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