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| author | Willem de Bruijn <willemb@google.com> | 2017-02-18 19:00:45 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-02-18 22:55:13 -0500 |
| commit | 00ea1ceebe0d9f2dc1cc2b7bd575a00100c27869 (patch) | |
| tree | 520f6e8a62d858a0d52ac02812bb20156b563d87 /net/ipv6/ip6_output.c | |
| parent | 2763f92f858f7c4c3198335c0542726eaed07ba3 (diff) | |
| download | linux-stable-00ea1ceebe0d9f2dc1cc2b7bd575a00100c27869.tar.gz linux-stable-00ea1ceebe0d9f2dc1cc2b7bd575a00100c27869.tar.bz2 linux-stable-00ea1ceebe0d9f2dc1cc2b7bd575a00100c27869.zip | |
ipv6: release dst on error in ip6_dst_lookup_tail
If ip6_dst_lookup_tail has acquired a dst and fails the IPv4-mapped
check, release the dst before returning an error.
Fixes: ec5e3b0a1d41 ("ipv6: Inhibit IPv4-mapped src address on the wire.")
Signed-off-by: Willem de Bruijn <willemb@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/ip6_output.c')
| -rw-r--r-- | net/ipv6/ip6_output.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index e164684456df..7cebee58e55b 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -1022,8 +1022,10 @@ static int ip6_dst_lookup_tail(struct net *net, const struct sock *sk, } #endif if (ipv6_addr_v4mapped(&fl6->saddr) && - !(ipv6_addr_v4mapped(&fl6->daddr) || ipv6_addr_any(&fl6->daddr))) - return -EAFNOSUPPORT; + !(ipv6_addr_v4mapped(&fl6->daddr) || ipv6_addr_any(&fl6->daddr))) { + err = -EAFNOSUPPORT; + goto out_err_release; + } return 0; |