Commit 00ea1cee authored Feb 18, 2017 by Willem de Bruijn Committed by David S. Miller Feb 18, 2017

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: ec5e3b0a ("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>

parent 2763f92f

net/ipv6/ip6_output.c

+4 −2

Original line number	Diff line number	Diff line
		@@ -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;

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