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| author | Hillf Danton <dhillf@gmail.com> | 2013-03-08 12:43:28 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-03-08 15:05:34 -0800 |
| commit | 5ca3957510b9fc2a14d3647db518014842f9a2b4 (patch) | |
| tree | 6a4427c2e58796ced91b079733e94431b0e7c8b7 /mm/mempolicy.c | |
| parent | 88b9e456b1649722673ffa147914299799dc9041 (diff) | |
| download | linux-5ca3957510b9fc2a14d3647db518014842f9a2b4.tar.gz linux-5ca3957510b9fc2a14d3647db518014842f9a2b4.tar.bz2 linux-5ca3957510b9fc2a14d3647db518014842f9a2b4.zip | |
mm/mempolicy.c: fix wrong sp_node insertion
n->end is accessed in sp_insert(). Thus it should be update
before calling sp_insert(). This mistake may make kernel panic.
Signed-off-by: Hillf Danton <dhillf@gmail.com>
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Sasha Levin <sasha.levin@oracle.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Dave Jones <davej@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/mempolicy.c')
| -rw-r--r-- | mm/mempolicy.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 31d26637b658..868d08f49f07 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -2391,8 +2391,8 @@ restart: *mpol_new = *n->policy; atomic_set(&mpol_new->refcnt, 1); sp_node_init(n_new, n->end, end, mpol_new); - sp_insert(sp, n_new); n->end = start; + sp_insert(sp, n_new); n_new = NULL; mpol_new = NULL; break; |