4.18-stable review patch. If anyone has any objections, please let me know.
------------------ From: Eric Biggers <ebigg...@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 <ebigg...@google.com> Signed-off-by: James Morris <james.mor...@microsoft.com> Signed-off-by: Sasha Levin <alexander.le...@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org> --- security/security.c | 2 ++ 1 file changed, 2 insertions(+) --- a/security/security.c +++ b/security/security.c @@ -118,6 +118,8 @@ static int lsm_append(char *new, char ** 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))