[PATCH 4.2 15/54] act_mirred: clear sender cpu before sending to tx

From	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Newsgroups	linux.kernel
Subject	[PATCH 4.2 15/54] act_mirred: clear sender cpu before sending to tx
Date	2015-10-23 20:20 +0200
Message-ID	<qmP6B-Po-71@gated-at.bofh.it> (permalink)
References	<qmODw-8sm-7@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Show all headers | View raw

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

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

From: WANG Cong <xiyou.wangcong@gmail.com>

[ Upstream commit d40496a56430eac0d330378816954619899fe303 ]

Similar to commit c29390c6dfee ("xps: must clear sender_cpu before forwarding")
the skb->sender_cpu needs to be cleared when moving from Rx
Tx, otherwise kernel could crash.

Fixes: 2bd82484bb4c ("xps: fix xps for stacked devices")
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Cong Wang <cwang@twopensource.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/sched/act_mirred.c |    1 +
 1 file changed, 1 insertion(+)

--- a/net/sched/act_mirred.c
+++ b/net/sched/act_mirred.c
@@ -168,6 +168,7 @@ static int tcf_mirred(struct sk_buff *sk
 
 	skb2->skb_iif = skb->dev->ifindex;
 	skb2->dev = dev;
+	skb_sender_cpu_clear(skb2);
 	err = dev_queue_xmit(skb2);
 
 out:


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next | Find similar | Unroll thread

Thread

[PATCH 4.2 15/54] act_mirred: clear sender cpu before sending to tx Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2015-10-23 20:20 +0200

csiph-web