Alexey Dobriyan b77d70db65 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>

2018-04-11 10:28:34 -07:00

..

array.c

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

2018-04-11 10:28:33 -07:00

base.c

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

2018-04-11 10:28:34 -07:00

cmdline.c

proc: faster /proc/cmdline

2018-04-11 10:28:34 -07:00

consoles.c

fs/proc/consoles.c: use seq_putc() in show_console_dev()

2018-02-06 18:32:44 -08:00

cpuinfo.c

x86 / CPU: Always show current CPU frequency in /proc/cpuinfo

2017-11-15 19:46:50 +01:00

devices.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

fd.c

proc: use %u for pid printing and slightly less stack

2018-02-06 18:32:43 -08:00

fd.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

generic.c

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

2018-04-11 10:28:34 -07:00

inode.c

proc: move "struct proc_dir_entry" into kmem cache

2018-04-11 10:28:34 -07:00

internal.h

proc: move "struct proc_dir_entry" into kmem cache

2018-04-11 10:28:34 -07:00

interrupts.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

Kconfig

…

kcore.c

vfs/proc/kcore, x86/mm/kcore: Fix SMAP fault when dumping vsyscall user page

2018-02-13 09:15:58 +01:00

kmsg.c

vfs: do bulk POLL* -> EPOLL* replacement

2018-02-11 14:34:03 -08:00

loadavg.c

pid: replace pid bitmap implementation with IDR API

2017-11-17 16:10:03 -08:00

Makefile

proc: : uninline name_to_int()

2017-11-17 16:10:00 -08:00

meminfo.c

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

2018-04-11 10:28:33 -07:00

namespaces.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

nommu.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

page.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

proc_net.c

proc: move "struct proc_dir_entry" into kmem cache

2018-04-11 10:28:34 -07:00

proc_sysctl.c

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

2018-04-11 10:28:33 -07:00

proc_tty.c

TTY/Serial patches for 4.15-rc1

2017-11-13 21:05:31 -08:00

root.c

proc: register filesystem last

2018-04-11 10:28:34 -07:00

self.c

fs/proc: use __ro_after_init

2018-02-06 18:32:43 -08:00

softirqs.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

stat.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

task_mmu.c

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

2018-04-11 10:28:33 -07:00

task_nommu.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

thread_self.c

fs/proc: use __ro_after_init

2018-02-06 18:32:43 -08:00

uptime.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

util.c

proc: use do-while in name_to_int()

2017-11-17 16:10:00 -08:00

version.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

vmcore.c

fs/proc/vmcore.c: simpler /proc/vmcore cleanup

2018-02-06 18:32:43 -08:00