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BUG: KCSAN: data-race in can_send / can_send

read-write to 0xffff8881289f0610 of 8 bytes by interrupt on cpu 1:
 can_send+0x5a2/0x6d0 net/can/af_can.c:290
 bcm_can_tx+0x314/0x420 net/can/bcm.c:314
 bcm_tx_timeout_handler+0xdb/0x260
 __run_hrtimer kernel/time/hrtimer.c:1801 [inline]
 __hrtimer_run_queues+0x20d/0x5e0 kernel/time/hrtimer.c:1865
 hrtimer_run_softirq+0xe4/0x2c0 kernel/time/hrtimer.c:1882
 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

read-write to 0xffff8881289f0610 of 8 bytes by interrupt on cpu 0:
 can_send+0x5a2/0x6d0 net/can/af_can.c:290
 bcm_can_tx+0x314/0x420 net/can/bcm.c:314
 bcm_tx_timeout_handler+0xdb/0x260
 __run_hrtimer kernel/time/hrtimer.c:1801 [inline]
 __hrtimer_run_queues+0x20d/0x5e0 kernel/time/hrtimer.c:1865
 hrtimer_run_softirq+0xe4/0x2c0 kernel/time/hrtimer.c:1882
 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
 write_comp_data kernel/kcov.c:270 [inline]
 __sanitizer_cov_trace_const_cmp1+0x81/0x90 kernel/kcov.c:300
 __preempt_count_dec_and_test arch/x86/include/asm/preempt.h:94 [inline]
 idr_preload_end include/linux/idr.h:174 [inline]
 bpf_link_alloc_id kernel/bpf/syscall.c:3264 [inline]
 bpf_link_prime+0xa0/0x1e0 kernel/bpf/syscall.c:3292
 bpf_raw_tp_link_attach+0x2dc/0x3e0 kernel/bpf/syscall.c:3979
 bpf_raw_tracepoint_open+0x135/0x2c0 kernel/bpf/syscall.c:4016
 __sys_bpf+0x32b/0x7a0 kernel/bpf/syscall.c:5836
 __do_sys_bpf kernel/bpf/syscall.c:5901 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5899 [inline]
 __x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5899
 x64_sys_call+0x2914/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:322
 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

value changed: 0x00000000000002d4 -> 0x00000000000002d5

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 15417 Comm: syz.6.4749 Not tainted 6.14.0-rc2-syzkaller-00056-gab68d7eb7b1a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
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