Hi,
please add
> From f15ca723c1ebe6c1a06bc95fda6b62cd87b44559 Mon Sep 17 00:00:00 2001
> From: Nicolas Dichtel <nicolas.dichtel@xxxxxxxxx>
> Date: Thu, 25 Jan 2018 19:03:03 +0100
> Subject: net: don't call update_pmtu unconditionally
>
> Some dst_ops (e.g. md_dst_ops)) doesn't set this handler. It may result to:
> "BUG: unable to handle kernel NULL pointer dereference at (null)"
>
> Let's add a helper to check if update_pmtu is available before calling it.
>
> Fixes: 52a589d51f10 ("geneve: update skb dst pmtu on tx path")
> Fixes: a93bf0ff4490 ("vxlan: update skb dst pmtu on tx path")
> CC: Roman Kapl <code@xxxxxxxx>
> CC: Xin Long <lucien.xin@xxxxxxxxx>
> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@xxxxxxxxx>
> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
to 4.14.x.
This fixes NULL derefs caused by a93bf0ff4490 ("vxlan: update
skb dst pmtu on tx path"), which was backported to 4.14.24.
--
Regards,
Thomas Deutschmann / Gentoo Linux Developer
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