netdev - [PATCH net 0/2] net: do not modify the shared tunnel info when PMTU triggers an ICMP reply

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Date:   Thu, 25 Mar 2021 16:35:31 +0100
From:   Antoine Tenart <atenart@...nel.org>
To:     davem@...emloft.net, kuba@...nel.org
Cc:     Antoine Tenart <atenart@...nel.org>, echaudro@...hat.com,
        sbrivio@...hat.com, netdev@...r.kernel.org
Subject: [PATCH net 0/2] net: do not modify the shared tunnel info when PMTU triggers an ICMP reply

Hi,

The series fixes an issue were a shared ip_tunnel_info is modified when
PMTU triggers an ICMP reply in vxlan and geneve, making following
packets in that flow to have a wrong destination address if the flow
isn't updated. A detailled information is given in each of the two
commits.

This was tested manually with OVS and I ran the PTMU selftests with
kmemleak enabled (all OK, none was skipped).

Thanks!
Antoine

Antoine Tenart (2):
  vxlan: do not modify the shared tunnel info when PMTU triggers an ICMP
    reply
  geneve: do not modify the shared tunnel info when PMTU triggers an
    ICMP reply

 drivers/net/geneve.c | 24 ++++++++++++++++++++----
 drivers/net/vxlan.c  | 18 ++++++++++++++----
 2 files changed, 34 insertions(+), 8 deletions(-)

-- 
2.30.2