From: Jakub Kicinski kuba@kernel.org
[ Upstream commit 42dcfd850e514b229d616a53dec06d0f2533217c ]
Commit c6af0c227a22 ("ip: support SO_MARK cmsg") added propagation of SO_MARK from cmsg to skb->mark. For IPv4 and raw sockets the mark also affects route lookup, but in case of IPv6 the flow info is initialized before cmsg is parsed.
Fixes: c6af0c227a22 ("ip: support SO_MARK cmsg") Reported-and-tested-by: Xintong Hu huxintong@fb.com Signed-off-by: Jakub Kicinski kuba@kernel.org Reviewed-by: David Ahern dsahern@kernel.org Reviewed-by: Willem de Bruijn willemb@google.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- net/ipv6/udp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 0f57c682afdd8..818fc99756256 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -1363,7 +1363,6 @@ do_udp_sendmsg: if (!fl6.flowi6_oif) fl6.flowi6_oif = np->sticky_pktinfo.ipi6_ifindex;
- fl6.flowi6_mark = ipc6.sockc.mark; fl6.flowi6_uid = sk->sk_uid;
if (msg->msg_controllen) { @@ -1399,6 +1398,7 @@ do_udp_sendmsg: ipc6.opt = opt;
fl6.flowi6_proto = sk->sk_protocol; + fl6.flowi6_mark = ipc6.sockc.mark; fl6.daddr = *daddr; if (ipv6_addr_any(&fl6.saddr) && !ipv6_addr_any(&np->saddr)) fl6.saddr = np->saddr;