linux-kernel - [PATCH 3.10 113/268] apparmor: exec should not be returning ENOENT when it denies

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Message-Id: <1497897167-14556-114-git-send-email-w@1wt.eu>
Date:   Mon, 19 Jun 2017 20:30:12 +0200
From:   Willy Tarreau <w@....eu>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        linux@...ck-us.net
Cc:     John Johansen <john.johansen@...onical.com>,
        Jiri Slaby <jslaby@...e.cz>, Willy Tarreau <w@....eu>
Subject: [PATCH 3.10 113/268] apparmor: exec should not be returning ENOENT when it denies

From: John Johansen <john.johansen@...onical.com>

commit 9049a7922124d843a2cd26a02b1d00a17596ec0c upstream.

The current behavior is confusing as it causes exec failures to report
the executable is missing instead of identifying that apparmor
caused the failure.

Signed-off-by: John Johansen <john.johansen@...onical.com>
Acked-by: Seth Arnold <seth.arnold@...onical.com>
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
Signed-off-by: Willy Tarreau <w@....eu>
---
 security/apparmor/domain.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/security/apparmor/domain.c b/security/apparmor/domain.c
index 859abda..8405a04 100644
--- a/security/apparmor/domain.c
+++ b/security/apparmor/domain.c
@@ -441,7 +441,7 @@ int apparmor_bprm_set_creds(struct linux_binprm *bprm)
 				new_profile = aa_get_profile(ns->unconfined);
 				info = "ux fallback";
 			} else {
-				error = -ENOENT;
+				error = -EACCES;
 				info = "profile not found";
 			}
 		}
-- 
2.8.0.rc2.1.gbe9624a