can network layer · Maintained

Maintainers

• M Oliver Hartkopp <socketcan@hartkopp.net>
• M Marc Kleine-Budde <mkl@pengutronix.de>

Paths

• F Documentation/networking/can.rst
• F Documentation/networking/iso15765-2.rst
• F include/linux/can/can-ml.h
• F include/linux/can/core.h
• F include/linux/can/skb.h
• F include/net/can.h
• F include/net/netns/can.h
• F include/uapi/linux/can.h
• F include/uapi/linux/can/bcm.h
• F include/uapi/linux/can/gw.h
• F include/uapi/linux/can/isotp.h
• F include/uapi/linux/can/raw.h
• F net/can/
• F net/sched/em_canid.c
• F tools/testing/selftests/net/can/

Last 30 days

Most active threads (last 7 days)

• COOLING4d [PATCH] can: j1939: fix transport session leak and socket bind/connect validation
  2026-09-19 22:34 · 0 replies in 7d · Hui Peng <hidden>
• COOLING4d [PATCH] can: j1939: return 0 instead of user value in j1939_sk_setsockopt_flag()
  2026-09-19 21:36 · 0 replies in 7d · Hui Peng <hidden>

Recent patches

Most-recent 30 patches in this subsystem on netdev (capped at 30), ordered by date desc.

• COOLING4d [PATCH] can: j1939: fix transport session leak and socket bind/connect validation
  2026-09-19 · Hui Peng <hidden>
• COOLING4d [PATCH] can: j1939: return 0 instead of user value in j1939_sk_setsockopt_flag()
  2026-09-19 · Hui Peng <hidden>
• COLD16d [PATCH net v2 2/2] can: j1939: check received packet count before completing session
  2026-09-09 · Liu Chao <hidden>
• COLD16d [PATCH net v2 1/2] can: j1939: reject TP RTS with wrong packet count
  2026-09-09 · Liu Chao <hidden>
• COLD17d [PATCH 2/2] can: j1939: check received packet count before completing session
  2026-09-07 · Liu Chao <hidden>
• COLD17d [PATCH 1/2] can: j1939: reject TP RTS with wrong packet count
  2026-09-07 · Liu Chao <hidden>
• COLD23d [PATCH net-next v4] net: Replace %pK output with 0
  2026-09-01 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• COLD16d [PATCH net 08/14] can: skb: make echo skb freeing safe in any IRQ context
  2026-08-26 · Marc Kleine-Budde <mkl@pengutronix.de>
• COLD16d [PATCH net 02/14] can: convert unreliable ARPHRD_CAN type checks to robust can_get_ml_priv()
  2026-08-26 · Marc Kleine-Budde <mkl@pengutronix.de>
• COLD25d [PATCH 11/11] can: isotp: publish tx.state with smp_store_release()
  2026-08-25 · Jinjie Ruan <hidden>
• COLD43d [can-next] can: proc: remove pointers from CAN specific proc output
  2026-08-14 · Oliver Hartkopp <socketcan@hartkopp.net>
• COLD43d [PATCH net-next v3] net: Replace %pK output with 0
  2026-08-12 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• COLD53d [PATCH net] can: j1939: avoid address-claim timer deadlock
  2026-07-31 · Felix Hoffmann <hidden>
• COLD58d [PATCH net 04/20] can: isotp: check register_netdevice_notifier() error in module init
  2026-07-29 · Marc Kleine-Budde <mkl@pengutronix.de>
• COLD58d REVIEWED: 5 (5M) [PATCH net 01/20] can: j1939: use netdevice_tracker for j1939_{priv,session,ecu} tracking
  2026-07-29 · Marc Kleine-Budde <mkl@pengutronix.de>
• COLD58d [PATCH net 02/20] can: j1939: transport: j1939_session_fresh_new(): initialize receive buffer
  2026-07-29 · Marc Kleine-Budde <mkl@pengutronix.de>
• COLD58d [PATCH net 03/20] can: isotp: fix timer drain order, wakeup handling and tx_gen ordering
  2026-07-29 · Marc Kleine-Budde <mkl@pengutronix.de>
• STALE61d [PATCH net] can: bcm: add missing synchronize_rcu() in bcm_delete_rx_op()
  2026-07-27 · Nguyen Le Thanh Tung <hidden>
• STALE62d [PATCH net v11] can: isotp: fix timer drain order, wakeup handling and tx_gen ordering
  2026-07-24 · Oliver Hartkopp <socketcan@hartkopp.net>
• DORMANTno replies [RESEND PATCH net v10] can: isotp: fix timer drain order, wakeup handling and tx_gen ordering
  2026-07-23 · Oliver Hartkopp <socketcan@hartkopp.net>
• COLD58d [PATCH net-next v2] net: Replace %pK output with 0
  2026-07-20 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• STALE61d [PATCH net 08/19] can: bcm: add locking when updating filter and timer values
  2026-07-16 · Marc Kleine-Budde <mkl@pengutronix.de>
• STALE61d [PATCH net 07/19] can: bcm: fix lockless bound/ifindex race and silent RX_SETUP failure
  2026-07-16 · Marc Kleine-Budde <mkl@pengutronix.de>
• STALE61d [PATCH net 18/19] can: isotp: fix use-after-free race with concurrent NETDEV_UNREGISTER
  2026-07-16 · Marc Kleine-Budde <mkl@pengutronix.de>
• STALE61d [PATCH net 09/19] can: bcm: fix CAN frame rx/tx statistics
  2026-07-16 · Marc Kleine-Budde <mkl@pengutronix.de>
• STALE61d [PATCH net 10/19] can: bcm: add missing rcu list annotations and operations
  2026-07-16 · Marc Kleine-Budde <mkl@pengutronix.de>
• STALE61d REVIEWED: 5 (4M) [PATCH net 03/19] can: raw: add locking for raw flags bitfield
  2026-07-16 · Marc Kleine-Budde <mkl@pengutronix.de>
• STALE61d [PATCH net 19/19] can: isotp: serialize TX state transitions under so->rx_lock
  2026-07-16 · Marc Kleine-Budde <mkl@pengutronix.de>
• STALE61d [PATCH net 17/19] can: isotp: use unconditional synchronize_rcu() in isotp_release()
  2026-07-16 · Marc Kleine-Budde <mkl@pengutronix.de>
• STALE61d REVIEWED: 2 (1M) [PATCH net 06/19] can: bcm: defer rx_op deallocation to workqueue to fix thrtimer UAF
  2026-07-16 · Marc Kleine-Budde <mkl@pengutronix.de>

Needs attention (review trailers in, no pickup)

Patches with review trailers that haven't landed in mainline and haven't been Acked by a maintainer. Oldest first.

• STALE136d REVIEWED: 5 (4M) [PATCH net 1/6] can: raw: add locking for raw flags bitfield
  2026-05-07 · Marc Kleine-Budde <mkl@pengutronix.de> · 1 Reviewed-by, 2 Tested-by

Quiet for 30+ days

Patches with no review trailers and no replies. Either the author is heads-down elsewhere or these slipped through. Oldest first.

• STALE193d [PATCH v3 03/12] net: change sock.sk_ino and sock_i_ino() to u64
  2026-03-04 · Jeff Layton <jlayton@kernel.org>
• STALE186d [PATCH net 3/5] can: statistics: add missing atomic access in hot path
  2026-03-23 · Marc Kleine-Budde <mkl@pengutronix.de>
• STALE176d [PATCH net-next v2 4/4] can: raw: convert to getsockopt_iter
  2026-04-01 · Breno Leitao <leitao@debian.org>
• STALE113d [PATCH net-next v3 4/4] can: raw: convert to getsockopt_iter
  2026-04-08 · Breno Leitao <leitao@debian.org>
• STALE166d [PATCH net-next 1/5] net: change sock_queue_rcv_skb_reason() to return a drop_reason
  2026-04-09 · Eric Dumazet <edumazet@google.com>
• STALE142d [PATCH net-next 1/5] can: isotp: convert to getsockopt_iter
  2026-05-05 · Breno Leitao <leitao@debian.org>
• STALE142d [PATCH net-next 2/5] can: j1939: convert to getsockopt_iter
  2026-05-05 · Breno Leitao <leitao@debian.org>
• STALE61d [PATCH net 12/19] can: bcm: validate frame length in bcm_rx_setup() for RTR replies
  2026-07-16 · Marc Kleine-Budde <mkl@pengutronix.de>
• STALE61d [PATCH net 11/19] can: bcm: extend bcm_tx_lock usage for data and timer updates
  2026-07-16 · Marc Kleine-Budde <mkl@pengutronix.de>
• DORMANTno replies [RESEND PATCH net v10] can: isotp: fix timer drain order, wakeup handling and tx_gen ordering
  2026-07-23 · Oliver Hartkopp <socketcan@hartkopp.net>