UBUNTU: SAUCE: apparmor: fix link auditing failure due to, uninitialized var

The lperms struct is uninitialized for use with auditing if there is
an early failure due to a path name error. This can result in incorrect
logging or in the extreme case apparmor killing the task with a signal
which results in the failure in the referenced bug.

BugLink: http://bugs.launchpad.net/bugs/1664912Signed-off-by: John Johansen <john.johansen@canonical.com>
Acked-by: Stefan Bader <stefan.bader@canonical.com>
Acked-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>

security/apparmor/file.c

@@ -374,7 +374,7 @@ static int profile_path_link(struct aa_profile *profile,
 			     struct path_cond *cond)
 {
 	const char *lname, *tname = NULL;
-	struct aa_perms lperms, perms;
+	struct aa_perms lperms = {}, perms;
 	const char *info = NULL;
 	u32 request = AA_MAY_LINK;
 	unsigned int state;