================================================================== BUG: KCSAN: data-race in can_rcv_filter / can_rcv_filter read-write to 0xffff88810149e1a8 of 8 bytes by interrupt on cpu 1: deliver net/can/af_can.c:573 [inline] can_rcv_filter+0x221/0x490 net/can/af_can.c:606 can_receive+0x182/0x1f0 net/can/af_can.c:663 can_rcv+0xe7/0x180 net/can/af_can.c:687 __netif_receive_skb_one_core net/core/dev.c:5479 [inline] __netif_receive_skb+0x90/0x1b0 net/core/dev.c:5593 process_backlog+0x21f/0x380 net/core/dev.c:5921 __napi_poll+0x60/0x3b0 net/core/dev.c:6482 napi_poll net/core/dev.c:6549 [inline] net_rx_action+0x322/0x6c0 net/core/dev.c:6659 __do_softirq+0xe4/0x2b0 kernel/softirq.c:571 run_ksoftirqd+0x23/0x30 kernel/softirq.c:934 smpboot_thread_fn+0x2f8/0x490 kernel/smpboot.c:164 kthread+0x1ac/0x1e0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 read-write to 0xffff88810149e1a8 of 8 bytes by interrupt on cpu 0: deliver net/can/af_can.c:573 [inline] can_rcv_filter+0x221/0x490 net/can/af_can.c:606 can_receive+0x182/0x1f0 net/can/af_can.c:663 can_rcv+0xe7/0x180 net/can/af_can.c:687 __netif_receive_skb_one_core net/core/dev.c:5479 [inline] __netif_receive_skb+0x90/0x1b0 net/core/dev.c:5593 process_backlog+0x21f/0x380 net/core/dev.c:5921 __napi_poll+0x60/0x3b0 net/core/dev.c:6482 napi_poll net/core/dev.c:6549 [inline] net_rx_action+0x322/0x6c0 net/core/dev.c:6659 __do_softirq+0xe4/0x2b0 kernel/softirq.c:571 run_ksoftirqd+0x23/0x30 kernel/softirq.c:934 smpboot_thread_fn+0x2f8/0x490 kernel/smpboot.c:164 kthread+0x1ac/0x1e0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 value changed: 0x000000000000430c -> 0x000000000000430d Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 12 Comm: ksoftirqd/0 Not tainted 6.3.0-rc1-syzkaller-00106-g44889ba56cbb #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 ================================================================== vxcan0: j1939_tp_rxtimer: 0xffff88813344d400: rx timeout, send abort vxcan0: j1939_tp_rxtimer: 0xffff888103698e00: rx timeout, send abort vxcan0: j1939_xtp_rx_abort_one: 0xffff88813344d400: 0x00000: (3) A timeout occurred and this is the connection abort to close the session. vxcan0: j1939_xtp_rx_abort_one: 0xffff888103698e00: 0x00000: (3) A timeout occurred and this is the connection abort to close the session.