From 87ea58433208d17295e200d56be5e2a4fe4ce7d6 Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Tue, 17 Jul 2018 10:36:04 -0700 Subject: security: check for kstrdup() failure in lsm_append() lsm_append() should return -ENOMEM if memory allocation failed. Fixes: d69dece5f5b6 ("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(+) (limited to 'security/security.c') diff --git a/security/security.c b/security/security.c index 6e149d0ffe33..b49ee810371b 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)) -- cgit v1.2.3-59-g8ed1b