From: KOSAKI Motohiro <kosaki.motoh...@jp.fujitsu.com>
From: Hillf Danton <dhi...@gmail.com>
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 <dhi...@gmail.com>
Signed-off-by: KOSAKI Motohiro <kosaki.motoh...@jp.fujitsu.com>
---
mm/mempolicy.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 31d2663..868d08f 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -2391,8 +2391,8 @@ static int shared_policy_replace(struct shared_policy
*sp, unsigned long start,
*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;
--
1.7.1
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