From 4bdab43323b459900578b200a4b8cf9713ac8fab Mon Sep 17 00:00:00 2001
From: Vlad Yasevich <vladislav.yasevich@hp.com>
Date: Wed, 15 Sep 2010 10:00:26 -0400
Subject: sctp: Do not reset the packet during sctp_packet_config().
From: Vlad Yasevich <vladislav.yasevich@hp.com>
commit 4bdab43323b459900578b200a4b8cf9713ac8fab upstream.
sctp_packet_config() is called when getting the packet ready
for appending of chunks. The function should not touch the
current state, since it's possible to ping-pong between two
transports when sending, and that can result packet corruption
followed by skb overlfow crash.
Reported-by: Thomas Dreibholz <dreibh@iem.uni-due.de>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
net/sctp/output.c | 1 -
1 file changed, 1 deletion(-)
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -92,7 +92,6 @@ struct sctp_packet *sctp_packet_config(s
SCTP_DEBUG_PRINTK("%s: packet:%p vtag:0x%x\n", __func__,
packet, vtag);
- sctp_packet_reset(packet);
packet->vtag = vtag;
if (ecn_capable && sctp_packet_empty(packet)) {