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authorArnaldo Carvalho de Melo <acme@redhat.com>2021-03-29 10:39:10 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2021-03-29 10:39:10 -0300
commitb0a752d43b1566451332bcb5b52b9694dfe7896c (patch)
tree1d5ea27a0ef6e74e2b9692e6c02d8d48710d1d36 /net/ipv6/tcp_ipv6.c
parent50fa3a531e8e4b58550171fb159d0aa578c6b52d (diff)
parenta5e13c6df0e41702d2b2c77c8ad41677ebb065b3 (diff)
Merge remote-tracking branch 'torvalds/master' into perf/core
To pick up fixes sent via perf/urgent and in the BPF tools/ directories. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'net/ipv6/tcp_ipv6.c')
-rw-r--r--net/ipv6/tcp_ipv6.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index bd44ded7e50c..d0f007741e8e 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1175,6 +1175,11 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
if (!ipv6_unicast_destination(skb))
goto drop;
+ if (ipv6_addr_v4mapped(&ipv6_hdr(skb)->saddr)) {
+ __IP6_INC_STATS(sock_net(sk), NULL, IPSTATS_MIB_INHDRERRORS);
+ return 0;
+ }
+
return tcp_conn_request(&tcp6_request_sock_ops,
&tcp_request_sock_ipv6_ops, sk, skb);