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Kees Cook 1c9fec470b waitid(): Avoid unbalanced user_access_end() on access_ok() error 
As pointed out by Linus and David, the earlier waitid() fix resulted in
a (currently harmless) unbalanced user_access_end() call.  This fixes it
to just directly return EFAULT on access_ok() failure.

Fixes: 96ca579a1ecc ("waitid(): Add missing access_ok() checks")
Acked-by: David Daney <david.daney@cavium.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-10-20 15:32:54 -04:00
..
bpf
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
2017-10-09 10:39:52 -07:00
cgroup
cgroup: Reinit cgroup_taskset structure before cgroup_migrate_execute() returns
2017-09-22 08:14:45 -07:00
configs
ANDROID: binder: add hwbinder,vndbinder to BINDER_DEVICES.
2017-08-22 18:43:23 -07:00
debug
sched/headers: Prepare for new header dependencies before moving code to <linux/sched/debug.h>
2017-03-02 08:42:34 +01:00
events
perf/core: Fix cgroup time when scheduling descendants
2017-10-10 10:06:55 +02:00
gcov
gcov: support GCC 7.1
2017-05-12 15:57:15 -07:00
irq
genirq/cpuhotplug: Enforce affinity setting on startup of managed irqs
2017-10-09 13:26:48 +02:00
livepatch
livepatch: unpatch all klp_objects if klp_module_coming fails
2017-10-11 15:38:46 +02:00
locking
locking/lockdep: Fix stacktrace mess
2017-10-10 10:04:28 +02:00
power
PM / s2idle: Invoke the ->wake() platform callback earlier
2017-09-29 01:26:13 +02:00
printk
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk
2017-09-07 21:00:52 -07:00
rcu
doc: Fix various RCU docbook comment-header problems
2017-10-19 22:26:11 -04:00
sched
membarrier: Provide register expedited private command
2017-10-19 22:13:40 -04:00
time
drivers/pps: aesthetic tweaks to PPS-related content
2017-09-08 18:26:51 -07:00
trace
Two updates.
2017-10-04 08:34:01 -07:00
.gitignore
…
acct.c
fs: make the buf argument to __kernel_write a void pointer
2017-09-04 19:05:15 -04:00
async.c
async: Adjust system_state checks
2017-05-23 10:01:37 +02:00
audit_fsnotify.c
Merge branch 'fsnotify' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2017-05-03 11:05:15 -07:00
audit_tree.c
Merge branch 'fsnotify' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2017-05-03 11:05:15 -07:00
audit_watch.c
audit/stable-4.13 PR 20170816
2017-08-16 16:48:34 -07:00
audit.c
audit: update the function comments
2017-09-05 09:46:59 -04:00
audit.h
ipc: mqueue: Replace timespec with timespec64
2017-09-03 20:21:24 -04:00
auditfilter.c
audit: kernel generated netlink traffic should have a portid of 0
2017-05-02 10:16:05 -04:00
auditsc.c
Merge branch 'work.ipc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-09-14 17:37:26 -07:00
backtracetest.c
…
bounds.c
…
capability.c
capability: export has_capability
2017-01-12 07:01:56 -07:00
compat.c
semtimedop(): move compat to native
2017-07-15 20:46:47 -04:00
configs.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
context_tracking.c
…
cpu_pm.c
PM / CPU: replace raw_notifier with atomic_notifier
2017-07-31 13:09:49 +02:00
cpu.c
Merge branch 'core-watchdog-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-10-06 08:36:41 -07:00
crash_core.c
kdump: protect vmcoreinfo data under the crash memory
2017-07-12 16:26:00 -07:00
crash_dump.c
…
cred.c
doc: ReSTify credentials.txt
2017-05-18 10:30:19 -06:00
delayacct.c
sched/headers: Prepare to move cputime functionality from <linux/sched.h> into <linux/sched/cputime.h>
2017-03-02 08:42:39 +01:00
dma.c
…
elfcore.c
…
exec_domain.c
…
exit.c
waitid(): Avoid unbalanced user_access_end() on access_ok() error
2017-10-20 15:32:54 -04:00
extable.c
extable: Enable RCU if it is not watching in kernel_text_address()
2017-09-23 16:50:20 -04:00
fork.c
kmemleak: clear stale pointers from task stacks
2017-10-13 16:18:33 -07:00
freezer.c
freezer, oom: check TIF_MEMDIE on the correct task
2016-07-28 16:07:41 -07:00
futex_compat.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
futex.c
futex: Fix pi_state->owner serialization
2017-09-25 16:37:11 +02:00
groups.c
kernel/groups.c: use sort library function
2017-07-10 16:32:34 -07:00
hung_task.c
kernel/hung_task.c: defer showing held locks
2017-05-08 17:15:10 -07:00
irq_work.c
…
jump_label.c
jump_label: Provide hotplug context variants
2017-08-10 12:28:59 +02:00
kallsyms.c
kernel/kallsyms.c: replace all_var with IS_ENABLED(CONFIG_KALLSYMS_ALL)
2017-07-10 16:32:34 -07:00
kcmp.c
kernel/kcmp.c: drop branch leftover typo
2017-10-03 17:54:25 -07:00
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
locking/mutex: Allow MUTEX_SPIN_ON_OWNER when DEBUG_MUTEXES
2016-10-25 11:31:51 +02:00
Kconfig.preempt
…
kcov.c
kcov: support compat processes
2017-09-08 18:26:51 -07:00
kexec_core.c
x86/mm, kexec: Allow kexec to be used with SME
2017-07-18 11:38:04 +02:00
kexec_file.c
kexec_file: adjust declaration of kexec_purgatory
2017-07-12 16:26:02 -07:00
kexec_internal.h
kexec_file: adjust declaration of kexec_purgatory
2017-07-12 16:26:02 -07:00
kexec.c
kdump: protect vmcoreinfo data under the crash memory
2017-07-12 16:26:00 -07:00
kmod.c
kmod: move #ifdef CONFIG_MODULES wrapper to Makefile
2017-09-08 18:26:51 -07:00
kprobes.c
kprobes: Ensure that jprobe probepoints are at function entry
2017-07-08 11:05:35 +02:00
ksysfs.c
kexec: move vmcoreinfo out of the kernel's .bss section
2017-07-12 16:25:59 -07:00
kthread.c
kernel/kthread.c: kthread_worker: don't hog the cpu
2017-08-31 16:33:15 -07:00
latencytop.c
sched/headers: Prepare to move sched_info_on() and force_schedstat_enabled() from <linux/sched.h> to <linux/sched/stat.h>
2017-03-02 08:42:39 +01:00
Makefile
kmod: move #ifdef CONFIG_MODULES wrapper to Makefile
2017-09-08 18:26:51 -07:00
memremap.c
memremap: add scheduling point to devm_memremap_pages
2017-10-03 17:54:25 -07:00
module_signing.c
…
module-internal.h
…
module.c
module: fix ddebug_remove_module()
2017-07-25 15:08:32 +02:00
notifier.c
kernel/notifier.c: simplify expression
2017-02-24 17:46:56 -08:00
nsproxy.c
perf: Add PERF_RECORD_NAMESPACES to include namespaces related info
2017-03-13 15:57:41 -03:00
padata.c
padata: Avoid nested calls to cpus_read_lock() in pcrypt_init_padata()
2017-05-26 10:10:37 +02:00
panic.c
locking/refcounts, x86/asm: Implement fast refcount overflow protection
2017-08-17 10:40:26 +02:00
params.c
kernel/params.c: improve STANDARD_PARAM_DEF readability
2017-10-03 17:54:26 -07:00
pid_namespace.c
userns,pidns: Verify the userns for new pid namespaces
2017-07-20 07:43:58 -05:00
pid.c
pids: make task_tgid_nr_ns() safe
2017-08-21 12:47:31 -07:00
profile.c
sched/headers: Prepare to move sched_info_on() and force_schedstat_enabled() from <linux/sched.h> to <linux/sched/stat.h>
2017-03-02 08:42:39 +01:00
ptrace.c
signal: Remove kernel interal si_code magic
2017-07-24 14:30:28 -05:00
range.c
…
reboot.c
…
relay.c
Merge branch 'work.splice' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-05-02 11:38:06 -07:00
resource.c
…
seccomp.c
seccomp: make function __get_seccomp_filter static
2017-10-10 11:45:29 -07:00
signal.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2017-09-11 18:34:47 -07:00
smp.c
treewide: make "nr_cpu_ids" unsigned
2017-09-08 18:26:48 -07:00
smpboot.c
watchdog/core, powerpc: Lock cpus across reconfiguration
2017-10-04 10:53:54 +02:00
smpboot.h
…
softirq.c
sched/core: Remove 'task' parameter and rename tsk_restore_flags() to current_restore_flags()
2017-04-11 09:06:32 +02:00
stacktrace.c
stacktrace/x86: add function for detecting reliable stack traces
2017-03-08 09:18:02 +01:00
stop_machine.c
stop_machine: Provide stop_machine_cpuslocked()
2017-05-26 10:10:36 +02:00
sys_ni.c
move aio compat to fs/aio.c
2016-12-22 22:58:37 -05:00
sys.c
prctl: Allow local CAP_SYS_ADMIN changing exe_file
2017-07-20 07:46:07 -05:00
sysctl_binary.c
fs: fix kernel_write prototype
2017-09-04 19:05:15 -04:00
sysctl.c
Merge branch 'core-watchdog-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-10-06 08:36:41 -07:00
task_work.c
task_work: Replace spin_unlock_wait() with lock/unlock pair
2017-07-25 10:08:58 -07:00
taskstats.c
taskstats: add e/u/stime for TGID command
2017-05-08 17:15:12 -07:00
test_kprobes.c
…
torture.c
torture: Fix typo suppressing CPU-hotplug statistics
2017-07-25 13:04:45 -07:00
tracepoint.c
sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task.h>
2017-03-02 08:42:35 +01:00
tsacct.c
sched/headers: Prepare to move cputime functionality from <linux/sched.h> into <linux/sched/cputime.h>
2017-03-02 08:42:39 +01:00
ucount.c
ucount: Remove the atomicity from ucount->count
2017-03-06 15:26:37 -06:00
uid16.c
sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>
2017-03-02 08:42:31 +01:00
umh.c
kmod: split out umh code into its own file
2017-09-08 18:26:50 -07:00
up.c
smp: Avoid using two cache lines for struct call_single_data
2017-08-29 15:14:38 +02:00
user_namespace.c
userns,pidns: Verify the userns for new pid namespaces
2017-07-20 07:43:58 -05:00
user-return-notifier.c
…
user.c
sched/headers: Prepare for new header dependencies before moving code to <linux/sched/user.h>
2017-03-02 08:42:29 +01:00
utsname_sysctl.c
sched/headers: Remove <linux/rwsem.h> from <linux/sched.h>
2017-03-03 01:45:36 +01:00
utsname.c
sched/headers: Prepare to move the task_lock()/unlock() APIs to <linux/sched/task.h>
2017-03-02 08:42:38 +01:00
watchdog_hld.c
watchdog/hardlockup/perf: Fix spelling mistake: "permanetely" -> "permanently"
2017-09-28 12:24:54 +02:00
watchdog.c
watchdog/core: Put softlockup_threads_initialized under ifdef guard
2017-10-04 11:30:50 +02:00
workqueue_internal.h
…
workqueue.c
Merge branch 'for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
2017-09-06 21:59:31 -07:00