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android_kernel_samsung_msm8976/kernel
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Thiago Rafael Becker 079cf0277b kernel: make groups_sort calling a responsibility group_info allocators 
commit bdcf0a423ea1c40bbb40e7ee483b50fc8aa3d758 upstream.

In testing, we found that nfsd threads may call set_groups in parallel
for the same entry cached in auth.unix.gid, racing in the call of
groups_sort, corrupting the groups for that entry and leading to
permission denials for the client.

This patch:
 - Make groups_sort globally visible.
 - Move the call to groups_sort to the modifiers of group_info
 - Remove the call to groups_sort from set_groups

Link: http://lkml.kernel.org/r/20171211151420.18655-1-thiago.becker@gmail.com
Signed-off-by: Thiago Rafael Becker <thiago.becker@gmail.com>
Reviewed-by: Matthew Wilcox <mawilcox@microsoft.com>
Reviewed-by: NeilBrown <neilb@suse.com>
Acked-by: "J. Bruce Fields" <bfields@fieldses.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
[bwh: Backported to 3.16: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
 		2019-07-27 21:46:18 +02:00
..
cpu idle: add a check for need_resched() after rcu_idle_enter 2016-10-03 20:28:27 -07:00
debug This is the 3.10.73 stable release 2015-04-24 18:14:57 -07:00
events perf/core: Fix group {cpu,task} validation 2019-07-27 21:45:02 +02:00
gcov
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irq This is the 3.10.99 stable release 2017-04-18 17:17:46 +02:00
locking Import latest Samsung release 2017-04-18 03:43:52 +02:00
power PM / sleep: fix device reference leak in test_suspend 2019-07-27 21:42:48 +02:00
rcu rcu: Don't disable CPU hotplug during OOM notifiers 2016-01-06 23:11:06 -08:00
sched sched/topology: Fix overlapping sched_group_mask 2019-07-27 21:45:20 +02:00
time alarmtimer: Rate limit periodic intervals 2019-07-27 21:44:49 +02:00
trace tracing: Fix trace_pipe behavior for instance traces 2019-07-27 21:45:52 +02:00
.gitignore
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Kconfig.freezer
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Kconfig.hz
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Kconfig.locks Import latest Samsung release 2017-04-18 03:43:52 +02:00
Kconfig.preempt
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Makefile UPSTREAM: KEYS: Separate the kernel signature checking keyring from module signing 2016-05-18 14:36:10 +05:30
acct.c
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async.c
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audit.c audit: Partially remove Samsung changes 2018-02-06 13:12:28 +01:00
audit.h Import latest Samsung release 2017-04-18 03:43:52 +02:00
audit_tree.c audit: keep inode pinned 2014-11-21 09:22:52 -08:00
audit_watch.c audit: Fix use after free in audit_remove_watch_rule() 2019-07-27 21:45:01 +02:00
auditfilter.c
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auditsc.c Import latest Samsung release 2017-04-18 03:43:52 +02:00
backtracetest.c
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bounds.c
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capability.c
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cgroup.c cgroup: prefer %pK to %p 2016-12-06 09:24:09 -08:00
cgroup_freezer.c
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compat.c
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configs.c
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context_tracking.c
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cpu.c cpu: send KOBJ_ONLINE event when enabling cpus 2017-07-24 01:09:04 -07:00
cpu_pm.c cpu_pm: Add level to the cluster pm notification 2015-01-07 22:31:58 -08:00
cpuset.c cpuset: PF_SPREAD_PAGE and PF_SPREAD_SLAB should be atomic flags 2019-07-27 21:44:59 +02:00
crash_dump.c
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cred.c
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delayacct.c
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dma.c
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elfcore.c
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exec_domain.c ANDROID: exec_domains: Disable request_module() call for personalities 2016-05-18 14:34:40 +05:30
exit.c kernel: Only expose su when daemon is running 2017-05-15 14:43:52 +00:00
extable.c kernel/extable.c: mark core_kernel_text notrace 2019-07-27 21:44:25 +02:00
fork.c mm: migrate: prevent racy access to tlb_flush_pending 2019-07-27 21:45:21 +02:00
freezer.c This is the 3.10.67 stable release 2015-04-24 18:04:40 -07:00
futex.c futex: Add missing error handling to FUTEX_REQUEUE_PI 2019-07-27 21:44:02 +02:00
futex_compat.c ptrace: use fsuid, fsgid, effective creds for fs access checks 2016-02-25 11:57:47 -08:00
groups.c kernel: make groups_sort calling a responsibility group_info allocators 2019-07-27 21:46:18 +02:00
hrtimer.c time: Remove CONFIG_TIMER_STATS 2017-04-22 23:02:59 +02:00
hung_task.c
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irq_work.c irq_work: Remove BUG_ON in irq_work_run() 2016-01-07 00:42:12 -08:00
itimer.c
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jump_label.c
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kallsyms.c Import latest Samsung release 2017-04-18 03:43:52 +02:00
kcmp.c ptrace: use fsuid, fsgid, effective creds for fs access checks 2016-02-25 11:57:47 -08:00
kexec.c
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kmod.c
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kprobes.c
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ksysfs.c
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kthread.c kthread: Fix the race condition when kthread is parked 2015-06-04 17:43:41 -07:00
latencytop.c
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modsign_pubkey.c
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module-internal.h UPSTREAM: KEYS: Separate the kernel signature checking keyring from module signing 2016-05-18 14:36:10 +05:30
module.c module: Invalidate signatures on force-loaded modules 2019-07-27 21:42:00 +02:00
module_signing.c UPSTREAM: KEYS: Separate the kernel signature checking keyring from module signing 2016-05-18 14:36:10 +05:30
notifier.c
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nsproxy.c
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padata.c padata: avoid race in reordering 2019-07-27 21:44:05 +02:00
panic.c printk: do cond_resched() between lines while outputting to consoles 2019-07-27 21:41:46 +02:00
params.c kernel/params.c: align add_sysfs_param documentation with code 2019-07-27 21:45:35 +02:00
pid.c BACKPORT: FROMLIST: pids: make task_tgid_nr_ns() safe 2018-05-26 00:39:33 +02:00
pid_namespace.c
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posix-cpu-timers.c
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posix-timers.c posix-timers: Fix stack info leak in timer_create() 2014-11-14 08:48:00 -08:00
printk.c printk: use rcuidle console tracepoint 2019-07-27 21:44:09 +02:00
profile.c
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ptrace.c ptrace: change __ptrace_unlink() to clear ->ptrace under ->siglock 2019-07-27 21:45:46 +02:00
range.c
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relay.c
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res_counter.c
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resource.c This is the 3.10.99 stable release 2017-04-18 17:17:46 +02:00
seccomp.c UPSTREAM: seccomp: cap SECCOMP_RET_ERRNO data to MAX_ERRNO 2016-05-18 14:36:06 +05:30
signal.c signal: Only reschedule timers on signals timers have sent 2019-07-27 21:44:51 +02:00
smp.c Import latest Samsung release 2017-04-18 03:43:52 +02:00
smpboot.c smpboot: use kmemleak_not_leak for smpboot_thread_data 2015-05-11 17:07:29 +05:30
smpboot.h
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softirq.c Import latest Samsung release 2017-04-18 03:43:52 +02:00
stacktrace.c
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stop_machine.c
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sys.c Import latest Samsung release 2017-04-18 03:43:52 +02:00
sys_ni.c seccomp: add "seccomp" syscall 2015-03-19 14:52:50 -07:00
sysctl.c sched/sysctl: Check user input value of sysctl_sched_time_avg 2019-07-27 21:45:34 +02:00
sysctl_binary.c
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system_certificates.S UPSTREAM: KEYS: Separate the kernel signature checking keyring from module signing 2016-05-18 14:36:10 +05:30
system_keyring.c UPSTREAM: KEYS: Separate the kernel signature checking keyring from module signing 2016-05-18 14:36:10 +05:30
task_work.c
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taskstats.c
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test_kprobes.c
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time.c time: settimeofday: Validate the values of tv from user 2015-01-29 17:40:56 -08:00
timeconst.bc
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timer.c timers: Use proper base migration in add_timer_on() 2019-07-27 21:42:23 +02:00
tracepoint.c
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tsacct.c
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uid16.c kernel: make groups_sort calling a responsibility group_info allocators 2019-07-27 21:46:18 +02:00
up.c
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user-return-notifier.c
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user.c userns: Add a knob to disable setgroups on a per user namespace basis 2015-01-08 09:58:16 -08:00
user_namespace.c UPSTREAM: capabilities: ambient capabilities 2018-02-06 13:12:16 +01:00
utsname.c
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utsname_sysctl.c
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watchdog.c
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workqueue.c workqueue: trigger WARN if queue_delayed_work() is called with NULL @wq 2019-07-27 21:45:23 +02:00
workqueue_internal.h
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