From: Eric Dumazet <eduma...@google.com> tcp_v6_send_reset() expects to receive an skb with skb->cb[] layout as used in TCP stack. MD5 lookup uses tcp_v6_iif() and tcp_v6_sdif() and thus TCP_SKB_CB(skb)->header.h6
This patch probably fixes RST packets sent on behalf of a timewait md5 ipv6 socket. Before Florian patch, tcp_v6_restore_cb() was needed before jumping to no_tcp_socket label. Fixes: 271c3b9b7bda ("tcp: honour SO_BINDTODEVICE for TW_RST case too") Signed-off-by: Eric Dumazet <eduma...@google.com> Cc: Florian Westphal <f...@strlen.de> --- net/ipv6/tcp_ipv6.c | 1 - 1 file changed, 1 deletion(-) diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 6bb98c93edfe2ed2f16fe5229605f8108cfc7f9a..be11dc13aa705145a83177e17d23594e9416e11a 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -1590,7 +1590,6 @@ static int tcp_v6_rcv(struct sk_buff *skb) tcp_v6_timewait_ack(sk, skb); break; case TCP_TW_RST: - tcp_v6_restore_cb(skb); tcp_v6_send_reset(sk, skb); inet_twsk_deschedule_put(inet_twsk(sk)); goto discard_it;