Re: [PATCH net v2] xfrm: fix policy lookup for ipv6 gre packets
From: Steffen Klassert <steffen.klassert@secunet.com>
Date: 2021-11-25 09:39:15
Also in:
stable
On Fri, Nov 19, 2021 at 06:20:16PM +0100, Nicolas Dichtel wrote:
From: Ghalem Boudour <redacted>
On egress side, xfrm lookup is called from __gre6_xmit() with the
fl6_gre_key field not initialized leading to policies selectors check
failure. Consequently, gre packets are sent without encryption.
On ingress side, INET6_PROTO_NOPOLICY was set, thus packets were not
checked against xfrm policies. Like for egress side, fl6_gre_key should be
correctly set, this is now done in decode_session6().
Fixes: c12b395a4664 ("gre: Support GRE over IPv6")
Cc: stable@vger.kernel.org
Signed-off-by: Ghalem Boudour <redacted>
Signed-off-by: Nicolas Dichtel <redacted>Patch applied, thanks a lot!