[PATCH net 0/20] pull-request: can 2026-07-29

Hello netdev-team,

this is a pull request of 20 patches for net/main.

The first 2 patches fix problems in the CAN J1939 protocol and are by
Tetsuo Handa and Oleksij Rempel.

The next 2 patches fix problems in the CAN ISOTP protocol and are by
Oliver Hartkopp and Minhong He.

Avi Weiss contributes contributed 4 fixes for the ctucanfd, Pengpeng
Hou's patch adds a missing MODULE_DEVICE_TABLE.

The patches for the peak_usb driver are contributed by James Gao,
Maoyi Xie, Maoyi Xie and add sanity checks for the USB bulk data
parsing and fix a double free.

2 fixes for the kvaser_usb driver are provided by Abdun Nihaal and
Pengpeng Hou, a mem leak is fixed and sanity checks for the USB bulk
data parsing.

Tu Nguyen's patch for the rcar_canfd driver fixes the initializing
flow.

Pengpeng Hou contributes a patch for the softing driver to validate
the firmware record spans.

Lucas Martins Alves's patch for the c_can driver keeps the controller
in init mode until configuration is complete.

A patch by my add missing URB resubmission on skb allocation failure
to the gs_usb driver.

Guangshuo Li's patch for the etas_es58x driver fixes a RX buffer leak.

The last patch is by Pengpeng Hou and adds sanity checks to the USB
bulk data parsing of the ems_usb driver.

regards,
Marc

---

The following changes since commit 3bd438a58e910db5dc369aa25dfed1fc95f1b596:

  octeontx2-af: Block VFs from clobbering special CGX PKIND state (2026-07-28 18:52:58 -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-7.2-20260729

for you to fetch changes up to 02925f51377f2a42a6724f00549167499c9302e5:

  can: ems_usb: validate CPC message lengths (2026-07-29 12:00:18 +0200)

----------------------------------------------------------------
linux-can-fixes-for-7.2-20260729

----------------------------------------------------------------
Abdun Nihaal (1):
      can: kvaser_usb: kvaser_usb_hydra_get_busparams(): fix memory leak in kvaser_usb_hydra_get_busparams()

Avi Weiss (4):
      can: ctucanfd: unmap BAR0 using base address
      can: ctucanfd: mark error-active controller status valid
      can: ctucanfd: handle bus error interrupts
      can: ctucanfd: use self-test mode for PRESUME_ACK

Guangshuo Li (1):
      can: etas_es58x: es58x_read_bulk_callback(): fix RX buffer leak on URB resubmit failure

James Gao (1):
      can: peak_usb: add bounds check for USB channel index

Lucas Martins Alves (1):
      can: c_can: c_can_chip_config(): keep controller in init mode until bittiming is configured

Maoyi Xie (1):
      can: peak_usb: peak_usb_start(): fix double free of transfer buffer on URB submit error

Marc Kleine-Budde (2):
      Merge patch series "can: j1939: resend lost patches for buffer init and netdevice tracking"
      can: gs_usb: gs_usb_receive_bulk_callback(): resubmit URB on skb allocation failure

Minhong He (1):
      can: isotp: check register_netdevice_notifier() error in module init

Oleksij Rempel (1):
      can: j1939: transport: j1939_session_fresh_new(): initialize receive buffer

Oliver Hartkopp (1):
      can: isotp: fix timer drain order, wakeup handling and tx_gen ordering

Pengpeng Hou (5):
      can: ctucanfd: add missing MODULE_DEVICE_TABLE()
      can: peak_usb: validate uCAN receive record lengths
      can: kvaser_usb_leaf: kvaser_usb_leaf_wait_cmd(): validate received command extents
      can: softing: fw_parse(): validate firmware record spans
      can: ems_usb: validate CPC message lengths

Tetsuo Handa (1):
      can: j1939: use netdevice_tracker for j1939_{priv,session,ecu} tracking

Tu Nguyen (1):
      can: rcar_canfd: change the initializing flow for clocks and resets

 drivers/net/can/c_can/c_can_main.c                |   8 +-
 drivers/net/can/ctucanfd/ctucanfd_base.c          |  14 +-
 drivers/net/can/ctucanfd/ctucanfd_pci.c           |   3 +-
 drivers/net/can/rcar/rcar_canfd.c                 |  32 +--
 drivers/net/can/softing/softing_fw.c              |  46 ++-
 drivers/net/can/usb/ems_usb.c                     |  43 +++
 drivers/net/can/usb/etas_es58x/es58x_core.c       |   1 -
 drivers/net/can/usb/gs_usb.c                      |   4 +-
 drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c |   1 +
 drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c  |  13 +-
 drivers/net/can/usb/peak_usb/pcan_usb_core.c      |   1 -
 drivers/net/can/usb/peak_usb/pcan_usb_fd.c        |  40 ++-
 drivers/net/can/usb/peak_usb/pcan_usb_pro.c       |  20 +-
 net/can/isotp.c                                   | 334 ++++++++++++++++------
 net/can/j1939/bus.c                               |   2 +
 net/can/j1939/j1939-priv.h                        |   3 +
 net/can/j1939/main.c                              |   8 +-
 net/can/j1939/transport.c                         |   4 +-
 18 files changed, 428 insertions(+), 149 deletions(-)