Alexey Dobriyan f14405e529

proc: reject "." and ".." as filenames ...

Various subsystems can create files and directories in /proc with names
directly controlled by userspace.

Which means "/", "." and ".." are no-no.

"/" split is already taken care of, do the other 2 prohibited names.

Link: http://lkml.kernel.org/r/20180310001223.GB12443@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: Florian Westphal <fw@strlen.de>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Panchajanya1999 <rsk52959@gmail.com>
Signed-off-by: Panchajanya1999 <panchajanya@azure-dev.live>
(cherry picked from commit 175721be2e505649ee481a9cd2bf14b228d12f2b)
Signed-off-by: Adithya R <gh0strider.2k18.reborn@gmail.com>
Signed-off-by: Forenche <prahul2003@gmail.com>

2022-04-02 13:09:15 +05:30

..

array.c

proc: replace seq_printf by seq_put_smth to speed up /proc/pid/status

2022-04-02 13:09:10 +05:30

base.c

proc: do mmput ASAP for /proc/*/map_files

2022-04-02 13:09:15 +05:30

cmdline.c

fs: proc: Faster /proc/cmdline

2022-04-02 13:02:52 +05:30

consoles.c

…

cpuinfo.c

…

devices.c

…

fd.c

…

fd.h

…

generic.c

proc: reject "." and ".." as filenames

2022-04-02 13:09:15 +05:30

inode.c

proc: account "struct pde_opener"

2022-04-02 13:09:08 +05:30

internal.h

proc: move "struct pde_opener" to kmem cache

2022-04-02 13:09:08 +05:30

interrupts.c

…

Kconfig

…

kcore.c

…

kmsg.c

…

loadavg.c

BACKPORT: sched: loadavg: consolidate LOAD_INT, LOAD_FRAC, CALC_LOAD

2019-03-21 16:19:55 -07:00

Makefile

…

meminfo.c

proc: add seq_put_decimal_ull_width to speed up /proc/pid/smaps

2022-04-02 13:09:10 +05:30

namespaces.c

…

nommu.c

…

page.c

fs/proc/page.c: don't access uninitialized memmaps in fs/proc/page.c

2019-10-29 09:17:37 +01:00

proc_net.c

…

proc_sysctl.c

fs/proc/proc_sysctl.c: remove redundant link check in proc_sys_link_fill_cache()

2022-04-02 13:09:11 +05:30

proc_tty.c

…

root.c

proc: register filesystem last

2022-04-02 13:09:11 +05:30

self.c

fs/proc: use __ro_after_init

2022-04-02 13:09:08 +05:30

softirqs.c

…

stat.c

…

task_mmu.c

proc: replace seq_printf on seq_putc to speed up /proc/pid/smaps

2022-04-02 13:09:10 +05:30

task_nommu.c

…

thread_self.c

fs/proc: use __ro_after_init

2022-04-02 13:09:08 +05:30

uid.c

…

uptime.c

…

version.c

…

vmcore.c

vmalloc: fix remap_vmalloc_range() bounds checks

2020-05-02 17:24:21 +02:00