[3.5.y.z extended stable] Patch "audit: fix info leak in AUDIT_GET requests" has been added to staging queue

Luis Henriques luis.henriques at canonical.com
Fri Nov 29 14:03:24 UTC 2013

This is a note to let you know that I have just added a patch titled

    audit: fix info leak in AUDIT_GET requests

to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree 
which can be found at:


If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.5.y.z tree, see



>From 7e600bc46ef7ca532bfa4da4209c71da5d65c42b Mon Sep 17 00:00:00 2001
From: Mathias Krause <minipli at googlemail.com>
Date: Mon, 30 Sep 2013 22:04:24 +0200
Subject: audit: fix info leak in AUDIT_GET requests

commit 64fbff9ae0a0a843365d922e0057fc785f23f0e3 upstream.

We leak 4 bytes of kernel stack in response to an AUDIT_GET request as
we miss to initialize the mask member of status_set. Fix that.

Cc: Al Viro <viro at zeniv.linux.org.uk>
Cc: Eric Paris <eparis at redhat.com>
Signed-off-by: Mathias Krause <minipli at googlemail.com>
Signed-off-by: Richard Guy Briggs <rgb at redhat.com>
Signed-off-by: Eric Paris <eparis at redhat.com>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
 kernel/audit.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/audit.c b/kernel/audit.c
index f02d3fc..39b0438 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -684,6 +684,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)

 	switch (msg_type) {
 	case AUDIT_GET:
+		status_set.mask		 = 0;
 		status_set.enabled	 = audit_enabled;
 		status_set.failure	 = audit_failure;
 		status_set.pid		 = audit_pid;

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