tree e2b91d7b5e1c46edac87d37c7ecd2b218585c5cd
parent 79e99bdd60b484af9afe0147e85a13e66d5c1cdb
author Yossi Kuperman <yossiku@mellanox.com> 1504269750 +0200
committer David S. Miller <davem@davemloft.net> 1504286974 -0700

udp: fix secpath leak

After commit dce4551cb2ad ("udp: preserve head state for IP_CMSG_PASSSEC")
we preserve the secpath for the whole skb lifecycle, but we also
end up leaking a reference to it.

We must clear the head state on skb reception, if secpath is
present.

Fixes: dce4551cb2ad ("udp: preserve head state for IP_CMSG_PASSSEC")
Signed-off-by: Yossi Kuperman <yossiku@mellanox.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>