proc: do proper range check on readdir offset
commit968b9098cac22e2a05f27a334067c9bb75121bd9
authorLinus Torvalds <torvalds@linux-foundation.org>
Mon, 18 Apr 2011 17:36:54 +0000 (18 10:36 -0700)
committerGreg Kroah-Hartman <gregkh@suse.de>
Fri, 22 Apr 2011 15:50:03 +0000 (22 08:50 -0700)
treeabbf5bf4da5ebd834e2dc7317816b98fde581c19
parent56aaabf6651ebf8f59995b1a5166df598c08411b
proc: do proper range check on readdir offset

commit d8bdc59f215e62098bc5b4256fd9928bf27053a1 upstream.

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.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
fs/proc/base.c