Commit 55bdb77a authored Jul 17, 2018 by Eric Biggers Committed by Greg Kroah-Hartman Sep 26, 2018

security: check for kstrdup() failure in lsm_append()



[ Upstream commit 87ea58433208d17295e200d56be5e2a4fe4ce7d6 ]

lsm_append() should return -ENOMEM if memory allocation failed.

Fixes: d69dece5 ("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>

parent bdf948ea

security/security.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -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))