer race conditions
staging: comedi: daqboard2000: bug fix board type matching code
USB: serial: option: add WeTelecom 0x6802 and 0x6803 products
USB: serial: option: add WeTelecom WM-D200
USB: serial: mos7840: fix non-atomic allocation in write path
USB: serial: mos7720: fix non-atomic allocation in write path
USB: fix typo in wMaxPacketSize validation
usb: chipidea: udc: don't touch DP when controller is in host mode
USB: avoid left shift by -1
dmaengine: usb-dmac: check CHCR.DE bit in usb_dmac_isr_channel()
crypto: qat - fix aes-xts key sizes
crypto: nx - off by one bug in nx_of_update_msc()
Input: i8042 - set up shared ps2_cmd_mutex for AUX ports
Input: i8042 - break load dependency between atkbd/psmouse and i8042
Input: tegra-kbc - fix inverted reset logic
btrfs: properly track when rescan worker is running
btrfs: waiting on qgroup rescan should not always be interruptible
fs/seq_file: fix out-of-bounds read
gpio: Fix OF build problem on UM
usb: renesas_usbhs: gadget: fix return value check in usbhs_mod_gadget_probe()
megaraid_sas: Fix probing cards without io port
mpt3sas: Fix resume on WarpDrive flash cards
cdc-acm: fix wrong pipe type on rx interrupt xfers
i2c: cros-ec-tunnel: Fix usage of cros_ec_cmd_xfer()
mfd: cros_ec: Add cros_ec_cmd_xfer_status() helper
aacraid: Check size values after double-fetch from user
ARC: Elide redundant setup of DMA callbacks
ARC: Call trace_hardirqs_on() before enabling irqs
ARC: use correct offset in pt_regs for saving/restoring user mode r25
ARC: build: Better way to detect ISA compatible toolchain
drm/i915: fix aliasing_ppgtt leak
drm/amdgpu: record error code when ring test failed
drm/amd/amdgpu: sdma resume fail during S4 on CI
drm/amdgpu: skip TV/CV in display parsing
drm/amdgpu: avoid a possible array overflow
drm/amdgpu: fix amdgpu_move_blit on 32bit systems
drm/amdgpu: Change GART offset to 64-bit
iio: fix sched WARNING "do not call blocking ops when !TASK_RUNNING"
sched/nohz: Fix affine unpinned timers mess
sched/cputime: Fix NO_HZ_FULL getrusage() monotonicity regression
of: fix reference counting in of_graph_get_endpoint_by_regs
arm64: dts: rockchip: add reset saradc node for rk3368 SoCs
mac80211: fix purging multicast PS buffer queue
s390/dasd: fix hanging device after clear subchannel
EDAC: Increment correct counter in edac_inc_ue_error()
pinctrl/amd: Remove the default de-bounce time
iommu/arm-smmu: Don't BUG() if we find aborting STEs with disable_bypass
iommu/arm-smmu: Fix CMDQ error handling
iommu/dma: Don't put uninitialised IOVA domains
xhci: Make sure xhci handles USB_SPEED_SUPER_PLUS devices.
USB: serial: ftdi_sio: add PIDs for Ivium Technologies devices
USB: serial: ftdi_sio: add device ID for WICED USB UART dev board
USB: serial: option: add support for Telit LE920A4
USB: serial: option: add D-Link DWM-156/A3
USB: serial: fix memleak in driver-registration error path
xhci: don't dereference a xhci member after removing xhci
usb: xhci: Fix panic if disconnect
xhci: always handle "Command Ring Stopped" events
usb/gadget: fix gadgetfs aio support.
usb: gadget: fsl_qe_udc: off by one in setup_received_handle()
USB: validate wMaxPacketValue entries in endpoint descriptors
usb: renesas_usbhs: Use dmac only if the pipe type is bulk
usb: renesas_usbhs: clear the BRDYSTS in usbhsg_ep_enable()
USB: hub: change the locking in hub_activate
USB: hub: fix up early-exit pathway in hub_activate
usb: hub: Fix unbalanced reference count/memory leak/deadlocks
usb: define USB_SPEED_SUPER_PLUS speed for SuperSpeedPlus USB3.1 devices
usb: dwc3: gadget: increment request->actual once
usb: dwc3: pci: add Intel Kabylake PCI ID
usb: misc: usbtest: add fix for driver hang
usb: ehci: change order of register cleanup during shutdown
crypto: caam - defer aead_set_sh_desc in case of zero authsize
crypto: caam - fix echainiv(authenc) encrypt shared descriptor
crypto: caam - fix non-hmac hashes
genirq/msi: Make sure PCI MSIs are activated early
genirq/msi: Remove unused MSI_FLAG_IDENTITY_MAP
um: Don't discard .text.exit section
ACPI / CPPC: Prevent cpc_desc_ptr points to the invalid data
ACPI: CPPC: Return error if _CPC is invalid on a CPU
mmc: sdhci-acpi: Reduce Baytrail eMMC/SD/SDIO hangs
PCI: Limit config space size for Netronome NFP4000
PCI: Add Netronome NFP4000 PF device ID
PCI: Limit config space size for Netronome NFP6000 family
PCI: Add Netronome vendor and device IDs
PCI: Support PCIe devices with short cfg_size
NVMe: Don't unmap controller registers on reset
ALSA: hda - Manage power well properly for resume
libnvdimm, nd_blk: mask off reserved status bits
perf intel-pt: Fix occasional decoding errors when tracing system-wide
vfio/pci: Fix NULL pointer oops in error interrupt setup handling
virtio: fix memory leak in virtqueue_add()
parisc: Fix order of EREFUSED define in errno.h
arm64: Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO
ALSA: usb-audio: Add quirk for ELP HD USB Camera
ALSA: usb-audio: Add a sample rate quirk for Creative Live! Cam Socialize HD (VF0610)
powerpc/eeh: eeh_pci_enable(): fix checking of post-request state
SUNRPC: allow for upcalls for same uid but different gss service
SUNRPC: Handle EADDRNOTAVAIL on connection failures
tools/testing/nvdimm: fix SIGTERM vs hotplug crash
uprobes/x86: Fix RIP-relative handling of EVEX-encoded instructions
x86/mm: Disable preemption during CR3 read+write
hugetlb: fix nr_pmds accounting with shared page tables
mm: SLUB hardened usercopy support
mm: SLAB hardened usercopy support
s390/uaccess: Enable hardened usercopy
sparc/uaccess: Enable hardened usercopy
powerpc/uaccess: Enable hardened usercopy
ia64/uaccess: Enable hardened usercopy
arm64/uaccess: Enable hardened usercopy
ARM: uaccess: Enable hardened usercopy
x86/uaccess: Enable hardened usercopy
x86: remove more uaccess_32.h complexity
x86: remove pointless uaccess_32.h complexity
x86: fix SMAP in 32-bit environments
Use the new batched user accesses in generic user string handling
Add 'unsafe' user access functions for batched accesses
x86: reorganize SMAP handling in user space accesses
mm: Hardened usercopy
mm: Implement stack frame object validation
mm: Add is_migrate_cma_page
Linux 4.4.19
Documentation/module-signing.txt: Note need for version info if reusing a key
module: Invalidate signatures on force-loaded modules
dm flakey: error READ bios during the down_interval
rtc: s3c: Add s3c_rtc_{enable/disable}_clk in s3c_rtc_setfreq()
lpfc: fix oops in lpfc_sli4_scmd_to_wqidx_distr() from lpfc_send_taskmgmt()
ACPI / EC: Work around method reentrancy limit in ACPICA for _Qxx
x86/platform/intel_mid_pci: Rework IRQ0 workaround
PCI: Mark Atheros AR9485 and QCA9882 to avoid bus reset
MIPS: hpet: Increase HPET_MIN_PROG_DELTA and decrease HPET_MIN_CYCLES
MIPS: Don't register r4k sched clock when CPUFREQ enabled
MIPS: mm: Fix definition of R6 cache instruction
SUNRPC: Don't allocate a full sockaddr_storage for tracing
Input: elan_i2c - properly wake up touchpad on ASUS laptops
target: Fix ordered task CHECK_CONDITION early exception handling
target: Fix max_unmap_lba_count calc overflow
target: Fix race between iscsi-target connection shutdown + ABORT_TASK
target: Fix missing complete during ABORT_TASK + CMD_T_FABRIC_STOP
target: Fix ordered task target_setup_cmd_from_cdb exception hang
iscsi-target: Fix panic when adding second TCP connection to iSCSI session
ubi: Fix race condition between ubi device creation and udev
ubi: Fix early logging
ubi: Make volume resize power cut aware
of: fix memory leak related to safe_name()
IB/mlx4: Fix memory leak if QP creation failed
IB/mlx4: Fix error flow when sending mads under SRIOV
IB/mlx4: Fix the SQ size of an RC QP
IB/IWPM: Fix a potential skb leak
IB/IPoIB: Don't update neigh validity for unresolved entries
IB/SA: Use correct free function
IB/mlx5: Return PORT_ERR in Active to Initializing tranisition
IB/mlx5: Fix post send fence logic
IB/mlx5: Fix entries check in mlx5_ib_resize_cq
IB/mlx5: Fix returned values of query QP
IB/mlx5: Fix entries checks in mlx5_ib_create_cq
IB/mlx5: Fix MODIFY_QP command input structure
ALSA: hda - Fix headset mic detection problem for two dell machines
ALSA: hda: add AMD Bonaire AZ PCI ID with proper driver caps
ALSA: hda/realtek - Can't adjust speaker's volume on a Dell AIO
ALSA: hda: Fix krealloc() with __GFP_ZERO usage
mm/hugetlb: avoid soft lockup in set_max_huge_pages()
mtd: nand: fix bug writing 1 byte less than page size
block: fix bdi vs gendisk lifetime mismatch
block: add missing group association in bio-cloning functions
metag: Fix __cmpxchg_u32 asm constraint for CMP
ftrace/recordmcount: Work around for addition of metag magic but not relocations
balloon: check the number of available pages in leak balloon
drm/i915/dp: Revert "drm/i915/dp: fall back to 18 bpp when sink capability is unknown"
drm/i915: Never fully mask the the EI up rps interrupt on SNB/IVB
drm/edid: Add 6 bpc quirk for display AEO model 0.
drm: Restore double clflush on the last partial cacheline
drm/nouveau/fbcon: fix font width not divisible by 8
drm/nouveau/gr/nv3x: fix instobj write offsets in gr setup
drm/nouveau: check for supported chipset before booting fbdev off the hw
drm/radeon: support backlight control for UNIPHY3
drm/radeon: fix firmware info version checks
drm/radeon: Poll for both connect/disconnect on analog connectors
drm/radeon: add a delay after ATPX dGPU power off
drm/amdgpu/gmc7: add missing mullins case
drm/amdgpu: fix firmware info version checks
drm/amdgpu: Disable RPM helpers while reprobing connectors on resume
drm/amdgpu: support backlight control for UNIPHY3
drm/amdgpu: Poll for both connect/disconnect on analog connectors
drm/amdgpu: add a delay after ATPX dGPU power off
w1:omap_hdq: fix regression
netlabel: add address family checks to netlbl_{sock,req}_delattr()
ARM: dts: sunxi: Add a startup delay for fixed regulator enabled phys
audit: fix a double fetch in audit_log_single_execve_arg()
iommu/amd: Update Alias-DTE in update_device_table()
iommu/amd: Init unity mappings only for dma_ops domains
iommu/amd: Handle IOMMU_DOMAIN_DMA in ops->domain_free call-back
iommu/vt-d: Return error code in domain_context_mapping_one()
iommu/exynos: Suppress unbinding to prevent system failure
drm/i915: Don't complain about lack of ACPI video bios
nfsd: don't return an unhashed lock stateid after taking mutex
nfsd: Fix race between FREE_STATEID and LOCK
nfs: don't create zero-length requests
MIPS: KVM: Propagate kseg0/mapped tlb fault errors
MIPS: KVM: Fix gfn range check in kseg0 tlb faults
MIPS: KVM: Add missing gfn range check
MIPS: KVM: Fix mapped fault broken commpage handling
random: add interrupt callback to VMBus IRQ handler
random: print a warning for the first ten uninitialized random users
random: initialize the non-blocking pool via add_hwgenerator_randomness()
CIFS: Fix a possible invalid memory access in smb2_query_symlink()
cifs: fix crash due to race in hmac(md5) handling
cifs: Check for existing directory when opening file with O_CREAT
fs/cifs: make share unaccessible at root level mountable
jbd2: make journal y2038 safe
ARC: mm: don't loose PTE_SPECIAL in pte_modify()
remoteproc: Fix potential race condition in rproc_add
ovl: disallow overlayfs as upperdir
HID: uhid: fix timeout when probe races with IO
EDAC: Correct channel count limit
Bluetooth: Fix l2cap_sock_setsockopt() with optname BT_RCVMTU
spi: pxa2xx: Clear all RFT bits in reset_sccr1() on Intel Quark
i2c: efm32: fix a failure path in efm32_i2c_probe()
s5p-mfc: Add release callback for memory region devs
s5p-mfc: Set device name for reserved memory region devs
hp-wmi: Fix wifi cannot be hard-unblocked
dm: set DMF_SUSPENDED* _before_ clearing DMF_NOFLUSH_SUSPENDING
sur40: fix occasional oopses on device close
sur40: lower poll interval to fix occasional FPS drops to ~56 FPS
Fix RC5 decoding with Fintek CIR chipset
vb2: core: Skip planes array verification if pb is NULL
videobuf2-v4l2: Verify planes array in buffer dequeueing
media: dvb_ringbuffer: Add memory barriers
media: usbtv: prevent access to free'd resources
mfd: qcom_rpm: Parametrize also ack selector size
mfd: qcom_rpm: Fix offset error for msm8660
intel_pstate: Fix MSR_CONFIG_TDP_x addressing in core_get_max_pstate()
s390/cio: allow to reset channel measurement block
KVM: nVMX: Fix memory corruption when using VMCS shadowing
KVM: VMX: handle PML full VMEXIT that occurs during event delivery
KVM: MTRR: fix kvm_mtrr_check_gfn_range_consistency page fault
KVM: PPC: Book3S HV: Save/restore TM state in H_CEDE
KVM: PPC: Book3S HV: Pull out TM state save/restore into separate procedures
arm64: mm: avoid fdt_check_header() before the FDT is fully mapped
arm64: dts: rockchip: fixes the gic400 2nd region size for rk3368
pinctrl: cherryview: prevent concurrent access to GPIO controllers
Bluetooth: hci_intel: Fix null gpio desc pointer dereference
gpio: intel-mid: Remove potentially harmful code
gpio: pca953x: Fix NBANK calculation for PCA9536
tty/serial: atmel: fix RS485 half duplex with DMA
serial: samsung: Fix ERR pointer dereference on deferred probe
tty: serial: msm: Don't read off end of tx fifo
arm64: Fix incorrect per-cpu usage for boot CPU
arm64: debug: unmask PSTATE.D earlier
arm64: kernel: Save and restore UAO and addr_limit on exception entry
USB: usbfs: fix potential infoleak in devio
usb: renesas_usbhs: fix NULL pointer dereference in xfer_work()
USB: serial: option: add support for Telit LE910 PID 0x1206
usb: dwc3: fix for the isoc transfer EP_BUSY flag
usb: quirks: Add no-lpm quirk for Elan
usb: renesas_usbhs: protect the CFIFOSEL setting in usbhsg_ep_enable()
usb: f_fs: off by one bug in _ffs_func_bind()
usb: gadget: avoid exposing kernel stack
UPSTREAM: usb: gadget: configfs: add mutex lock before unregister gadget
ANDROID: dm-verity: adopt changes made to dm callbacks
UPSTREAM: ecryptfs: fix handling of directory opening
ANDROID: net: core: fix UID-based routing
ANDROID: net: fib: remove duplicate assignment
FROMLIST: proc: Fix timerslack_ns CAP_SYS_NICE check when adjusting self
ANDROID: dm verity fec: pack the fec_header structure
ANDROID: dm: android-verity: Verify header before fetching table
ANDROID: dm: allow adb disable-verity only in userdebug
ANDROID: dm: mount as linear target if eng build
ANDROID: dm: use default verity public key
ANDROID: dm: fix signature verification flag
ANDROID: dm: use name_to_dev_t
ANDROID: dm: rename dm-linear methods for dm-android-verity
ANDROID: dm: Minor cleanup
ANDROID: dm: Mounting root as linear device when verity disabled
ANDROID: dm-android-verity: Rebase on top of 4.1
ANDROID: dm: Add android verity target
ANDROID: dm: fix dm_substitute_devices()
ANDROID: dm: Rebase on top of 4.1
CHROMIUM: dm: boot time specification of dm=
Implement memory_state_time, used by qcom,cpubw
Revert "panic: Add board ID to panic output"
usb: gadget: f_accessory: remove duplicate endpoint alloc
BACKPORT: brcmfmac: defer DPC processing during probe
FROMLIST: proc: Add LSM hook checks to /proc/<tid>/timerslack_ns
FROMLIST: proc: Relax /proc/<tid>/timerslack_ns capability requirements
UPSTREAM: ppp: defer netns reference release for ppp channel
cpuset: Add allow_attach hook for cpusets on android.
UPSTREAM: KEYS: Fix ASN.1 indefinite length object parsing
ANDROID: sdcardfs: fix itnull.cocci warnings
android-recommended.cfg: enable fstack-protector-strong
Linux 4.4.18
mm: memcontrol: fix memcg id ref counter on swap charge move
mm: memcontrol: fix swap counter leak on swapout from offline cgroup
mm: memcontrol: fix cgroup creation failure after many small jobs
ext4: fix reference counting bug on block allocation error
ext4: short-cut orphan cleanup on error
ext4: validate s_reserved_gdt_blocks on mount
ext4: don't call ext4_should_journal_data() on the journal inode
ext4: fix deadlock during page writeback
ext4: check for extents that wrap around
crypto: scatterwalk - Fix test in scatterwalk_done
crypto: gcm - Filter out async ghash if necessary
fs/dcache.c: avoid soft-lockup in dput()
fuse: fix wrong assignment of ->flags in fuse_send_init()
fuse: fuse_flush must check mapping->flags for errors
fuse: fsync() did not return IO errors
sysv, ipc: fix security-layer leaking
block: fix use-after-free in seq file
x86/syscalls/64: Add compat_sys_keyctl for 32-bit userspace
drm/i915: Pretend cursor is always on for ILK-style WM calculations (v2)
x86/mm/pat: Fix BUG_ON() in mmap_mem() on QEMU/i386
x86/pat: Document the PAT initialization sequence
x86/xen, pat: Remove PAT table init code from Xen
x86/mtrr: Fix PAT init handling when MTRR is disabled
x86/mtrr: Fix Xorg crashes in Qemu sessions
x86/mm/pat: Replace cpu_has_pat with boot_cpu_has()
x86/mm/pat: Add pat_disable() interface
x86/mm/pat: Add support of non-default PAT MSR setting
devpts: clean up interface to pty drivers
random: strengthen input validation for RNDADDTOENTCNT
apparmor: fix ref count leak when profile sha1 hash is read
Revert "s390/kdump: Clear subchannel ID to signal non-CCW/SCSI IPL"
KEYS: 64-bit MIPS needs to use compat_sys_keyctl for 32-bit userspace
arm: oabi compat: add missing access checks
cdc_ncm: do not call usbnet_link_change from cdc_ncm_bind
i2c: i801: Allow ACPI SystemIO OpRegion to conflict with PCI BAR
x86/mm/32: Enable full randomization on i386 and X86_32
HID: sony: do not bail out when the sixaxis refuses the output report
PNP: Add Broadwell to Intel MCH size workaround
PNP: Add Haswell-ULT to Intel MCH size workaround
scsi: ignore errors from scsi_dh_add_device()
ipath: Restrict use of the write() interface
tcp: consider recv buf for the initial window scale
qed: Fix setting/clearing bit in completion bitmap
net/irda: fix NULL pointer dereference on memory allocation failure
net: bgmac: Fix infinite loop in bgmac_dma_tx_add()
bonding: set carrier off for devices created through netlink
ipv4: reject RTNH_F_DEAD and RTNH_F_LINKDOWN from user space
tcp: enable per-socket rate limiting of all 'challenge acks'
tcp: make challenge acks less predictable
arm64: relocatable: suppress R_AARCH64_ABS64 relocations in vmlinux
arm64: vmlinux.lds: make __rela_offset and __dynsym_offset ABSOLUTE
Linux 4.4.17
vfs: fix deadlock in file_remove_privs() on overlayfs
intel_th: Fix a deadlock in modprobing
intel_th: pci: Add Kaby Lake PCH-H support
net: mvneta: set real interrupt per packet for tx_done
libceph: apply new_state before new_up_client on incrementals
libata: LITE-ON CX1-JB256-HP needs lower max_sectors
i2c: mux: reg: wrong condition checked for of_address_to_resource return value
posix_cpu_timer: Exit early when process has been reaped
media: fix airspy usb probe error path
ipr: Clear interrupt on croc/crocodile when running with LSI
SCSI: fix new bug in scsi_dev_info_list string matching
RDS: fix rds_tcp_init() error path
can: fix oops caused by wrong rtnl dellink usage
can: fix handling of unmodifiable configuration options fix
can: c_can: Update D_CAN TX and RX functions to 32 bit - fix Altera Cyclone access
can: at91_can: RX queue could get stuck at high bus load
perf/x86: fix PEBS issues on Intel Atom/Core2
ovl: handle ATTR_KILL*
sched/fair: Fix effective_load() to consistently use smoothed load
mmc: block: fix packed command header endianness
block: fix use-after-free in sys_ioprio_get()
qeth: delete napi struct when removing a qeth device
platform/chrome: cros_ec_dev - double fetch bug in ioctl
clk: rockchip: initialize flags of clk_init_data in mmc-phase clock
spi: sun4i: fix FIFO limit
spi: sunxi: fix transfer timeout
namespace: update event counter when umounting a deleted dentry
9p: use file_dentry()
ext4: verify extent header depth
ecryptfs: don't allow mmap when the lower fs doesn't support it
Revert "ecryptfs: forbid opening files without mmap handler"
locks: use file_inode()
power_supply: power_supply_read_temp only if use_cnt > 0
cgroup: set css->id to -1 during init
pinctrl: imx: Do not treat a PIN without MUX register as an error
pinctrl: single: Fix missing flush of posted write for a wakeirq
pvclock: Add CPU barriers to get correct version value
Input: tsc200x - report proper input_dev name
Input: xpad - validate USB endpoint count during probe
Input: wacom_w8001 - w8001_MAX_LENGTH should be 13
Input: xpad - fix oops when attaching an unknown Xbox One gamepad
Input: elantech - add more IC body types to the list
Input: vmmouse - remove port reservation
ALSA: timer: Fix leak in events via snd_timer_user_tinterrupt
ALSA: timer: Fix leak in events via snd_timer_user_ccallback
ALSA: timer: Fix leak in SNDRV_TIMER_IOCTL_PARAMS
xenbus: don't bail early from xenbus_dev_request_and_reply()
xenbus: don't BUG() on user mode induced condition
xen/pciback: Fix conf_space read/write overlap check.
ARC: unwind: ensure that .debug_frame is generated (vs. .eh_frame)
arc: unwind: warn only once if DW2_UNWIND is disabled
kernel/sysrq, watchdog, sched/core: Reset watchdog on all CPUs while processing sysrq-w
pps: do not crash when failed to register
vmlinux.lds: account for destructor sections
mm, meminit: ensure node is online before checking whether pages are uninitialised
mm, meminit: always return a valid node from early_pfn_to_nid
mm, compaction: prevent VM_BUG_ON when terminating freeing scanner
fs/nilfs2: fix potential underflow in call to crc32_le
mm, compaction: abort free scanner if split fails
mm, sl[au]b: add __GFP_ATOMIC to the GFP reclaim mask
dmaengine: at_xdmac: double FIFO flush needed to compute residue
dmaengine: at_xdmac: fix residue corruption
dmaengine: at_xdmac: align descriptors on 64 bits
x86/quirks: Add early quirk to reset Apple AirPort card
x86/quirks: Reintroduce scanning of secondary buses
x86/quirks: Apply nvidia_bugs quirk only on root bus
USB: OHCI: Don't mark EDs as ED_OPER if scheduling fails
Conflicts:
arch/arm/kernel/topology.c
arch/arm64/include/asm/arch_gicv3.h
arch/arm64/kernel/topology.c
block/bio.c
drivers/cpufreq/Kconfig
drivers/md/Makefile
drivers/media/dvb-core/dvb_ringbuffer.c
drivers/media/tuners/tuner-xc2028.c
drivers/misc/Kconfig
drivers/misc/Makefile
drivers/mmc/core/host.c
drivers/scsi/ufs/ufshcd.c
drivers/scsi/ufs/ufshcd.h
drivers/usb/dwc3/gadget.c
drivers/usb/gadget/configfs.c
fs/ecryptfs/file.c
include/linux/mmc/core.h
include/linux/mmc/host.h
include/linux/mmzone.h
include/linux/sched.h
include/linux/sched/sysctl.h
include/trace/events/power.h
include/trace/events/sched.h
init/Kconfig
kernel/cpuset.c
kernel/exit.c
kernel/sched/Makefile
kernel/sched/core.c
kernel/sched/cputime.c
kernel/sched/fair.c
kernel/sched/features.h
kernel/sched/rt.c
kernel/sched/sched.h
kernel/sched/stop_task.c
kernel/sched/tune.c
lib/Kconfig.debug
mm/Makefile
mm/vmstat.c
Change-Id: I243a43231ca56a6362076fa6301827e1b0493be5
Signed-off-by: Runmin Wang <runminw@codeaurora.org>
commit 3d40658c977769ce2138f286cf131537bf68bdfe upstream.
After a policy replacement, the task cred may be out of date and need
to be updated. However change_hat is using the stale profiles from
the out of date cred resulting in either: a stale profile being applied
or, incorrect failure when searching for a hat profile as it has been
migrated to the new parent profile.
Fixes: 01e2b670aa (failure to find hat)
Fixes: 898127c34e (stale policy being applied)
Bugzilla: https://bugzilla.suse.com/show_bug.cgi?id=1000287
Signed-off-by: John Johansen <john.johansen@canonical.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 03dab869b7b239c4e013ec82aea22e181e441cfc upstream.
This fixes CVE-2016-7042.
Fix a short sprintf buffer in proc_keys_show(). If the gcc stack protector
is turned on, this can cause a panic due to stack corruption.
The problem is that xbuf[] is not big enough to hold a 64-bit timeout
rendered as weeks:
(gdb) p 0xffffffffffffffffULL/(60*60*24*7)
$2 = 30500568904943
That's 14 chars plus NUL, not 11 chars plus NUL.
Expand the buffer to 16 chars.
I think the unpatched code apparently works if the stack-protector is not
enabled because on a 32-bit machine the buffer won't be overflowed and on a
64-bit machine there's a 64-bit aligned pointer at one side and an int that
isn't checked again on the other side.
The panic incurred looks something like:
Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: ffffffff81352ebe
CPU: 0 PID: 1692 Comm: reproducer Not tainted 4.7.2-201.fc24.x86_64 #1
Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011
0000000000000086 00000000fbbd2679 ffff8800a044bc00 ffffffff813d941f
ffffffff81a28d58 ffff8800a044bc98 ffff8800a044bc88 ffffffff811b2cb6
ffff880000000010 ffff8800a044bc98 ffff8800a044bc30 00000000fbbd2679
Call Trace:
[<ffffffff813d941f>] dump_stack+0x63/0x84
[<ffffffff811b2cb6>] panic+0xde/0x22a
[<ffffffff81352ebe>] ? proc_keys_show+0x3ce/0x3d0
[<ffffffff8109f7f9>] __stack_chk_fail+0x19/0x30
[<ffffffff81352ebe>] proc_keys_show+0x3ce/0x3d0
[<ffffffff81350410>] ? key_validate+0x50/0x50
[<ffffffff8134db30>] ? key_default_cmp+0x20/0x20
[<ffffffff8126b31c>] seq_read+0x2cc/0x390
[<ffffffff812b6b12>] proc_reg_read+0x42/0x70
[<ffffffff81244fc7>] __vfs_read+0x37/0x150
[<ffffffff81357020>] ? security_file_permission+0xa0/0xc0
[<ffffffff81246156>] vfs_read+0x96/0x130
[<ffffffff81247635>] SyS_read+0x55/0xc0
[<ffffffff817eb872>] entry_SYSCALL_64_fastpath+0x1a/0xa4
Reported-by: Ondrej Kozina <okozina@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Ondrej Kozina <okozina@redhat.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* 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>
commit e71b9dff0634edb127f449e076e883ef24a8c76c upstream.
Ima tries to call ->setxattr() on overlayfs dentry after having locked
underlying inode, which results in a deadlock.
Reported-by: Krisztian Litkey <kli@iki.fi>
Fixes: 4bacc9c923 ("overlayfs: Make f_path always point to the overlay and f_inode to the underlay")
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Cc: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Unfortunately we record PIDs in audit records using a variety of
methods despite the correct way being the use of task_tgid_nr().
This patch converts all of these callers, except for the case of
AUDIT_SET in audit_receive_msg() (see the comment in the code).
Reported-by: Jeff Vander Stoep <jeffv@google.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Bug: 28952093
(cherry picked from commit fa2bea2f5cca5b8d4a3e5520d2e8c0ede67ac108)
Signed-off-by: Jeff Vander Stoep <jeffv@google.com>
Change-Id: If6645f9de8bc58ed9755f28dc6af5fbf08d72a00
Unfortunately we record PIDs in audit records using a variety of
methods despite the correct way being the use of task_tgid_nr().
This patch converts all of these callers, except for the case of
AUDIT_SET in audit_receive_msg() (see the comment in the code).
Reported-by: Jeff Vander Stoep <jeffv@google.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Bug: 28952093
(cherry picked from commit fa2bea2f5cca5b8d4a3e5520d2e8c0ede67ac108)
Signed-off-by: Jeff Vander Stoep <jeffv@google.com>
Change-Id: If6645f9de8bc58ed9755f28dc6af5fbf08d72a00
A custom allocator without __GFP_COMP that copies to userspace has been
found in vmw_execbuf_process[1], so this disables the page-span checker
by placing it behind a CONFIG for future work where such things can be
tracked down later.
[1] https://bugzilla.redhat.com/show_bug.cgi?id=1373326
Reported-by: Vinson Lee <vlee@freedesktop.org>
Fixes: f5509cc18daa ("mm: Hardened usercopy")
Signed-off-by: Kees Cook <keescook@chromium.org>
(cherry picked from commit 8e1f74ea02cf4562404c48c6882214821552c13f)
Signed-off-by: Alex Shi <alex.shi@linaro.org>
Numerous changes were introduced to various layers:
Block: removed dependency on selinux module for decision on bio merge
EXT4: Added feature controlled support for HW encryption
PFK: Major re-factoring, separation to eCryptfs and EXT4 sub-layers
Change-Id: I9256c8736e1c16175fe3f94733dda430ccc57980
Signed-off-by: Andrey Markovytch <andreym@codeaurora.org>
A custom allocator without __GFP_COMP that copies to userspace has been
found in vmw_execbuf_process[1], so this disables the page-span checker
by placing it behind a CONFIG for future work where such things can be
tracked down later.
[1] https://bugzilla.redhat.com/show_bug.cgi?id=1373326
Reported-by: Vinson Lee <vlee@freedesktop.org>
Fixes: f5509cc18daa ("mm: Hardened usercopy")
Signed-off-by: Kees Cook <keescook@chromium.org>
Change-Id: I4177c0fb943f14a5faf5c70f5e54bf782c316f43
(cherry picked from commit 8e1f74ea02cf4562404c48c6882214821552c13f)
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
The kernel test robot reported a usercopy failure in the new hardened
sanity checks, due to a page-crossing copy of the FPU state into the
task structure.
This happened because the kernel test robot was testing with SLOB, which
doesn't actually do the required book-keeping for slab allocations, and
as a result the hardening code didn't realize that the task struct
allocation was one single allocation - and the sanity checks fail.
Since SLOB doesn't even claim to support hardening (and you really
shouldn't use it), the straightforward solution is to just make the
usercopy hardening code depend on the allocator supporting it.
Reported-by: kernel test robot <xiaolong.ye@intel.com>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Change-Id: I37d51f866f873341bf7d5297249899b852e1c6ce
(cherry picked from commit 6040e57658eee6eb1315a26119101ca832d1f854)
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
If __key_link_begin() failed then "edit" would be uninitialized. I've
added a check to fix that.
This allows a random user to crash the kernel, though it's quite
difficult to achieve. There are three ways it can be done as the user
would have to cause an error to occur in __key_link():
(1) Cause the kernel to run out of memory. In practice, this is difficult
to achieve without ENOMEM cropping up elsewhere and aborting the
attempt.
(2) Revoke the destination keyring between the keyring ID being looked up
and it being tested for revocation. In practice, this is difficult to
time correctly because the KEYCTL_REJECT function can only be used
from the request-key upcall process. Further, users can only make use
of what's in /sbin/request-key.conf, though this does including a
rejection debugging test - which means that the destination keyring
has to be the caller's session keyring in practice.
(3) Have just enough key quota available to create a key, a new session
keyring for the upcall and a link in the session keyring, but not then
sufficient quota to create a link in the nominated destination keyring
so that it fails with EDQUOT.
The bug can be triggered using option (3) above using something like the
following:
echo 80 >/proc/sys/kernel/keys/root_maxbytes
keyctl request2 user debug:fred negate @t
The above sets the quota to something much lower (80) to make the bug
easier to trigger, but this is dependent on the system. Note also that
the name of the keyring created contains a random number that may be
between 1 and 10 characters in size, so may throw the test off by
changing the amount of quota used.
Assuming the failure occurs, something like the following will be seen:
kfree_debugcheck: out of range ptr 6b6b6b6b6b6b6b68h
------------[ cut here ]------------
kernel BUG at ../mm/slab.c:2821!
...
RIP: 0010:[<ffffffff811600f9>] kfree_debugcheck+0x20/0x25
RSP: 0018:ffff8804014a7de8 EFLAGS: 00010092
RAX: 0000000000000034 RBX: 6b6b6b6b6b6b6b68 RCX: 0000000000000000
RDX: 0000000000040001 RSI: 00000000000000f6 RDI: 0000000000000300
RBP: ffff8804014a7df0 R08: 0000000000000001 R09: 0000000000000000
R10: ffff8804014a7e68 R11: 0000000000000054 R12: 0000000000000202
R13: ffffffff81318a66 R14: 0000000000000000 R15: 0000000000000001
...
Call Trace:
kfree+0xde/0x1bc
assoc_array_cancel_edit+0x1f/0x36
__key_link_end+0x55/0x63
key_reject_and_link+0x124/0x155
keyctl_reject_key+0xb6/0xe0
keyctl_negate_key+0x10/0x12
SyS_keyctl+0x9f/0xe7
do_syscall_64+0x63/0x13a
entry_SYSCALL64_slow_path+0x25/0x25
Fixes: f70e2e0619 ('KEYS: Do preallocation for __key_link()')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dennis Cagle <d-cagle@codeaurora.org>
Git-repo: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git
Git-commit: 38327424b40bcebe2de92d07312c89360ac9229a
(cherry picked from commit 38327424b40bcebe2de92d07312c89360ac9229a)
Change-Id: I07568c78448b9d4bcc19b506ac0cbeb3d8af6961
When kernel.perf_event_open is set to 3 (or greater), disallow all
access to performance events by users without CAP_SYS_ADMIN.
Add a Kconfig symbol CONFIG_SECURITY_PERF_EVENTS_RESTRICT that
makes this value the default.
This is based on a similar feature in grsecurity
(CONFIG_GRKERNSEC_PERF_HARDEN). This version doesn't include making
the variable read-only. It also allows enabling further restriction
at run-time regardless of whether the default is changed.
https://lkml.org/lkml/2016/1/11/587
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Git-repo: https://android.googlesource.com/kernel/common.git
Git-commit: 012b0adcf7299f6509d4984cf46ee11e6eaed4e4
[d-cagle@codeaurora.org: Resolve trivial merge conflicts]
Signed-off-by: Dennis Cagle <d-cagle@codeaurora.org>
Bug: 29054680
Change-Id: Iff5bff4fc1042e85866df9faa01bce8d04335ab8
A custom allocator without __GFP_COMP that copies to userspace has been
found in vmw_execbuf_process[1], so this disables the page-span checker
by placing it behind a CONFIG for future work where such things can be
tracked down later.
[1] https://bugzilla.redhat.com/show_bug.cgi?id=1373326
Reported-by: Vinson Lee <vlee@freedesktop.org>
Fixes: f5509cc18daa ("mm: Hardened usercopy")
Signed-off-by: Kees Cook <keescook@chromium.org>
Change-Id: I4177c0fb943f14a5faf5c70f5e54bf782c316f43
(cherry picked from commit 8e1f74ea02cf4562404c48c6882214821552c13f)
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
The kernel test robot reported a usercopy failure in the new hardened
sanity checks, due to a page-crossing copy of the FPU state into the
task structure.
This happened because the kernel test robot was testing with SLOB, which
doesn't actually do the required book-keeping for slab allocations, and
as a result the hardening code didn't realize that the task struct
allocation was one single allocation - and the sanity checks fail.
Since SLOB doesn't even claim to support hardening (and you really
shouldn't use it), the straightforward solution is to just make the
usercopy hardening code depend on the allocator supporting it.
Reported-by: kernel test robot <xiaolong.ye@intel.com>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Change-Id: I37d51f866f873341bf7d5297249899b852e1c6ce
(cherry picked from commit 6040e57658eee6eb1315a26119101ca832d1f854)
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
This is the start of porting PAX_USERCOPY into the mainline kernel. This
is the first set of features, controlled by CONFIG_HARDENED_USERCOPY. The
work is based on code by PaX Team and Brad Spengler, and an earlier port
from Casey Schaufler. Additional non-slab page tests are from Rik van Riel.
This patch contains the logic for validating several conditions when
performing copy_to_user() and copy_from_user() on the kernel object
being copied to/from:
- address range doesn't wrap around
- address range isn't NULL or zero-allocated (with a non-zero copy size)
- if on the slab allocator:
- object size must be less than or equal to copy size (when check is
implemented in the allocator, which appear in subsequent patches)
- otherwise, object must not span page allocations (excepting Reserved
and CMA ranges)
- if on the stack
- object must not extend before/after the current process stack
- object must be contained by a valid stack frame (when there is
arch/build support for identifying stack frames)
- object must not overlap with kernel text
Signed-off-by: Kees Cook <keescook@chromium.org>
Tested-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Tested-by: Michael Ellerman <mpe@ellerman.id.au>
Change-Id: Iff3b5f1ddb04acd99ccf9a9046c7797363962b2a
(cherry picked from commit f5509cc18daa7f82bcc553be70df2117c8eedc16)
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
This is the start of porting PAX_USERCOPY into the mainline kernel. This
is the first set of features, controlled by CONFIG_HARDENED_USERCOPY. The
work is based on code by PaX Team and Brad Spengler, and an earlier port
from Casey Schaufler. Additional non-slab page tests are from Rik van Riel.
This patch contains the logic for validating several conditions when
performing copy_to_user() and copy_from_user() on the kernel object
being copied to/from:
- address range doesn't wrap around
- address range isn't NULL or zero-allocated (with a non-zero copy size)
- if on the slab allocator:
- object size must be less than or equal to copy size (when check is
implemented in the allocator, which appear in subsequent patches)
- otherwise, object must not span page allocations (excepting Reserved
and CMA ranges)
- if on the stack
- object must not extend before/after the current process stack
- object must be contained by a valid stack frame (when there is
arch/build support for identifying stack frames)
- object must not overlap with kernel text
Signed-off-by: Kees Cook <keescook@chromium.org>
Tested-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Tested-by: Michael Ellerman <mpe@ellerman.id.au>
(cherry picked from commit f5509cc18daa7f82bcc553be70df2117c8eedc16)
Signed-off-by: Alex Shi <alex.shi@linaro.org>
Conflicts:
skip debug_page_ref and KCOV_INSTRUMENT in mm/Makefile
Alex Shi
Stephen Smalley
Daniel Rosenberg
Andrey Markovytch
Amit Pundir
Linux Build Service Account
David Howells
Runmin Wang
Dmitry Shmidt
John Johansen
Lorenzo Colitti
Miklos Szeredi
Paul Moore
Kees Cook
Linus Torvalds
Dan Carpenter
Jeff Vander Stoep