[PATCH net 0/16] pull-request: can 2026-09-29

Hello netdev-team,

this is a pull request of 16 patches for net/main.

The first patch is by Vincent Mailhol and drops CAN-XL frames on non
CAN-XL devices.

A patch by zjamg restores the skb header initialization lost during
the v7.0 release cycle.

Oliver Hartkopp contributes 3 patches for the CAN net layer, the first
one fixes the net namespace integration for BCM, ISOTP and the CAN RAW
protocols. The second one converts the unreliable ARPHRD_CAN type
check to the robust can_get_ml_priv(). The third one fixes the unique
skb identifier regression under RPS, introduced in the v7.0 release
cycle, which causes lost packets.

A patch by Joshua Crofts adds a missing
pm_runtime_dont_use_autosuspend() to the m_can_pci driver.

Maximilian Zimmermann's patch for the xilinx CAN driver adds the
setting the ESI and BSR flags in the receive path if they are active.

Jiale Yao's patch for the mcp251xfd driver rejects devices without
match data.

Ji-Ze Hong fixes a struct size mismatch in the f81604 CAN driver.

The next patch is by me, targets the gs_usb driver and adds
workarounds for the HScanT USB to CAN adapter.

Cen Zhang fixes a slab-out-of-bounds read access in the kvaser_usb
driver.

A patch by Stefan Günther targets the peak_usb driver and fixes the
CAN-ID when reporting CAN errors.

Chris Strong contributes 2 patches, to fix an out of memory and packet
loss problem in the mcp251xfd CAN driver under sustained receive
traffic.

regards,
Marc

---

The following changes since commit a7bfaba4823e3c165bb2004c74eff7c096672bc7:

  ipv6: fix prefix route expiry in modify_prefix_route() (2026-09-25 17:34:11 -0700)

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-7.3-20260929

for you to fetch changes up to 085eb39e46ae1b6f3934eb3785be2077aae73ac7:

  Merge patch series "can: mcp251xfd: bound RX offload batches during long IRQs" (2026-09-29 22:38:08 +0200)

----------------------------------------------------------------
linux-can-fixes-for-7.3-20260929

----------------------------------------------------------------
Cen Zhang (Microsoft Security FORGE Labs) (1):
      can: kvaser_usb: validate command format before parsing in hydra receive path

Chris Strong (2):
      can: rx-offload: add IRQ queue flush predicate
      can: mcp251xfd: flush RX offload queue during long IRQs

Fan Wu (1):
      can: gs_usb: kill RX URBs before destroying the netdevs

Ji-Ze Hong (Peter Hong) (1):
      usb: f81604: fix struct f81604_int_data size mismatch

Jiale Yao (1):
      can: mcp251xfd: mcp251xfd_probe(): reject devices without match data

Joshua Crofts (1):
      can: m_can: pci: add missing pm_runtime_dont_use_autosuspend() call

Kaixuan Li (1):
      can: isotp: check the frame type, not just the length

Marc Kleine-Budde (3):
      Merge patch series "CAN netlayer fixes for stable"
      can: gs_usb: add workarounds for HScanT USB to CAN adapter
      Merge patch series "can: mcp251xfd: bound RX offload batches during long IRQs"

Maximilian Zimmermann (1):
      can: xilinx_can: set CAN FD flags on received frames

Oliver Hartkopp (3):
      can: remove CAN filters independent from namespace
      can: convert unreliable ARPHRD_CAN type checks to robust can_get_ml_priv()
      can: fix unique skb identifier regression under RPS

Stefan Günther (1):
      can: peak_usb: fix missing CAN_ERR_FLAG when reporting error counters

Vincent Mailhol (1):
      can: dev: can_dropped_invalid_skb: drop CAN XL frames on non-CAN XL devices

zjamg (1):
      can: dev: init_can_skb(): restore skb header initialization

 drivers/net/can/dev/skb.c                         |   7 +-
 drivers/net/can/m_can/m_can_pci.c                 |   1 +
 drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c    |  21 +++-
 drivers/net/can/usb/f81604.c                      |   2 +-
 drivers/net/can/usb/gs_usb.c                      | 129 ++++++++++++++++++++-
 drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c | 135 ++++++++++++++++++++--
 drivers/net/can/usb/peak_usb/pcan_usb.c           |   2 +-
 drivers/net/can/vxcan.c                           |   3 +
 drivers/net/can/xilinx_can.c                      |   6 +
 include/linux/can/core.h                          |   3 +-
 include/linux/can/rx-offload.h                    |   7 ++
 include/linux/can/skb.h                           |   4 +-
 include/net/can.h                                 |   2 +
 net/can/af_can.c                                  |  56 ++++++---
 net/can/bcm.c                                     | 107 ++++++++++++-----
 net/can/gw.c                                      |  10 +-
 net/can/isotp.c                                   |  36 +++---
 net/can/raw.c                                     |  17 +--
 18 files changed, 461 insertions(+), 87 deletions(-)