linux-kernel - [PATCH 4.14 110/164] apparmor: fix leak of null profile name if profile allocation fails

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 12 Dec 2017 13:44:50 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Seth Arnold <seth.arnold@...onical.com>,
        John Johansen <john.johansen@...onical.com>,
        Sasha Levin <alexander.levin@...izon.com>
Subject: [PATCH 4.14 110/164] apparmor: fix leak of null profile name if profile allocation fails

4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

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


[ Upstream commit 4633307e5ed6128975595df43f796a10c41d11c1 ]

Fixes: d07881d2edb0 ("apparmor: move new_null_profile to after profile lookup fns()")
Reported-by: Seth Arnold <seth.arnold@...onical.com>
Signed-off-by: John Johansen <john.johansen@...onical.com>
Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 security/apparmor/policy.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/security/apparmor/policy.c
+++ b/security/apparmor/policy.c
@@ -502,7 +502,7 @@ struct aa_profile *aa_new_null_profile(s
 {
 	struct aa_profile *p, *profile;
 	const char *bname;
-	char *name;
+	char *name = NULL;
 
 	AA_BUG(!parent);
 
@@ -562,6 +562,7 @@ out:
 	return profile;
 
 fail:
+	kfree(name);
 	aa_free_profile(profile);
 	return NULL;
 }