From: Alexander Ovechkin ovov@yandex-team.ru
stable inclusion from stable-5.10.53 commit b61d8814c4779f7810c96fa1d1d9e68fbd9d91df bugzilla: 175574 https://gitee.com/openeuler/kernel/issues/I4DTUX
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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commit 43b90bfad34bcb81b8a5bc7dc650800f4be1787e upstream.
commit e05a90ec9e16 ("net: reflect mark on tcp syn ack packets") fixed IPv4 only.
This part is for the IPv6 side.
Fixes: e05a90ec9e16 ("net: reflect mark on tcp syn ack packets") Signed-off-by: Alexander Ovechkin ovov@yandex-team.ru Acked-by: Dmitry Yakunin zeil@yandex-team.ru Reviewed-by: Eric Dumazet edumazet@google.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Chen Jun chenjun102@huawei.com Acked-by: Weilong Chen chenweilong@huawei.com Signed-off-by: Chen Jun chenjun102@huawei.com --- net/ipv6/tcp_ipv6.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 3f9bb6dd1f98..1348d6bf04b3 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -540,7 +540,7 @@ static int tcp_v6_send_synack(const struct sock *sk, struct dst_entry *dst, opt = ireq->ipv6_opt; if (!opt) opt = rcu_dereference(np->opt); - err = ip6_xmit(sk, skb, fl6, sk->sk_mark, opt, + err = ip6_xmit(sk, skb, fl6, skb->mark ? : sk->sk_mark, opt, tclass, sk->sk_priority); rcu_read_unlock(); err = net_xmit_eval(err);