From: Eric Biggers ebiggers@google.com
[ Upstream commit 87ea58433208d17295e200d56be5e2a4fe4ce7d6 ]
lsm_append() should return -ENOMEM if memory allocation failed.
Fixes: d69dece5f5b6 ("LSM: Add /sys/kernel/security/lsm") Signed-off-by: Eric Biggers ebiggers@google.com Signed-off-by: James Morris james.morris@microsoft.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com --- security/security.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/security/security.c b/security/security.c index 4bf0f571b4ef..95a1a0f52880 100644 --- a/security/security.c +++ b/security/security.c @@ -111,6 +111,8 @@ 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))