Commit 6600e9f6 authored by John Johansen's avatar John Johansen
Browse files

apparmor: add missing failure check in compute_xmatch_perms 



Add check for failure to allocate the permission table.

Fixes: caa9f579 ("apparmor: isolate policy backwards compatibility to its own file")
Signed-off-by: default avatarJohn Johansen <john.johansen@canonical.com>
parent 000518bc

security/apparmor/policy_compat.c

+2 −0
Original line number Diff line number Diff line
@@ -180,6 +180,8 @@ static struct aa_perms *compute_xmatch_perms(struct aa_dfa *xmatch) 
	state_count = xmatch->tables[YYTD_ID_BASE]->td_lolen;

	/* DFAs are restricted from having a state_count of less than 2 */

	perms = kvcalloc(state_count, sizeof(struct aa_perms), GFP_KERNEL);

	if (!perms)

		return NULL;



	/* zero init so skip the trap state (state == 0) */

	for (state = 1; state < state_count; state++)