This is a note to let you know that I've just added the patch titled
tcp: force a dst refcount when prequeue packet
to the 3.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
tcp-force-a-dst-refcount-when-prequeue-packet.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 456b0df13849266ca7336cb712e18ee22858f9af Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@xxxxxxxxxx>
Date: Wed, 24 Apr 2013 18:34:55 -0700
Subject: tcp: force a dst refcount when prequeue packet
From: Eric Dumazet <edumazet@xxxxxxxxxx>
[ Upstream commit 093162553c33e9479283e107b4431378271c735d ]
Before escaping RCU protected section and adding packet into
prequeue, make sure the dst is refcounted.
Reported-by: Mike Galbraith <bitbucket@xxxxxxxxx>
Signed-off-by: Eric Dumazet <edumazet@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
include/net/tcp.h | 1 +
1 file changed, 1 insertion(+)
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -948,6 +948,7 @@ static inline int tcp_prequeue(struct so
if (sysctl_tcp_low_latency || !tp->ucopy.task)
return 0;
+ skb_dst_force(skb);
__skb_queue_tail(&tp->ucopy.prequeue, skb);
tp->ucopy.memory += skb->truesize;
if (tp->ucopy.memory > sk->sk_rcvbuf) {
Patches currently in stable-queue which might be from edumazet@xxxxxxxxxx are
queue-3.4/ipv6-do-not-clear-pinet6-field.patch
queue-3.4/tcp-force-a-dst-refcount-when-prequeue-packet.patch
queue-3.4/macvlan-fix-passthru-mode-race-between-dev-removal-and-rx-path.patch
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