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BUG: KCSAN: data-race in can_send / can_stat_update

read-write to 0xffff8881255e0f90 of 8 bytes by interrupt on cpu 0:
 can_send+0x470/0x500 net/can/af_can.c:290
 bcm_can_tx+0x2f0/0x3e0 net/can/bcm.c:300
 bcm_tx_timeout_handler+0xce/0x250
 __run_hrtimer+0x132/0x420 kernel/time/hrtimer.c:1685
 __hrtimer_run_queues kernel/time/hrtimer.c:1749 [inline]
 hrtimer_run_softirq+0x1e9/0x480 kernel/time/hrtimer.c:1766
 __do_softirq+0x158/0x2e3 kernel/softirq.c:571
 run_ksoftirqd+0x1f/0x30 kernel/softirq.c:934
 smpboot_thread_fn+0x308/0x4a0 kernel/smpboot.c:164
 kthread+0x1a9/0x1e0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30

read to 0xffff8881255e0f90 of 8 bytes by interrupt on cpu 1:
 can_stat_update+0x21a/0x6f0 net/can/proc.c:134
 call_timer_fn+0x2e/0x240 kernel/time/timer.c:1474
 expire_timers+0x116/0x240 kernel/time/timer.c:1519
 __run_timers+0x350/0x400 kernel/time/timer.c:1790
 run_timer_softirq+0x2e/0x60 kernel/time/timer.c:1803
 __do_softirq+0x158/0x2e3 kernel/softirq.c:571
 __irq_exit_rcu kernel/softirq.c:650 [inline]
 irq_exit_rcu+0x41/0x70 kernel/softirq.c:662
 sysvec_apic_timer_interrupt+0x8d/0xb0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x1b/0x20
 finish_task_switch+0xfa/0x240 kernel/sched/core.c:4996
 context_switch kernel/sched/core.c:5119 [inline]
 __schedule+0x50d/0x6b0 kernel/sched/core.c:6428
 schedule+0x71/0xa0 kernel/sched/core.c:6500
 freezable_schedule include/linux/freezer.h:172 [inline]
 do_nanosleep+0xc4/0x390 kernel/time/hrtimer.c:2044
 hrtimer_nanosleep+0x10b/0x200 kernel/time/hrtimer.c:2097
 common_nsleep+0x64/0x80 kernel/time/posix-timers.c:1227
 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1267 [inline]
 __se_sys_clock_nanosleep kernel/time/posix-timers.c:1245 [inline]
 __x64_sys_clock_nanosleep+0x20c/0x240 kernel/time/posix-timers.c:1245
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x46/0xb0

value changed: 0x0000000000020b8b -> 0x0000000000020b8c

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 1845 Comm: syz-executor.2 Tainted: G        W         5.19.0-rc2-syzkaller-00097-g48a23ec6ff2b-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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