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(parent: 94131e1) | patch
kernel/groups.c: fix integer overflow in groups_search
authorJerome Marchand <jmarchan@redhat.com>
Thu, 9 Sep 2010 23:37:59 +0000 (16:37 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 10 Sep 2010 01:57:24 +0000 (18:57 -0700)
commit1c24de60e50fb19b94d94225458da17c720f0729
treea225907a1b341f629037805f086add137e176f4atree | snapshot (tar.gz zip)
parent94131e174fedd9f3f9bb148cee4be12f2d46d68ecommit | diff
kernel/groups.c: fix integer overflow in groups_search

gid_t is a unsigned int.  If group_info contains a gid greater than
MAX_INT, groups_search() function may look on the wrong side of the search
tree.

This solves some unfair "permission denied" problems.

Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
kernel/groups.c diff | blob | blame | history