From: Hillf Danton <dhillf@xxxxxxxxx> Subject: 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@xxxxxxxxx> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx> Cc: Sasha Levin <sasha.levin@xxxxxxxxxx> Cc: Hugh Dickins <hughd@xxxxxxxxxx> Cc: Mel Gorman <mgorman@xxxxxxx> Cc: Dave Jones <davej@xxxxxxxxxx> Cc: <stable@xxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/mempolicy.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff -puN mm/mempolicy.c~mm-mempolicyc-fix-wrong-sp_node-insertion mm/mempolicy.c --- a/mm/mempolicy.c~mm-mempolicyc-fix-wrong-sp_node-insertion +++ a/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; _ -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html