================================================================== BUG: KCSAN: data-race in can_send / can_stat_update read-write to 0xffff888121d7b610 of 8 bytes by interrupt on cpu 1: can_send+0x55e/0x5d0 net/can/af_can.c:289 bcm_can_tx+0x314/0x410 net/can/bcm.c:302 bcm_tx_timeout_handler+0xdb/0x260 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x217/0x700 kernel/time/hrtimer.c:1749 hrtimer_run_softirq+0xd6/0x120 kernel/time/hrtimer.c:1766 __do_softirq+0xc1/0x265 kernel/softirq.c:571 run_ksoftirqd+0x17/0x20 kernel/softirq.c:939 smpboot_thread_fn+0x30a/0x4a0 kernel/smpboot.c:164 kthread+0x1d7/0x210 kernel/kthread.c:379 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 read to 0xffff888121d7b610 of 8 bytes by interrupt on cpu 0: can_stat_update+0x1f3/0x6b0 net/can/proc.c:134 call_timer_fn+0x35/0x290 kernel/time/timer.c:1700 expire_timers kernel/time/timer.c:1751 [inline] __run_timers+0x46c/0x650 kernel/time/timer.c:2022 run_timer_softirq+0x1d/0x40 kernel/time/timer.c:2035 __do_softirq+0xc1/0x265 kernel/softirq.c:571 run_ksoftirqd+0x17/0x20 kernel/softirq.c:939 smpboot_thread_fn+0x30a/0x4a0 kernel/smpboot.c:164 kthread+0x1d7/0x210 kernel/kthread.c:379 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 value changed: 0x00000000000082a7 -> 0x00000000000082a8 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 13 Comm: ksoftirqd/0 Not tainted 6.4.0-rc4-syzkaller-00078-g929ed21dfdb6 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 ==================================================================