[Xenial/Yakkety/Zesty] [SRU] [PATCH] UBUNTU: SAUCE: apparmor: fix link auditing failure due to, uninitialized var

[John Johansen]

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/1664912
Signed-off-by: John Johansen <john.johansen at canonical.com>
---
 security/apparmor/file.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/security/apparmor/file.c b/security/apparmor/file.c
index ae0b7c7..6a0411c 100644
--- a/security/apparmor/file.c
+++ b/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;
-- 
2.9.3