================================================================== BUG: KCSAN: data-race in can_send / can_send read-write to 0xffff888113bc2470 of 8 bytes by interrupt on cpu 0: can_send+0x576/0x5d0 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:1689 [inline] __hrtimer_run_queues+0x20d/0x5e0 kernel/time/hrtimer.c:1753 hrtimer_run_softirq+0xe4/0x2c0 kernel/time/hrtimer.c:1770 handle_softirqs+0xc3/0x280 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu kernel/softirq.c:637 [inline] irq_exit_rcu+0x3e/0x90 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x73/0x80 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 __devinet_sysctl_unregister net/ipv4/devinet.c:2626 [inline] devinet_sysctl_unregister net/ipv4/devinet.c:2653 [inline] inetdev_destroy net/ipv4/devinet.c:333 [inline] inetdev_event+0x617/0xb10 net/ipv4/devinet.c:1633 notifier_call_chain kernel/notifier.c:93 [inline] raw_notifier_call_chain+0x6f/0x1d0 kernel/notifier.c:461 call_netdevice_notifiers_info+0xae/0x100 net/core/dev.c:1994 call_netdevice_notifiers_extack net/core/dev.c:2032 [inline] call_netdevice_notifiers net/core/dev.c:2046 [inline] unregister_netdevice_many_notify+0x834/0x1110 net/core/dev.c:11344 unregister_netdevice_many+0x19/0x20 net/core/dev.c:11406 cleanup_net+0x417/0x830 net/core/net_namespace.c:635 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0x483/0x9a0 kernel/workqueue.c:3312 worker_thread+0x526/0x700 kernel/workqueue.c:3390 kthread+0x1d1/0x210 kernel/kthread.c:389 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 read-write to 0xffff888113bc2470 of 8 bytes by interrupt on cpu 1: can_send+0x576/0x5d0 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:1689 [inline] __hrtimer_run_queues+0x20d/0x5e0 kernel/time/hrtimer.c:1753 hrtimer_run_softirq+0xe4/0x2c0 kernel/time/hrtimer.c:1770 handle_softirqs+0xc3/0x280 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu kernel/softirq.c:637 [inline] irq_exit_rcu+0x3e/0x90 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x37/0x80 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 value changed: 0x0000000000007b0d -> 0x0000000000007b0e Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 3260 Comm: syz-executor Not tainted 6.11.0-rc2-syzkaller-00042-gcf6d429eb656 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 ==================================================================