Hello netdev-team,

this is a pull request of 4 patches for net/main, it super-seeds the
"can 2026-01-14" pull request. The dev refcount leak in patch #3 is
fixed.

The first 3 patches are by Oliver Hartkopp and revert the approach to
instantly reject unsupported CAN frames introduced in
net-next-for-v6.19 and replace it by placing the needed data into the
CAN specific ml_priv.

The last patch is by Tetsuo Handa and fixes a J1939 refcount leak for
j1939_session in session deactivation upon receiving the second RTS.

regards,
Marc

---

The following changes since commit 3879cffd9d07aa0377c4b8835c4f64b4fb24ac78:

  net/sched: sch_qfq: do not free existing class in qfq_change_class() (2026-01-13 19:36:56 -0800)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can.git tags/linux-can-fixes-for-6.19-20260115

for you to fetch changes up to 1809c82aa073a11b7d335ae932d81ce51a588a4a:

  net: can: j1939: j1939_xtp_rx_rts_session_active(): deactivate session upon receiving the second rts (2026-01-15 09:52:39 +0100)

----------------------------------------------------------------
linux-can-fixes-for-6.19-20260115

----------------------------------------------------------------
Marc Kleine-Budde (1):
      Merge patch series "can: raw: better approach to instantly reject unsupported CAN frames"

Oliver Hartkopp (3):
      Revert "can: raw: instantly reject unsupported CAN frames"
      can: propagate CAN device capabilities via ml_priv
      can: raw: instantly reject disabled CAN frames

Tetsuo Handa (1):
      net: can: j1939: j1939_xtp_rx_rts_session_active(): deactivate session upon receiving the second rts

 drivers/net/can/Kconfig       |  7 ++++--
 drivers/net/can/Makefile      |  2 +-
 drivers/net/can/dev/Makefile  |  5 +++--
 drivers/net/can/dev/dev.c     | 27 +++++++++++++++++++++++
 drivers/net/can/dev/netlink.c |  1 +
 drivers/net/can/vcan.c        | 15 +++++++++++++
 drivers/net/can/vxcan.c       | 15 +++++++++++++
 include/linux/can/can-ml.h    | 24 ++++++++++++++++++++
 include/linux/can/dev.h       |  8 +------
 net/can/j1939/transport.c     | 10 ++++++++-
 net/can/raw.c                 | 51 +++++++++----------------------------------
 11 files changed, 111 insertions(+), 54 deletions(-)