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kernel_google_wahoo/kernel
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Li Jinyue 3a1525ec2f futex: Prevent overflow by strengthen input validation 
commit fbe0e839d1e22d88810f3ee3e2f1479be4c0aa4a upstream.

UBSAN reports signed integer overflow in kernel/futex.c:

 UBSAN: Undefined behaviour in kernel/futex.c:2041:18
 signed integer overflow:
 0 - -2147483648 cannot be represented in type 'int'

Add a sanity check to catch negative values of nr_wake and nr_requeue.

Bug: 76106267
Signed-off-by: Li Jinyue <lijinyue@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: peterz@infradead.org
Cc: dvhart@infradead.org
Link: https://lkml.kernel.org/r/1513242294-31786-1-git-send-email-lijinyue@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Change-Id: Ib103517371e2691bbfb795fa8f199f6dae35c12e
2018-05-10 18:59:16 +00:00
..
bpf
Merged linux-4.4.80 into android-msm-wahoo-4.4
2017-09-20 16:42:37 -07:00
configs
kconfig: tinyconfig: provide whole choice blocks to avoid warnings
2016-09-24 10:07:42 +02:00
debug
Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android
2017-01-09 12:01:35 +08:00
events
Merged linux-4.4.88 into android-msm-wahoo-4.4
2017-09-21 13:31:24 -07:00
gcov
gcov: support GCC 7.1
2017-09-02 07:06:51 +02:00
irq
Merged linux-4.4.80 into android-msm-wahoo-4.4
2017-09-20 16:42:37 -07:00
livepatch
livepatch: x86: fix relocation computation with kASLR
2015-11-11 17:36:04 +01:00
locking
Merged linux-4.4.88 into android-msm-wahoo-4.4
2017-09-21 13:31:24 -07:00
power
power: Add detailed suspend abort reason
2017-04-17 13:33:37 -07:00
printk
FROMLIST: Revert "pstore: Honor dmesg_restrict sysctl on dmesg dumps"
2017-09-29 13:15:43 -07:00
rcu
Merge branch 'android-msm-8998-4.4-common' into android-msm-wahoo-4.4
2017-04-07 12:27:45 -07:00
sched
Merge remote-tracking branch 'android-msm-wahoo-4.4-oc-dr1' into android-msm-wahoo-4.4-oc-mr1
2017-11-20 10:19:24 -08:00
time
Merged linux-4.4.80 into android-msm-wahoo-4.4
2017-09-20 16:42:37 -07:00
trace
Merged linux-4.4.88 into android-msm-wahoo-4.4
2017-09-21 13:31:24 -07:00
.gitignore
certs: add .gitignore to stop git nagging about x509_certificate_list
2015-10-21 15:18:35 +01:00
acct.c
…
async.c
…
audit_fsnotify.c
audit: clean simple fsnotify implementation
2015-08-06 16:14:53 -04:00
audit_tree.c
audit: audit_tree_match can be boolean
2015-11-04 08:23:51 -05:00
audit_watch.c
audit: Fix use after free in audit_remove_watch_rule()
2017-08-24 17:02:35 -07:00
audit.c
BACKPORT: audit: consistently record PIDs with task_tgid_nr()
2016-10-12 17:34:22 +05:30
audit.h
audit: audit_tree_match can be boolean
2015-11-04 08:23:51 -05:00
auditfilter.c
audit: fix comment block whitespace
2015-11-04 08:23:51 -05:00
auditsc.c
audit: fix a double fetch in audit_log_single_execve_arg()
2016-11-23 11:33:07 -08:00
backtracetest.c
…
bounds.c
…
capability.c
exec: Ensure mm->user_ns contains the execed files
2017-01-06 11:16:14 +01:00
cgroup_freezer.c
cgroup: fix handling of multi-destination migration from subtree_control enabling
2015-12-03 10:18:21 -05:00
cgroup_pids.c
cgroup_pids: don't account for the root cgroup
2015-12-03 10:18:21 -05:00
cgroup.c
Merged linux-4.4.70 into android-msm-wahoo-4.4
2017-09-20 15:50:18 -07:00
compat.c
…
configs.c
…
context_tracking.c
context_tracking: avoid irq_save/irq_restore on guest entry and exit
2015-11-10 12:06:23 +01:00
cpu_pm.c
lpm-levels: Do not disable non-sec interrupts in suspend
2016-03-22 11:07:22 -07:00
cpu.c
Merge branch 'android-msm-8998-4.4' into android-msm-8998-4.4-common
2017-05-15 09:15:58 -07:00
cpuset.c
Merged linux-4.4.88 into android-msm-wahoo-4.4
2017-09-21 13:31:24 -07:00
crash_dump.c
…
cred.c
cred: Reject inodes with invalid ids in set_create_file_as()
2016-09-15 08:27:49 +02:00
delayacct.c
…
dma.c
…
elfcore.c
…
exec_domain.c
…
exit.c
ANDROID: cpufreq: stats: add per task/uid/freq/cluster stats
2017-08-11 03:06:50 +00:00
extable.c
kernel/extable.c: mark core_kernel_text notrace
2017-07-21 07:44:56 +02:00
fork.c
Merged linux-4.4.80 into android-msm-wahoo-4.4
2017-09-20 16:42:37 -07:00
freezer.c
…
futex_compat.c
BACKPORT: ptrace: use fsuid, fsgid, effective creds for fs access checks
2016-07-07 16:30:43 -07:00
futex.c
futex: Prevent overflow by strengthen input validation
2018-05-10 18:59:16 +00:00
groups.c
…
hung_task.c
…
irq_work.c
treewide: Remove old email address
2015-11-23 09:44:58 +01:00
jump_label.c
Merge branch 'android-msm-8998-4.4' into android-msm-8998-4.4-common
2017-04-07 09:56:07 -07:00
kallsyms.c
…
kcmp.c
BACKPORT: ptrace: use fsuid, fsgid, effective creds for fs access checks
2016-07-07 16:30:43 -07:00
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
…
Kconfig.preempt
…
kcov.c
UPSTREAM: kernel: add kcov code coverage
2016-11-02 10:21:27 -07:00
kexec_core.c
kexec: use file name as the output message prefix
2015-11-06 17:50:42 -08:00
kexec_file.c
kexec: fix double-free when failing to relocate the purgatory
2016-09-24 10:07:36 +02:00
kexec_internal.h
kexec: split kexec_file syscall code to kexec_file.c
2015-09-10 13:29:01 -07:00
kexec.c
kexec: use file name as the output message prefix
2015-11-06 17:50:42 -08:00
kmod.c
kmod: don't run async usermode helper as a child of kworker thread
2015-10-23 17:55:10 +09:00
kprobes.c
tracing/kprobes: Enforce kprobes teardown after testing
2017-05-25 14:30:17 +02:00
ksysfs.c
kexec: split kexec_load syscall from kexec core code
2015-09-10 13:29:01 -07:00
kthread.c
Merged linux-4.4.70 into android-msm-wahoo-4.4
2017-09-20 15:50:18 -07:00
latencytop.c
…
Makefile
UPSTREAM: kernel: add kcov code coverage
2016-11-02 10:21:27 -07:00
membarrier.c
Fix: Disable sys_membarrier when nohz_full is enabled
2017-03-12 06:37:26 +01:00
memremap.c
mm: fix devm_memremap_pages crash, use mem_hotplug_{begin, done}
2017-01-19 20:17:18 +01:00
module_signing.c
KEYS: Merge the type-specific data with the payload data
2015-10-21 15:18:36 +01:00
module-internal.h
…
module.c
Merge branch 'v4.4-16.09-android-tmp' into lsk-v4.4-16.09-android
2016-12-16 13:52:17 -08:00
notifier.c
Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-09-01 08:40:25 -07:00
nsproxy.c
…
padata.c
padata: free correct variable
2017-05-20 14:27:02 +02:00
panic.c
Merged linux-4.4.80 into android-msm-wahoo-4.4
2017-09-20 16:42:37 -07:00
params.c
Merge tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
2015-11-09 15:53:39 -08:00
pid_namespace.c
pid_ns: Sleep in TASK_INTERRUPTIBLE in zap_pid_ns_processes
2017-05-25 14:30:11 +02:00
pid.c
pids: make task_tgid_nr_ns() safe
2017-08-24 17:02:36 -07:00
profile.c
mm: rename alloc_pages_exact_node() to __alloc_pages_node()
2015-09-08 15:35:28 -07:00
ptrace.c
ptrace: Properly initialize ptracer_cred on fork
2017-06-14 13:16:20 +02:00
range.c
…
reboot.c
kexec: split kexec_load syscall from kexec core code
2015-09-10 13:29:01 -07:00
relay.c
kernel/relay.c: use kvfree() in relay_free_page_array()
2015-06-30 19:44:59 -07:00
resource.c
Merged linux-4.4.80 into android-msm-wahoo-4.4
2017-09-20 16:42:37 -07:00
seccomp.c
seccomp: always propagate NO_NEW_PRIVS on tsync
2016-03-03 15:07:25 -08:00
signal.c
signal: protect SIGNAL_UNKILLABLE from unintentional clearing.
2017-08-11 09:08:59 -07:00
smp.c
smp: Do not wake up all idle CPUs
2016-09-24 10:59:58 -07:00
smpboot.c
Merge android-msm-8998-4.4-common into android-msm-muskie-4.4
2017-01-11 22:31:42 -08:00
smpboot.h
…
softirq.c
softirq, sched: reduce softirq conflicts with RT
2017-09-14 17:27:12 +00:00
stacktrace.c
…
stop_machine.c
kernel: remove stop_machine() Kconfig dependency
2015-12-12 10:15:34 -08:00
sys_ni.c
mm: mlock: add new mlock system call
2015-11-05 19:34:48 -08:00
sys.c
Merge android-msm-8998-4.4-common into android-msm-muskie-4.4
2017-01-11 22:31:42 -08:00
sysctl_binary.c
Merge remote-tracking branch 'msm-4.4/tmp-2bf7955' into msm-4.4
2016-07-22 16:45:32 -07:00
sysctl.c
Merged linux-4.4.70 into android-msm-wahoo-4.4
2017-09-20 15:50:18 -07:00
task_work.c
task_work: remove fifo ordering guarantee
2015-09-05 13:46:58 -07:00
taskstats.c
…
test_kprobes.c
…
torture.c
torture: Consolidate cond_resched_rcu_qs() into stutter_wait()
2015-10-06 11:25:01 -07:00
tracepoint.c
tracepoint: Give priority to probes of tracepoints
2015-10-25 21:33:54 -04:00
tsacct.c
…
uid16.c
…
up.c
…
user_namespace.c
capabilities: ambient capabilities
2015-09-04 16:54:41 -07:00
user-return-notifier.c
…
user.c
…
utsname_sysctl.c
…
utsname.c
…
watchdog.c
Merge branch 'android-4.4@8e53f7c' into branch 'msm-4.4.c4'
2017-04-27 10:10:25 -07:00
workqueue_internal.h
…
workqueue.c
Merged linux-4.4.88 into android-msm-wahoo-4.4
2017-09-21 13:31:24 -07:00