Vasiliy Kulikov 1d1221f375 proc: restrict access to /proc/PID/io ...

/proc/PID/io may be used for gathering private information.  E.g.  for
openssh and vsftpd daemons wchars/rchars may be used to learn the
precise password length.  Restrict it to processes being able to ptrace
the target process.

ptrace_may_access() is needed to prevent keeping open file descriptor of
"io" file, executing setuid binary and gathering io information of the
setuid'ed process.

Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2011-06-28 09:39:11 -07:00

..

array.c

proc: constify status array

2011-05-26 17:12:36 -07:00

base.c

proc: restrict access to /proc/PID/io

2011-06-28 09:39:11 -07:00

cmdline.c

…

consoles.c

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cpuinfo.c

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devices.c

…

generic.c

airo: correct proc entry creation interfaces

2011-05-16 14:25:28 -04:00

inode.c

ns: proc files for namespace naming policy.

2011-05-10 14:31:44 -07:00

internal.h

Merge git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/linux-2.6-nsfd

2011-05-25 18:10:16 -07:00

interrupts.c

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Kconfig

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kcore.c

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kmsg.c

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loadavg.c

…

Makefile

ns: proc files for namespace naming policy.

2011-05-10 14:31:44 -07:00

meminfo.c

…

mmu.c

…

namespaces.c

proc: Fix Oops on stat of /proc/<zombie pid>/ns/net

2011-06-15 14:35:29 -07:00

nommu.c

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page.c

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proc_devtree.c

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proc_net.c

…

proc_sysctl.c

proc_sys_permission() is OK in RCU mode

2011-06-20 10:45:25 -04:00

proc_tty.c

…

root.c

fix leak in proc_set_super()

2011-06-12 17:45:28 -04:00

softirqs.c

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stat.c

proc/stat: use defined macro KMALLOC_MAX_SIZE

2011-05-26 17:12:37 -07:00

task_mmu.c

proc: fix pagemap_read() error case

2011-05-26 17:12:37 -07:00

task_nommu.c

report errors in /proc/*/*map* sanely

2011-03-23 16:36:50 -04:00

uptime.c

…

version.c

…

vmcore.c

fs/proc/vmcore.c: add hook to read_from_oldmem() to check for non-ram pages

2011-05-26 17:12:37 -07:00