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BUG: KCSAN: data-race in can_send / can_send

read-write to 0xffff8881047c2570 of 8 bytes by interrupt on cpu 1:
 can_send+0x5b6/0x6d0 net/can/af_can.c:291
 bcm_can_tx+0x314/0x420 net/can/bcm.c:314
 bcm_tx_timeout_handler+0xdb/0x260
 __run_hrtimer kernel/time/hrtimer.c:1738 [inline]
 __hrtimer_run_queues+0x20d/0x5e0 kernel/time/hrtimer.c:1802
 hrtimer_run_softirq+0xe4/0x2c0 kernel/time/hrtimer.c:1819
 handle_softirqs+0xbf/0x280 kernel/softirq.c:561
 __do_softirq kernel/softirq.c:595 [inline]
 invoke_softirq kernel/softirq.c:435 [inline]
 __irq_exit_rcu+0x3a/0xc0 kernel/softirq.c:662
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0x73/0x80 arch/x86/kernel/apic/apic.c:1049
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
 finish_task_switch+0xbf/0x2b0 kernel/sched/core.c:5251
 context_switch kernel/sched/core.c:5380 [inline]
 __schedule+0x6fe/0x930 kernel/sched/core.c:6764
 __schedule_loop kernel/sched/core.c:6841 [inline]
 schedule+0x55/0xc0 kernel/sched/core.c:6856
 do_nanosleep+0xa3/0x300 kernel/time/hrtimer.c:2078
 hrtimer_nanosleep+0xc4/0x1c0 kernel/time/hrtimer.c:2125
 common_nsleep+0x68/0x90 kernel/time/posix-timers.c:1356
 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1402 [inline]
 __se_sys_clock_nanosleep+0x20a/0x240 kernel/time/posix-timers.c:1379
 __x64_sys_clock_nanosleep+0x55/0x70 kernel/time/posix-timers.c:1379
 x64_sys_call+0x25b8/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:231
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

read-write to 0xffff8881047c2570 of 8 bytes by interrupt on cpu 0:
 can_send+0x5b6/0x6d0 net/can/af_can.c:291
 bcm_can_tx+0x314/0x420 net/can/bcm.c:314
 bcm_tx_timeout_handler+0xdb/0x260
 __run_hrtimer kernel/time/hrtimer.c:1738 [inline]
 __hrtimer_run_queues+0x20d/0x5e0 kernel/time/hrtimer.c:1802
 hrtimer_run_softirq+0xe4/0x2c0 kernel/time/hrtimer.c:1819
 handle_softirqs+0xbf/0x280 kernel/softirq.c:561
 run_ksoftirqd+0x1c/0x30 kernel/softirq.c:950
 smpboot_thread_fn+0x31c/0x4c0 kernel/smpboot.c:164
 kthread+0x4ae/0x520 kernel/kthread.c:464
 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

value changed: 0x00000000000002e4 -> 0x00000000000002e5

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 15 Comm: ksoftirqd/0 Not tainted 6.13.0-syzkaller-05252-gbc8198dc7ebc #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
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