proc: do proper range check on readdir offset
authorLinus Torvalds <torvalds@linux-foundation.org>
Mon, 18 Apr 2011 17:36:54 +0000 (10:36 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Mon, 18 Apr 2011 17:36:54 +0000 (10:36 -0700)
commitd8bdc59f215e62098bc5b4256fd9928bf27053a1
tree2f6e233afaf1b7f970e2f0ef0786dff4596dbd0a
parentc78193e9c7bcbf25b8237ad0dec82f805c4ea69b
proc: do proper range check on readdir offset

Rather than pass in some random truncated offset to the pid-related
functions, check that the offset is in range up-front.

This is just cleanup, the previous commit fixed the real problem.

Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
fs/proc/base.c