Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.18 157/235] security: check for kstrdup() failure in lsm_append() | Date | Mon, 24 Sep 2018 13:52:23 +0200 |
| |
4.18-stable review patch. If anyone has any objections, please let me know.
------------------
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> Signed-off-by: Greg Kroah-Hartman <gregkh@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))
| |