================================================================== BUG: KCSAN: data-race in can_send / can_send read-write to 0xffff88810be1fef0 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:1691 [inline] __hrtimer_run_queues+0x20d/0x5e0 kernel/time/hrtimer.c:1755 hrtimer_run_softirq+0xe4/0x2c0 kernel/time/hrtimer.c:1772 handle_softirqs+0xbf/0x280 kernel/softirq.c:554 do_softirq+0x5e/0x90 kernel/softirq.c:455 __local_bh_enable_ip+0x6e/0x70 kernel/softirq.c:382 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline] _raw_spin_unlock_bh+0x36/0x40 kernel/locking/spinlock.c:210 spin_unlock_bh include/linux/spinlock.h:396 [inline] batadv_nc_purge_paths+0x220/0x270 net/batman-adv/network-coding.c:471 batadv_nc_worker+0x402/0xad0 net/batman-adv/network-coding.c:722 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0x483/0x9a0 kernel/workqueue.c:3310 worker_thread+0x51d/0x6f0 kernel/workqueue.c:3391 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 0xffff88810be1fef0 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:1691 [inline] __hrtimer_run_queues+0x20d/0x5e0 kernel/time/hrtimer.c:1755 hrtimer_run_softirq+0xe4/0x2c0 kernel/time/hrtimer.c:1772 handle_softirqs+0xbf/0x280 kernel/softirq.c:554 run_ksoftirqd+0x1c/0x30 kernel/softirq.c:927 smpboot_thread_fn+0x31c/0x4c0 kernel/smpboot.c:164 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 value changed: 0x000000000000043c -> 0x000000000000043d Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 15 Comm: ksoftirqd/0 Tainted: G W 6.12.0-syzkaller-00971-g158f238aa69d #0 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 ================================================================== ================================================================== BUG: KCSAN: data-race in can_send / can_send read-write to 0xffff88810be1fe90 of 8 bytes by interrupt on cpu 1: can_send+0x562/0x5d0 net/can/af_can.c:289 bcm_can_tx+0x314/0x420 net/can/bcm.c:314 bcm_tx_timeout_handler+0xdb/0x260 __run_hrtimer kernel/time/hrtimer.c:1691 [inline] __hrtimer_run_queues+0x20d/0x5e0 kernel/time/hrtimer.c:1755 hrtimer_run_softirq+0xe4/0x2c0 kernel/time/hrtimer.c:1772 handle_softirqs+0xbf/0x280 kernel/softirq.c:554 run_ksoftirqd+0x1c/0x30 kernel/softirq.c:927 smpboot_thread_fn+0x31c/0x4c0 kernel/smpboot.c:164 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 0xffff88810be1fe90 of 8 bytes by interrupt on cpu 0: can_send+0x562/0x5d0 net/can/af_can.c:289 bcm_can_tx+0x314/0x420 net/can/bcm.c:314 bcm_tx_timeout_handler+0xdb/0x260 __run_hrtimer kernel/time/hrtimer.c:1691 [inline] __hrtimer_run_queues+0x20d/0x5e0 kernel/time/hrtimer.c:1755 hrtimer_run_softirq+0xe4/0x2c0 kernel/time/hrtimer.c:1772 handle_softirqs+0xbf/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: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 __preempt_count_sub arch/x86/include/asm/preempt.h:84 [inline] __local_bh_enable_ip+0x49/0x70 kernel/softirq.c:385 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline] _raw_spin_unlock_bh+0x36/0x40 kernel/locking/spinlock.c:210 spin_unlock_bh include/linux/spinlock.h:396 [inline] lock_sock_nested+0x10f/0x140 net/core/sock.c:3624 lock_sock include/net/sock.h:1611 [inline] tcp_close+0x1b/0xd0 net/ipv4/tcp.c:3219 inet_release+0xce/0xf0 net/ipv4/af_inet.c:437 __sock_release net/socket.c:640 [inline] sock_close+0x68/0x150 net/socket.c:1408 __fput+0x17a/0x6d0 fs/file_table.c:450 __fput_sync+0x96/0xc0 fs/file_table.c:535 __do_sys_close fs/open.c:1550 [inline] __se_sys_close+0x109/0x1b0 fs/open.c:1535 __x64_sys_close+0x1f/0x30 fs/open.c:1535 x64_sys_call+0x266c/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:4 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: 0x0000000000002deb -> 0x0000000000002dec Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 3319 Comm: syz-executor Tainted: G W 6.12.0-syzkaller-00971-g158f238aa69d #0 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 ================================================================== ================================================================== BUG: KCSAN: data-race in can_send / can_send read-write to 0xffff88810be1fef0 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:1691 [inline] __hrtimer_run_queues+0x20d/0x5e0 kernel/time/hrtimer.c:1755 hrtimer_run_softirq+0xe4/0x2c0 kernel/time/hrtimer.c:1772 handle_softirqs+0xbf/0x280 kernel/softirq.c:554 run_ksoftirqd+0x1c/0x30 kernel/softirq.c:927 smpboot_thread_fn+0x31c/0x4c0 kernel/smpboot.c:164 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 0xffff88810be1fef0 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:1691 [inline] __hrtimer_run_queues+0x20d/0x5e0 kernel/time/hrtimer.c:1755 hrtimer_run_softirq+0xe4/0x2c0 kernel/time/hrtimer.c:1772 handle_softirqs+0xbf/0x280 kernel/softirq.c:554 run_ksoftirqd+0x1c/0x30 kernel/softirq.c:927 smpboot_thread_fn+0x31c/0x4c0 kernel/smpboot.c:164 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 value changed: 0x000000000000983b -> 0x000000000000983c Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 15 Comm: ksoftirqd/0 Tainted: G W 6.12.0-syzkaller-00971-g158f238aa69d #0 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 ================================================================== ================================================================== BUG: KCSAN: data-race in can_receive / can_receive read-write to 0xffff88810be1fe88 of 8 bytes by interrupt on cpu 1: can_receive+0x4e/0x1f0 net/can/af_can.c:649 canfd_rcv+0xe7/0x180 net/can/af_can.c:702 __netif_receive_skb_one_core net/core/dev.c:5670 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5783 process_backlog+0x22e/0x440 net/core/dev.c:6115 __napi_poll+0x63/0x3c0 net/core/dev.c:6779 napi_poll net/core/dev.c:6848 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:6970 handle_softirqs+0xbf/0x280 kernel/softirq.c:554 do_softirq+0x5e/0x90 kernel/softirq.c:455 __local_bh_enable_ip+0x6e/0x70 kernel/softirq.c:382 local_bh_enable include/linux/bottom_half.h:33 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:919 [inline] __dev_queue_xmit+0xb4c/0x2040 net/core/dev.c:4459 dev_queue_xmit include/linux/netdevice.h:3094 [inline] batadv_send_skb_packet+0x264/0x300 net/batman-adv/send.c:108 batadv_send_broadcast_skb+0x24/0x30 net/batman-adv/send.c:127 batadv_iv_ogm_send_to_if net/batman-adv/bat_iv_ogm.c:392 [inline] batadv_iv_ogm_emit net/batman-adv/bat_iv_ogm.c:420 [inline] batadv_iv_send_outstanding_bat_ogm_packet+0x3f0/0x4b0 net/batman-adv/bat_iv_ogm.c:1700 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0x483/0x9a0 kernel/workqueue.c:3310 worker_thread+0x51d/0x6f0 kernel/workqueue.c:3391 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 0xffff88810be1fe88 of 8 bytes by interrupt on cpu 0: can_receive+0x4e/0x1f0 net/can/af_can.c:649 canfd_rcv+0xe7/0x180 net/can/af_can.c:702 __netif_receive_skb_one_core net/core/dev.c:5670 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5783 process_backlog+0x22e/0x440 net/core/dev.c:6115 __napi_poll+0x63/0x3c0 net/core/dev.c:6779 napi_poll net/core/dev.c:6848 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:6970 handle_softirqs+0xbf/0x280 kernel/softirq.c:554 run_ksoftirqd+0x1c/0x30 kernel/softirq.c:927 smpboot_thread_fn+0x31c/0x4c0 kernel/smpboot.c:164 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 value changed: 0x000000000003792d -> 0x000000000003792e Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 15 Comm: ksoftirqd/0 Tainted: G W 6.12.0-syzkaller-00971-g158f238aa69d #0 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 ==================================================================