Re: Linux 2.6.14.1

[Andrew Morton]

Greg KH <gregkh@xxxxxxx> wrote:
>
> We (the -stable team) are announcing the release of the 2.6.14.1 kernel.

We need the fix for the net-drops-zero-length-udp-messages bug which broke
bind and traceroute.



Begin forwarded message:

Date: Fri, 4 Nov 2005 12:04:53 -0800
From: Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>
To: git-commits-head@xxxxxxxxxxxxxxx
Subject: [NET]: Fix zero-size datagram reception


tree ee282f7fd6e465d7b031d64b9ed7c03233ea94cf
parent c2da8acaf488b8651edfb04ebf3ab089f3a7830f
author Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Wed, 02 Nov 2005 18:55:00 +1100
committer Arnaldo Carvalho de Melo <acme@xxxxxxxxxxxx> Thu, 03 Nov 2005 02:25:04 -0200

[NET]: Fix zero-size datagram reception

The recent rewrite of skb_copy_datagram_iovec broke the reception of
zero-size datagrams.  This patch fixes it.

Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxxxx>

 net/core/datagram.c |    4 ++++
 1 files changed, 4 insertions(+)

diff --git a/net/core/datagram.c b/net/core/datagram.c
index 81987df..d219435 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -213,6 +213,10 @@ int skb_copy_datagram_iovec(const struct
 {
 	int i, err, fraglen, end = 0;
 	struct sk_buff *next = skb_shinfo(skb)->frag_list;
+
+	if (!len)
+		return 0;
+
 next_skb:
 	fraglen = skb_headlen(skb);
 	i = -1;
-
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