linux-kernel - [30/45] tc: Fix unitialized kernel memory leak

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Date:	Tue, 30 Mar 2010 15:48:50 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Eric Dumazet <eric.dumazet@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	Greg Kroah-Hartman <gregkh@...e.de>
Subject: [30/45] tc: Fix unitialized kernel memory leak

2.6.27-stable review patch.  If anyone has any objections, please let us know.

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

From: Eric Dumazet <eric.dumazet@...il.com>

commit 16ebb5e0b36ceadc8186f71d68b0c4fa4b6e781b upstream.

Three bytes of uninitialized kernel memory are currently leaked to user

Signed-off-by: Eric Dumazet <eric.dumazet@...il.com>
Reviewed-by: Jiri Pirko <jpirko@...hat.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 net/sched/sch_api.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -1453,6 +1453,8 @@ static int tc_fill_tclass(struct sk_buff
 	nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*tcm), flags);
 	tcm = NLMSG_DATA(nlh);
 	tcm->tcm_family = AF_UNSPEC;
+	tcm->tcm__pad1 = 0;
+	tcm->tcm__pad2 = 0;
 	tcm->tcm_ifindex = qdisc_dev(q)->ifindex;
 	tcm->tcm_parent = q->handle;
 	tcm->tcm_handle = q->handle;


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