tree 5b5435397e994519b529c143c6960a35eb015308
parent 00b8e8ceece20db990b1fbb11f1d6051a276436b
author Jason Wang <jasowang@redhat.com> 1318129004 +0800
committer Greg Kroah-Hartman <gregkh@suse.de> 1318799694 -0700

ipv6: fix NULL dereference in udp6_ufo_fragment()

This patch fixes the issue caused by ef81bb40bf15f350fe865f31fa42f1082772a576
which is a backport of upstream 87c48fa3b4630905f98268dde838ee43626a060c. The
problem does not exist in upstream.

We do not check whether route is attached before trying to assign ip
identification through route dest which lead NULL pointer dereference. This
happens when host bridge transmit a packet from guest.

This patch changes ipv6_select_ident() to accept in6_addr as its paramter and
fix the issue by using the destination address in ipv6 header when no route is
attached.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>