sctp: Do not reset the packet during sctp_packet_config().
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>
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@ -92,7 +92,6 @@ struct sctp_packet *sctp_packet_config(struct sctp_packet *packet,
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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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