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android_kernel_oneplus_msm8998/fs/proc
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Danilo Krummrich ea8a1f4a9a fs/proc/proc_sysctl.c: fix potential page fault while unregistering sysctl table 
[ Upstream commit a0b0d1c345d0317efe594df268feb5ccc99f651e ]

proc_sys_link_fill_cache() does not take currently unregistering sysctl
tables into account, which might result into a page fault in
sysctl_follow_link() - add a check to fix it.

This bug has been present since v3.4.

Link: http://lkml.kernel.org/r/20180228013506.4915-1-danilokrummrich@dk-develop.de
Fixes: 0e47c99d7f ("sysctl: Replace root_list with links between sysctl_table_sets")
Signed-off-by: Danilo Krummrich <danilokrummrich@dk-develop.de>
Acked-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: "Luis R . Rodriguez" <mcgrof@kernel.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-30 07:49:07 +02:00
..
array.c ptrace: use fsuid, fsgid, effective creds for fs access checks 2016-02-25 12:01:16 -08:00
base.c proc: fix /proc/*/map_files lookup 2018-05-30 07:48:56 +02:00
cmdline.c
consoles.c
cpuinfo.c
devices.c
fd.c proc: actually make proc_fd_permission() thread-friendly 2015-11-06 17:50:42 -08:00
fd.h
generic.c proc: Fix unbalanced hard link numbers 2017-05-25 14:30:10 +02:00
inode.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2015-07-03 15:20:57 -07:00
internal.h proc: Allow creating permanently empty directories that serve as mount points 2015-07-01 10:36:41 -05:00
interrupts.c
Kconfig fs, proc: add help for CONFIG_PROC_CHILDREN 2015-07-17 16:39:52 -07:00
kcore.c x86/fpu, sched: Introduce CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT and use it on x86 2015-07-18 03:42:51 +02:00
kmsg.c
loadavg.c
Makefile proc: Implement /proc/thread-self to point at the directory of the current thread 2014-08-04 10:07:11 -07:00
meminfo.c proc: meminfo: estimate available memory more conservatively 2018-05-26 08:48:54 +02:00
namespaces.c ptrace: use fsuid, fsgid, effective creds for fs access checks 2016-02-25 12:01:16 -08:00
nommu.c vfs: add seq_file_path() helper 2015-06-23 18:01:07 -04:00
page.c proc: add cond_resched to /proc/kpage* read/write loop 2015-09-10 13:29:01 -07:00
proc_net.c VFS: normal filesystems (and lustre): d_inode() annotations 2015-04-15 15:06:57 -04:00
proc_sysctl.c fs/proc/proc_sysctl.c: fix potential page fault while unregistering sysctl table 2018-05-30 07:49:07 +02:00
proc_tty.c tty fix oops when rmmod 8250 2017-12-20 10:05:00 +01:00
root.c proc: prevent stacking filesystems on top 2016-06-24 10:18:20 -07:00
self.c don't pass nameidata to ->follow_link() 2015-05-10 22:20:15 -04:00
softirqs.c
stat.c genirq: Prevent proc race against freeing of irq descriptors 2014-12-13 13:33:07 +01:00
task_mmu.c fs/proc: Stop trying to report thread stacks 2018-04-08 11:52:00 +02:00
task_nommu.c fs/proc: Stop trying to report thread stacks 2018-04-08 11:52:00 +02:00
thread_self.c don't pass nameidata to ->follow_link() 2015-05-10 22:20:15 -04:00
uptime.c
version.c
vmcore.c vmcore: fix PT_NOTE n_namesz, n_descsz overflow issue 2015-02-17 14:34:52 -08:00