[apparmor] [PATCH 01/32] apparmor: fix auditing of domain transition failures due to incomplete policy

[John Johansen]

When policy specifies a transition to a profile that is not currently
loaded, it result in exec being denied.  However the failure is not being
audited correctly because the audit code is treating this as an allowed
permission and thus not reporting it.

Signed-off-by: John Johansen <john.johansen at canonical.com>
Acked-By: Steve Beattie <sbeattie at ubuntu.com>
---
 security/apparmor/domain.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/security/apparmor/domain.c b/security/apparmor/domain.c
index 60f0c76..168c601 100644
--- a/security/apparmor/domain.c
+++ b/security/apparmor/domain.c
@@ -443,6 +443,8 @@ int apparmor_bprm_set_creds(struct linux_binprm *bprm)
 			} else {
 				error = -ENOENT;
 				info = "profile not found";
+				/* remove MAY_EXEC to audit as failure */
+				perms.allow &= ~MAY_EXEC;
 			}
 		}
 	} else if (COMPLAIN_MODE(profile)) {
-- 
1.7.10.4