update sources to Ubuntu-4.15.0-33.36

[pve-kernel.git] / patches / kernel / 0010-UBUNTU-SAUCE-apparmor-fix-apparmor-mediating-locking.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: John Johansen <john.johansen@canonical.com>
Date: Fri, 27 Jul 2018 14:27:05 -0700
Subject: [PATCH] UBUNTU SAUCE: apparmor: fix apparmor mediating locking non-fs
 unix sockets

the apparmor policy language current does not allow expressing of the
locking permission for no-fs unix sockets. However the kernel is
enforcing mediation.

Add the AA_MAY_LOCK perm to the computed perm mask which will grant
permission for all current abi profiles, but still allow specifying
auditing of the operation if needed.

http://bugs.launchpad.net/bugs/1780227
Signed-off-by: John Johansen <john.johansen@canonical.com>
---
 security/apparmor/lib.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/security/apparmor/lib.c b/security/apparmor/lib.c
index 068a9f471f77..23f3d16d6b85 100644
--- a/security/apparmor/lib.c
+++ b/security/apparmor/lib.c
@@ -327,7 +327,7 @@ void aa_compute_perms(struct aa_dfa *dfa, unsigned int state,
 	/* for v5 perm mapping in the policydb, the other set is used
 	 * to extend the general perm set
 	 */
-	perms->allow |= map_other(dfa_other_allow(dfa, state));
+	perms->allow |= map_other(dfa_other_allow(dfa, state)) | AA_MAY_LOCK;
 	perms->audit |= map_other(dfa_other_audit(dfa, state));
 	perms->quiet |= map_other(dfa_other_quiet(dfa, state));
 //	perms->xindex = dfa_user_xindex(dfa, state);