[PATCH net 0/3] pull request: ovpn for net 2026-02-12

[Antonio Quartulli <antonio@openvpn.net>]

Hi netdev-team,

In this batch you can three fixes:

1) ensure that sk_user_data is set before configuring socket callbacks.
This way we avoid dropping early packets received by the CB when the
ovpn data is not yet configured.

2) fix use-after-free in ovpn_net_xmit by not blindly assuming that the
first skb segment will always be valid. It may actually be released by
skb_share_check.

3) properly increase TX stats, by counting bytes of all segments that
have been properly processed, instead of just counting the first segment
only.

Please pull or let me know of any issue!

Thanks a lot.
Antonio,

The following changes since commit bf9cf80cab81e39701861a42877a28295ade266f:

  net: macb: Fix tx/rx malfunction after phy link down and up (2026-02-11 13:13:41 +0100)

are available in the Git repository at:

  https://github.com/OpenVPN/ovpn-net-next.git tags/ovpn-net-20260212

for you to fetch changes up to b660b13d4c6379ca6360f24aaef8c5807fefd237:

  ovpn: fix VPN TX bytes counting (2026-02-12 15:28:59 +0100)

----------------------------------------------------------------
This batch includes the following fixes:
* set sk_user_data before installing callbacks, to avoid dropping early
  packets
* fix use-after-free in ovpn_net_xmit when accessing shared skbs that
  got released
* fix TX bytes stats by adding-up every positively processed GSO
  segment

----------------------------------------------------------------
Ralf Lici (3):
      ovpn: set sk_user_data before overriding callbacks
      ovpn: fix possible use-after-free in ovpn_net_xmit
      ovpn: fix VPN TX bytes counting

 drivers/net/ovpn/io.c     | 55 +++++++++++++++++++++++++++++------------------
 drivers/net/ovpn/socket.c | 39 +++++++++++++++++----------------
 drivers/net/ovpn/tcp.c    |  9 ++++++--
 drivers/net/ovpn/udp.c    |  1 +
 4 files changed, 63 insertions(+), 41 deletions(-)