From 24e1881bafadb6d89e1da646e9d517366af3567b Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Tue, 17 Jul 2018 10:36:04 -0700 Subject: [PATCH] security: check for kstrdup() failure in lsm_append() lsm_append() should return -ENOMEM if memory allocation failed. Fixes: 5be0c792b6f7 ("LSM: Add /sys/kernel/security/lsm") Signed-off-by: Eric Biggers Signed-off-by: James Morris --- security/security.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/security/security.c b/security/security.c index 6e149d0ffe333..b49ee810371be 100644 --- a/security/security.c +++ b/security/security.c @@ -118,6 +118,8 @@ static int lsm_append(char *new, char **result) if (*result == NULL) { *result = kstrdup(new, GFP_KERNEL); + if (*result == NULL) + return -ENOMEM; } else { /* Check if it is the last registered name */ if (match_last_lsm(*result, new)) -- 2.39.5