IPVS: sh: UDP 224.0.0.2:0 - no destination available IPVS: sh: UDP 224.0.0.2:0 - no destination available IPVS: sh: UDP 224.0.0.2:0 - no destination available IPVS: sh: UDP 224.0.0.2:0 - no destination available ================================================================== BUG: KCSAN: data-race in can_rcv_filter / can_rcv_filter read-write to 0xffff8881035fd928 of 8 bytes by interrupt on cpu 0: deliver net/can/af_can.c:574 [inline] can_rcv_filter+0xd1/0x4c0 net/can/af_can.c:600 can_receive+0x182/0x1f0 net/can/af_can.c:664 can_rcv+0xe7/0x180 net/can/af_can.c:688 __netif_receive_skb_one_core net/core/dev.c:5828 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5941 process_backlog+0x22e/0x440 net/core/dev.c:6289 __napi_poll+0x63/0x3c0 net/core/dev.c:7106 napi_poll net/core/dev.c:7175 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:7297 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 0xffff8881035fd928 of 8 bytes by interrupt on cpu 1: deliver net/can/af_can.c:574 [inline] can_rcv_filter+0xd1/0x4c0 net/can/af_can.c:600 can_receive+0x182/0x1f0 net/can/af_can.c:664 can_rcv+0xe7/0x180 net/can/af_can.c:688 __netif_receive_skb_one_core net/core/dev.c:5828 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5941 process_backlog+0x22e/0x440 net/core/dev.c:6289 __napi_poll+0x63/0x3c0 net/core/dev.c:7106 napi_poll net/core/dev.c:7175 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:7297 handle_softirqs+0xbf/0x280 kernel/softirq.c:561 do_softirq+0x5e/0x90 kernel/softirq.c:462 __local_bh_enable_ip+0x6e/0x70 kernel/softirq.c:389 __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] hash_net6_gc+0xfa/0x280 net/netfilter/ipset/ip_set_hash_gen.h:581 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0x4db/0xa20 kernel/workqueue.c:3317 worker_thread+0x51d/0x6f0 kernel/workqueue.c:3398 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: 0x00000000000fa555 -> 0x00000000000fa556 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 29409 Comm: kworker/1:1 Not tainted 6.14.0-rc2-syzkaller-00390-g224e74511041 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Workqueue: events_power_efficient hash_net6_gc ================================================================== ================================================================== BUG: KCSAN: data-race in can_receive / can_receive read-write to 0xffff88811765f298 of 8 bytes by interrupt on cpu 0: can_receive+0x1b6/0x1f0 net/can/af_can.c:672 can_rcv+0xe7/0x180 net/can/af_can.c:688 __netif_receive_skb_one_core net/core/dev.c:5828 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5941 process_backlog+0x22e/0x440 net/core/dev.c:6289 __napi_poll+0x63/0x3c0 net/core/dev.c:7106 napi_poll net/core/dev.c:7175 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:7297 handle_softirqs+0xbf/0x280 kernel/softirq.c:561 do_softirq+0x5e/0x90 kernel/softirq.c:462 __local_bh_enable_ip+0x6e/0x70 kernel/softirq.c:389 local_bh_enable include/linux/bottom_half.h:33 [inline] update_defense_level+0x575/0x5b0 net/netfilter/ipvs/ip_vs_ctl.c:210 defense_work_handler+0x1f/0x80 net/netfilter/ipvs/ip_vs_ctl.c:235 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0x4db/0xa20 kernel/workqueue.c:3317 worker_thread+0x51d/0x6f0 kernel/workqueue.c:3398 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 0xffff88811765f298 of 8 bytes by interrupt on cpu 1: can_receive+0x1b6/0x1f0 net/can/af_can.c:672 can_rcv+0xe7/0x180 net/can/af_can.c:688 __netif_receive_skb_one_core net/core/dev.c:5828 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5941 process_backlog+0x22e/0x440 net/core/dev.c:6289 __napi_poll+0x63/0x3c0 net/core/dev.c:7106 napi_poll net/core/dev.c:7175 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:7297 handle_softirqs+0xbf/0x280 kernel/softirq.c:561 do_softirq+0x5e/0x90 kernel/softirq.c:462 __local_bh_enable_ip+0x6e/0x70 kernel/softirq.c:389 local_bh_enable include/linux/bottom_half.h:33 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:919 [inline] mod_peer_timer drivers/net/wireguard/timers.c:38 [inline] wg_timers_any_authenticated_packet_traversal+0xe5/0x110 drivers/net/wireguard/timers.c:215 wg_packet_create_data_done drivers/net/wireguard/send.c:247 [inline] wg_packet_tx_worker+0xe9/0x360 drivers/net/wireguard/send.c:276 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0x4db/0xa20 kernel/workqueue.c:3317 worker_thread+0x51d/0x6f0 kernel/workqueue.c:3398 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: 0x00000000000ff77c -> 0x00000000000ff77d Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 29417 Comm: kworker/1:7 Not tainted 6.14.0-rc2-syzkaller-00390-g224e74511041 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Workqueue: wg-crypt-wg0 wg_packet_tx_worker ================================================================== IPVS: sh: UDP 224.0.0.2:0 - no destination available ================================================================== BUG: KCSAN: data-race in can_can_gw_rcv / can_can_gw_rcv read-write to 0xffff88816284c690 of 4 bytes by interrupt on cpu 0: can_can_gw_rcv+0x7cb/0x7e0 net/can/gw.c:564 deliver net/can/af_can.c:573 [inline] can_rcv_filter+0xbf/0x4c0 net/can/af_can.c:600 can_receive+0x182/0x1f0 net/can/af_can.c:664 can_rcv+0xe7/0x180 net/can/af_can.c:688 __netif_receive_skb_one_core net/core/dev.c:5828 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5941 process_backlog+0x22e/0x440 net/core/dev.c:6289 __napi_poll+0x63/0x3c0 net/core/dev.c:7106 napi_poll net/core/dev.c:7175 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:7297 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 0xffff88816284c690 of 4 bytes by interrupt on cpu 1: can_can_gw_rcv+0x7cb/0x7e0 net/can/gw.c:564 deliver net/can/af_can.c:573 [inline] can_rcv_filter+0xbf/0x4c0 net/can/af_can.c:600 can_receive+0x182/0x1f0 net/can/af_can.c:664 can_rcv+0xe7/0x180 net/can/af_can.c:688 __netif_receive_skb_one_core net/core/dev.c:5828 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5941 process_backlog+0x22e/0x440 net/core/dev.c:6289 __napi_poll+0x63/0x3c0 net/core/dev.c:7106 napi_poll net/core/dev.c:7175 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:7297 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: 0x001070f8 -> 0x001070f9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 23 Comm: ksoftirqd/1 Not tainted 6.14.0-rc2-syzkaller-00390-g224e74511041 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 ================================================================== ================================================================== BUG: KCSAN: data-race in can_receive / can_receive read-write to 0xffff88811765f2f8 of 8 bytes by interrupt on cpu 0: can_receive+0x1ca/0x1f0 net/can/af_can.c:673 can_rcv+0xe7/0x180 net/can/af_can.c:688 __netif_receive_skb_one_core net/core/dev.c:5828 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5941 process_backlog+0x22e/0x440 net/core/dev.c:6289 __napi_poll+0x63/0x3c0 net/core/dev.c:7106 napi_poll net/core/dev.c:7175 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:7297 handle_softirqs+0xbf/0x280 kernel/softirq.c:561 do_softirq+0x5e/0x90 kernel/softirq.c:462 __local_bh_enable_ip+0x6e/0x70 kernel/softirq.c:389 local_bh_enable include/linux/bottom_half.h:33 [inline] xt_replace_table+0x261/0x460 net/netfilter/x_tables.c:1428 __do_replace+0xcc/0x570 net/ipv4/netfilter/ip_tables.c:1064 do_replace net/ipv4/netfilter/ip_tables.c:1141 [inline] do_ipt_set_ctl+0x811/0x8b0 net/ipv4/netfilter/ip_tables.c:1635 nf_setsockopt+0x195/0x1b0 net/netfilter/nf_sockopt.c:101 ip_setsockopt+0xea/0x100 net/ipv4/ip_sockglue.c:1424 tcp_setsockopt+0x93/0xb0 net/ipv4/tcp.c:4030 sock_common_setsockopt+0x64/0x80 net/core/sock.c:3837 do_sock_setsockopt net/socket.c:2303 [inline] __sys_setsockopt+0x187/0x200 net/socket.c:2328 __do_sys_setsockopt net/socket.c:2334 [inline] __se_sys_setsockopt net/socket.c:2331 [inline] __x64_sys_setsockopt+0x66/0x80 net/socket.c:2331 x64_sys_call+0x282e/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:55 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 0xffff88811765f2f8 of 8 bytes by interrupt on cpu 1: can_receive+0x1ca/0x1f0 net/can/af_can.c:673 can_rcv+0xe7/0x180 net/can/af_can.c:688 __netif_receive_skb_one_core net/core/dev.c:5828 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5941 process_backlog+0x22e/0x440 net/core/dev.c:6289 __napi_poll+0x63/0x3c0 net/core/dev.c:7106 napi_poll net/core/dev.c:7175 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:7297 handle_softirqs+0xbf/0x280 kernel/softirq.c:561 do_softirq+0x5e/0x90 kernel/softirq.c:462 __local_bh_enable_ip+0x6e/0x70 kernel/softirq.c:389 local_bh_enable include/linux/bottom_half.h:33 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:919 [inline] mod_peer_timer drivers/net/wireguard/timers.c:38 [inline] wg_timers_any_authenticated_packet_traversal+0xe5/0x110 drivers/net/wireguard/timers.c:215 wg_packet_send_handshake_initiation drivers/net/wireguard/send.c:36 [inline] wg_packet_handshake_send_worker+0xd7/0x150 drivers/net/wireguard/send.c:51 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0x4db/0xa20 kernel/workqueue.c:3317 worker_thread+0x51d/0x6f0 kernel/workqueue.c:3398 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: 0x0000000000004f68 -> 0x0000000000004f69 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 24555 Comm: kworker/u8:6 Not tainted 6.14.0-rc2-syzkaller-00390-g224e74511041 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Workqueue: wg-kex-wg0 wg_packet_handshake_send_worker ================================================================== IPVS: sh: UDP 224.0.0.2:0 - no destination available IPVS: sh: UDP 224.0.0.2:0 - no destination available ================================================================== BUG: KCSAN: data-race in can_send / can_send read-write to 0xffff88811765f290 of 8 bytes by interrupt on cpu 0: can_send+0x5a2/0x6d0 net/can/af_can.c:290 can_can_gw_rcv+0x77d/0x7e0 net/can/gw.c:561 deliver net/can/af_can.c:573 [inline] can_rcv_filter+0xbf/0x4c0 net/can/af_can.c:600 can_receive+0x182/0x1f0 net/can/af_can.c:664 can_rcv+0xe7/0x180 net/can/af_can.c:688 __netif_receive_skb_one_core net/core/dev.c:5828 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5941 process_backlog+0x22e/0x440 net/core/dev.c:6289 __napi_poll+0x63/0x3c0 net/core/dev.c:7106 napi_poll net/core/dev.c:7175 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:7297 handle_softirqs+0xbf/0x280 kernel/softirq.c:561 do_softirq+0x5e/0x90 kernel/softirq.c:462 __local_bh_enable_ip+0x6e/0x70 kernel/softirq.c:389 __raw_write_unlock_bh include/linux/rwlock_api_smp.h:281 [inline] _raw_write_unlock_bh+0x1f/0x30 kernel/locking/spinlock.c:366 addrconf_ifdown+0x709/0xed0 net/ipv6/addrconf.c:3936 addrconf_notify+0x2ff/0x950 notifier_call_chain kernel/notifier.c:85 [inline] raw_notifier_call_chain+0x6f/0x1d0 kernel/notifier.c:453 call_netdevice_notifiers_info+0xae/0x100 net/core/dev.c:2141 call_netdevice_notifiers_extack net/core/dev.c:2179 [inline] call_netdevice_notifiers net/core/dev.c:2193 [inline] unregister_netdevice_many_notify+0x98a/0x1280 net/core/dev.c:11802 unregister_netdevice_many net/core/dev.c:11866 [inline] unregister_netdevice_queue+0x1f4/0x220 net/core/dev.c:11736 unregister_netdevice include/linux/netdevice.h:3335 [inline] nsim_destroy+0xbd/0x330 drivers/net/netdevsim/netdev.c:1021 __nsim_dev_port_del+0xcd/0x100 drivers/net/netdevsim/dev.c:1428 nsim_dev_port_del_all drivers/net/netdevsim/dev.c:1440 [inline] nsim_dev_reload_destroy+0x1a6/0x2d0 drivers/net/netdevsim/dev.c:1661 nsim_dev_reload_down+0x77/0xa0 drivers/net/netdevsim/dev.c:968 devlink_reload+0xab/0x5a0 net/devlink/dev.c:461 devlink_pernet_pre_exit+0xd7/0x220 net/devlink/core.c:509 ops_pre_exit_list net/core/net_namespace.c:162 [inline] cleanup_net+0x34e/0x890 net/core/net_namespace.c:632 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0x4db/0xa20 kernel/workqueue.c:3317 worker_thread+0x51d/0x6f0 kernel/workqueue.c:3398 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 0xffff88811765f290 of 8 bytes by interrupt on cpu 1: can_send+0x5a2/0x6d0 net/can/af_can.c:290 can_can_gw_rcv+0x77d/0x7e0 net/can/gw.c:561 deliver net/can/af_can.c:573 [inline] can_rcv_filter+0xbf/0x4c0 net/can/af_can.c:600 can_receive+0x182/0x1f0 net/can/af_can.c:664 can_rcv+0xe7/0x180 net/can/af_can.c:688 __netif_receive_skb_one_core net/core/dev.c:5828 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5941 process_backlog+0x22e/0x440 net/core/dev.c:6289 __napi_poll+0x63/0x3c0 net/core/dev.c:7106 napi_poll net/core/dev.c:7175 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:7297 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: 0x0000000000245b3c -> 0x0000000000245b3d Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 23 Comm: ksoftirqd/1 Not tainted 6.14.0-rc2-syzkaller-00390-g224e74511041 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 ================================================================== ================================================================== BUG: KCSAN: data-race in can_receive / can_receive read-write to 0xffff88811765f288 of 8 bytes by interrupt on cpu 0: can_receive+0x4e/0x1f0 net/can/af_can.c:650 can_rcv+0xe7/0x180 net/can/af_can.c:688 __netif_receive_skb_one_core net/core/dev.c:5828 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5941 process_backlog+0x22e/0x440 net/core/dev.c:6289 __napi_poll+0x63/0x3c0 net/core/dev.c:7106 napi_poll net/core/dev.c:7175 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:7297 handle_softirqs+0xbf/0x280 kernel/softirq.c:561 do_softirq+0x5e/0x90 kernel/softirq.c:462 __local_bh_enable_ip+0x6e/0x70 kernel/softirq.c:389 __raw_write_unlock_bh include/linux/rwlock_api_smp.h:281 [inline] _raw_write_unlock_bh+0x1f/0x30 kernel/locking/spinlock.c:366 neigh_periodic_work+0x605/0x6b0 net/core/neighbour.c:968 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0x4db/0xa20 kernel/workqueue.c:3317 worker_thread+0x51d/0x6f0 kernel/workqueue.c:3398 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 0xffff88811765f288 of 8 bytes by interrupt on cpu 1: can_receive+0x4e/0x1f0 net/can/af_can.c:650 can_rcv+0xe7/0x180 net/can/af_can.c:688 __netif_receive_skb_one_core net/core/dev.c:5828 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5941 process_backlog+0x22e/0x440 net/core/dev.c:6289 __napi_poll+0x63/0x3c0 net/core/dev.c:7106 napi_poll net/core/dev.c:7175 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:7297 handle_softirqs+0xbf/0x280 kernel/softirq.c:561 do_softirq+0x5e/0x90 kernel/softirq.c:462 __local_bh_enable_ip+0x6e/0x70 kernel/softirq.c:389 local_bh_enable include/linux/bottom_half.h:33 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:919 [inline] mod_peer_timer drivers/net/wireguard/timers.c:38 [inline] wg_timers_any_authenticated_packet_traversal+0xe5/0x110 drivers/net/wireguard/timers.c:215 wg_packet_create_data_done drivers/net/wireguard/send.c:247 [inline] wg_packet_tx_worker+0xe9/0x360 drivers/net/wireguard/send.c:276 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0x4db/0xa20 kernel/workqueue.c:3317 worker_thread+0x51d/0x6f0 kernel/workqueue.c:3398 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: 0x0000000000127fb5 -> 0x0000000000127fb6 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 29417 Comm: kworker/1:7 Not tainted 6.14.0-rc2-syzkaller-00390-g224e74511041 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Workqueue: wg-crypt-wg0 wg_packet_tx_worker ================================================================== IPVS: sh: UDP 224.0.0.2:0 - no destination available ================================================================== BUG: KCSAN: data-race in can_receive / can_receive read-write to 0xffff88811765f298 of 8 bytes by interrupt on cpu 0: can_receive+0x1b6/0x1f0 net/can/af_can.c:672 can_rcv+0xe7/0x180 net/can/af_can.c:688 __netif_receive_skb_one_core net/core/dev.c:5828 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5941 process_backlog+0x22e/0x440 net/core/dev.c:6289 __napi_poll+0x63/0x3c0 net/core/dev.c:7106 napi_poll net/core/dev.c:7175 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:7297 handle_softirqs+0xbf/0x280 kernel/softirq.c:561 do_softirq+0x5e/0x90 kernel/softirq.c:462 __local_bh_enable_ip+0x6e/0x70 kernel/softirq.c:389 local_bh_enable include/linux/bottom_half.h:33 [inline] update_defense_level+0x575/0x5b0 net/netfilter/ipvs/ip_vs_ctl.c:210 defense_work_handler+0x1f/0x80 net/netfilter/ipvs/ip_vs_ctl.c:235 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0x4db/0xa20 kernel/workqueue.c:3317 worker_thread+0x51d/0x6f0 kernel/workqueue.c:3398 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 0xffff88811765f298 of 8 bytes by interrupt on cpu 1: can_receive+0x1b6/0x1f0 net/can/af_can.c:672 can_rcv+0xe7/0x180 net/can/af_can.c:688 __netif_receive_skb_one_core net/core/dev.c:5828 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5941 process_backlog+0x22e/0x440 net/core/dev.c:6289 __napi_poll+0x63/0x3c0 net/core/dev.c:7106 napi_poll net/core/dev.c:7175 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:7297 handle_softirqs+0xbf/0x280 kernel/softirq.c:561 do_softirq+0x5e/0x90 kernel/softirq.c:462 __local_bh_enable_ip+0x6e/0x70 kernel/softirq.c:389 local_bh_enable include/linux/bottom_half.h:33 [inline] xt_replace_table+0x261/0x460 net/netfilter/x_tables.c:1428 __do_replace+0xcc/0x570 net/ipv4/netfilter/ip_tables.c:1064 do_replace net/ipv4/netfilter/ip_tables.c:1141 [inline] do_ipt_set_ctl+0x811/0x8b0 net/ipv4/netfilter/ip_tables.c:1635 nf_setsockopt+0x195/0x1b0 net/netfilter/nf_sockopt.c:101 ip_setsockopt+0xea/0x100 net/ipv4/ip_sockglue.c:1424 tcp_setsockopt+0x93/0xb0 net/ipv4/tcp.c:4030 sock_common_setsockopt+0x64/0x80 net/core/sock.c:3837 do_sock_setsockopt net/socket.c:2303 [inline] __sys_setsockopt+0x187/0x200 net/socket.c:2328 __do_sys_setsockopt net/socket.c:2334 [inline] __se_sys_setsockopt net/socket.c:2331 [inline] __x64_sys_setsockopt+0x66/0x80 net/socket.c:2331 x64_sys_call+0x282e/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:55 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: 0x000000000012f724 -> 0x000000000012f725 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 2903 Comm: syz-executor Not tainted 6.14.0-rc2-syzkaller-00390-g224e74511041 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 ================================================================== ================================================================== BUG: KCSAN: data-race in can_receive / can_receive read-write to 0xffff88811765f2e8 of 8 bytes by interrupt on cpu 0: can_receive+0x62/0x1f0 net/can/af_can.c:651 can_rcv+0xe7/0x180 net/can/af_can.c:688 __netif_receive_skb_one_core net/core/dev.c:5828 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5941 process_backlog+0x22e/0x440 net/core/dev.c:6289 __napi_poll+0x63/0x3c0 net/core/dev.c:7106 napi_poll net/core/dev.c:7175 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:7297 handle_softirqs+0xbf/0x280 kernel/softirq.c:561 do_softirq+0x5e/0x90 kernel/softirq.c:462 __local_bh_enable_ip+0x6e/0x70 kernel/softirq.c:389 __raw_write_unlock_bh include/linux/rwlock_api_smp.h:281 [inline] _raw_write_unlock_bh+0x1f/0x30 kernel/locking/spinlock.c:366 neigh_periodic_work+0x605/0x6b0 net/core/neighbour.c:968 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0x4db/0xa20 kernel/workqueue.c:3317 worker_thread+0x51d/0x6f0 kernel/workqueue.c:3398 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 0xffff88811765f2e8 of 8 bytes by interrupt on cpu 1: can_receive+0x62/0x1f0 net/can/af_can.c:651 can_rcv+0xe7/0x180 net/can/af_can.c:688 __netif_receive_skb_one_core net/core/dev.c:5828 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5941 process_backlog+0x22e/0x440 net/core/dev.c:6289 __napi_poll+0x63/0x3c0 net/core/dev.c:7106 napi_poll net/core/dev.c:7175 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:7297 handle_softirqs+0xbf/0x280 kernel/softirq.c:561 do_softirq+0x5e/0x90 kernel/softirq.c:462 __local_bh_enable_ip+0x6e/0x70 kernel/softirq.c:389 local_bh_enable include/linux/bottom_half.h:33 [inline] xt_replace_table+0x261/0x460 net/netfilter/x_tables.c:1428 __do_replace+0xcc/0x570 net/ipv4/netfilter/ip_tables.c:1064 do_replace net/ipv4/netfilter/ip_tables.c:1141 [inline] do_ipt_set_ctl+0x811/0x8b0 net/ipv4/netfilter/ip_tables.c:1635 nf_setsockopt+0x195/0x1b0 net/netfilter/nf_sockopt.c:101 ip_setsockopt+0xea/0x100 net/ipv4/ip_sockglue.c:1424 tcp_setsockopt+0x93/0xb0 net/ipv4/tcp.c:4030 sock_common_setsockopt+0x64/0x80 net/core/sock.c:3837 do_sock_setsockopt net/socket.c:2303 [inline] __sys_setsockopt+0x187/0x200 net/socket.c:2328 __do_sys_setsockopt net/socket.c:2334 [inline] __se_sys_setsockopt net/socket.c:2331 [inline] __x64_sys_setsockopt+0x66/0x80 net/socket.c:2331 x64_sys_call+0x282e/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:55 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: 0x000000000000bc7a -> 0x000000000000bc7b Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 2903 Comm: syz-executor Not tainted 6.14.0-rc2-syzkaller-00390-g224e74511041 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 ================================================================== IPVS: sh: UDP 224.0.0.2:0 - no destination available IPVS: sh: UDP 224.0.0.2:0 - no destination available ================================================================== BUG: KCSAN: data-race in can_can_gw_rcv / can_can_gw_rcv read-write to 0xffff88816284cd00 of 4 bytes by interrupt on cpu 0: can_can_gw_rcv+0x7cb/0x7e0 net/can/gw.c:564 deliver net/can/af_can.c:573 [inline] can_rcv_filter+0xbf/0x4c0 net/can/af_can.c:600 can_receive+0x182/0x1f0 net/can/af_can.c:664 can_rcv+0xe7/0x180 net/can/af_can.c:688 __netif_receive_skb_one_core net/core/dev.c:5828 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5941 process_backlog+0x22e/0x440 net/core/dev.c:6289 __napi_poll+0x63/0x3c0 net/core/dev.c:7106 napi_poll net/core/dev.c:7175 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:7297 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 0xffff88816284cd00 of 4 bytes by interrupt on cpu 1: can_can_gw_rcv+0x7cb/0x7e0 net/can/gw.c:564 deliver net/can/af_can.c:573 [inline] can_rcv_filter+0xbf/0x4c0 net/can/af_can.c:600 can_receive+0x182/0x1f0 net/can/af_can.c:664 can_rcv+0xe7/0x180 net/can/af_can.c:688 __netif_receive_skb_one_core net/core/dev.c:5828 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5941 process_backlog+0x22e/0x440 net/core/dev.c:6289 __napi_poll+0x63/0x3c0 net/core/dev.c:7106 napi_poll net/core/dev.c:7175 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:7297 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: 0x00153056 -> 0x00153057 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 23 Comm: ksoftirqd/1 Not tainted 6.14.0-rc2-syzkaller-00390-g224e74511041 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 ================================================================== IPVS: sh: UDP 224.0.0.2:0 - no destination available ================================================================== BUG: KCSAN: data-race in can_receive / can_receive read-write to 0xffff88811765f298 of 8 bytes by interrupt on cpu 0: can_receive+0x1b6/0x1f0 net/can/af_can.c:672 can_rcv+0xe7/0x180 net/can/af_can.c:688 __netif_receive_skb_one_core net/core/dev.c:5828 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5941 process_backlog+0x22e/0x440 net/core/dev.c:6289 __napi_poll+0x63/0x3c0 net/core/dev.c:7106 napi_poll net/core/dev.c:7175 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:7297 handle_softirqs+0xbf/0x280 kernel/softirq.c:561 do_softirq+0x5e/0x90 kernel/softirq.c:462 __local_bh_enable_ip+0x6e/0x70 kernel/softirq.c:389 __raw_write_unlock_bh include/linux/rwlock_api_smp.h:281 [inline] _raw_write_unlock_bh+0x1f/0x30 kernel/locking/spinlock.c:366 neigh_periodic_work+0x605/0x6b0 net/core/neighbour.c:968 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0x4db/0xa20 kernel/workqueue.c:3317 worker_thread+0x51d/0x6f0 kernel/workqueue.c:3398 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 0xffff88811765f298 of 8 bytes by interrupt on cpu 1: can_receive+0x1b6/0x1f0 net/can/af_can.c:672 can_rcv+0xe7/0x180 net/can/af_can.c:688 __netif_receive_skb_one_core net/core/dev.c:5828 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5941 process_backlog+0x22e/0x440 net/core/dev.c:6289 __napi_poll+0x63/0x3c0 net/core/dev.c:7106 napi_poll net/core/dev.c:7175 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:7297 handle_softirqs+0xbf/0x280 kernel/softirq.c:561 do_softirq+0x5e/0x90 kernel/softirq.c:462 __local_bh_enable_ip+0x6e/0x70 kernel/softirq.c:389 local_bh_enable include/linux/bottom_half.h:33 [inline] update_defense_level+0x575/0x5b0 net/netfilter/ipvs/ip_vs_ctl.c:210 defense_work_handler+0x1f/0x80 net/netfilter/ipvs/ip_vs_ctl.c:235 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0x4db/0xa20 kernel/workqueue.c:3317 worker_thread+0x51d/0x6f0 kernel/workqueue.c:3398 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: 0x000000000015288a -> 0x000000000015288b Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 29417 Comm: kworker/1:7 Not tainted 6.14.0-rc2-syzkaller-00390-g224e74511041 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Workqueue: events_long defense_work_handler ================================================================== ================================================================== BUG: KCSAN: data-race in can_receive / can_receive read-write to 0xffff88811765f2e8 of 8 bytes by interrupt on cpu 0: can_receive+0x62/0x1f0 net/can/af_can.c:651 can_rcv+0xe7/0x180 net/can/af_can.c:688 __netif_receive_skb_one_core net/core/dev.c:5828 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5941 process_backlog+0x22e/0x440 net/core/dev.c:6289 __napi_poll+0x63/0x3c0 net/core/dev.c:7106 napi_poll net/core/dev.c:7175 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:7297 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 0xffff88811765f2e8 of 8 bytes by interrupt on cpu 1: can_receive+0x62/0x1f0 net/can/af_can.c:651 can_rcv+0xe7/0x180 net/can/af_can.c:688 __netif_receive_skb_one_core net/core/dev.c:5828 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5941 process_backlog+0x22e/0x440 net/core/dev.c:6289 __napi_poll+0x63/0x3c0 net/core/dev.c:7106 napi_poll net/core/dev.c:7175 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:7297 handle_softirqs+0xbf/0x280 kernel/softirq.c:561 do_softirq+0x5e/0x90 kernel/softirq.c:462 __local_bh_enable_ip+0x6e/0x70 kernel/softirq.c:389 __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+0x3db/0xad0 net/batman-adv/network-coding.c:720 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0x4db/0xa20 kernel/workqueue.c:3317 worker_thread+0x51d/0x6f0 kernel/workqueue.c:3398 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: 0x0000000000002b29 -> 0x0000000000002b2a Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 24552 Comm: kworker/u8:4 Not tainted 6.14.0-rc2-syzkaller-00390-g224e74511041 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Workqueue: bat_events batadv_nc_worker ================================================================== IPVS: sh: UDP 224.0.0.2:0 - no destination available ================================================================== BUG: KCSAN: data-race in can_rcv_filter / can_rcv_filter read-write to 0xffff8881035fd298 of 8 bytes by interrupt on cpu 0: deliver net/can/af_can.c:574 [inline] can_rcv_filter+0xd1/0x4c0 net/can/af_can.c:600 can_receive+0x182/0x1f0 net/can/af_can.c:664 can_rcv+0xe7/0x180 net/can/af_can.c:688 __netif_receive_skb_one_core net/core/dev.c:5828 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5941 process_backlog+0x22e/0x440 net/core/dev.c:6289 __napi_poll+0x63/0x3c0 net/core/dev.c:7106 napi_poll net/core/dev.c:7175 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:7297 handle_softirqs+0xbf/0x280 kernel/softirq.c:561 do_softirq+0x5e/0x90 kernel/softirq.c:462 __local_bh_enable_ip+0x6e/0x70 kernel/softirq.c:389 __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] addrconf_ifdown+0x3b7/0xed0 net/ipv6/addrconf.c:3903 addrconf_notify+0x2ff/0x950 notifier_call_chain kernel/notifier.c:85 [inline] raw_notifier_call_chain+0x6f/0x1d0 kernel/notifier.c:453 call_netdevice_notifiers_info+0xae/0x100 net/core/dev.c:2141 call_netdevice_notifiers_extack net/core/dev.c:2179 [inline] call_netdevice_notifiers net/core/dev.c:2193 [inline] unregister_netdevice_many_notify+0x98a/0x1280 net/core/dev.c:11802 unregister_netdevice_many net/core/dev.c:11866 [inline] unregister_netdevice_queue+0x1f4/0x220 net/core/dev.c:11736 unregister_netdevice include/linux/netdevice.h:3335 [inline] nsim_destroy+0xbd/0x330 drivers/net/netdevsim/netdev.c:1021 __nsim_dev_port_del+0xcd/0x100 drivers/net/netdevsim/dev.c:1428 nsim_dev_port_del_all drivers/net/netdevsim/dev.c:1440 [inline] nsim_dev_reload_destroy+0x1a6/0x2d0 drivers/net/netdevsim/dev.c:1661 nsim_dev_reload_down+0x77/0xa0 drivers/net/netdevsim/dev.c:968 devlink_reload+0xab/0x5a0 net/devlink/dev.c:461 devlink_pernet_pre_exit+0xd7/0x220 net/devlink/core.c:509 ops_pre_exit_list net/core/net_namespace.c:162 [inline] cleanup_net+0x34e/0x890 net/core/net_namespace.c:632 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0x4db/0xa20 kernel/workqueue.c:3317 worker_thread+0x51d/0x6f0 kernel/workqueue.c:3398 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 0xffff8881035fd298 of 8 bytes by interrupt on cpu 1: deliver net/can/af_can.c:574 [inline] can_rcv_filter+0xd1/0x4c0 net/can/af_can.c:600 can_receive+0x182/0x1f0 net/can/af_can.c:664 can_rcv+0xe7/0x180 net/can/af_can.c:688 __netif_receive_skb_one_core net/core/dev.c:5828 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5941 process_backlog+0x22e/0x440 net/core/dev.c:6289 __napi_poll+0x63/0x3c0 net/core/dev.c:7106 napi_poll net/core/dev.c:7175 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:7297 handle_softirqs+0xbf/0x280 kernel/softirq.c:561 do_softirq+0x5e/0x90 kernel/softirq.c:462 __local_bh_enable_ip+0x6e/0x70 kernel/softirq.c:389 __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] nsim_dev_trap_report drivers/net/netdevsim/dev.c:820 [inline] nsim_dev_trap_report_work+0x522/0x620 drivers/net/netdevsim/dev.c:851 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0x4db/0xa20 kernel/workqueue.c:3317 worker_thread+0x51d/0x6f0 kernel/workqueue.c:3398 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: 0x000000000016c391 -> 0x000000000016c392 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 3767 Comm: kworker/u8:18 Not tainted 6.14.0-rc2-syzkaller-00390-g224e74511041 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Workqueue: events_unbound nsim_dev_trap_report_work ================================================================== ================================================================== BUG: KCSAN: data-race in can_send / can_send read-write to 0xffff88811765f290 of 8 bytes by interrupt on cpu 0: can_send+0x5a2/0x6d0 net/can/af_can.c:290 can_can_gw_rcv+0x77d/0x7e0 net/can/gw.c:561 deliver net/can/af_can.c:573 [inline] can_rcv_filter+0xbf/0x4c0 net/can/af_can.c:600 can_receive+0x182/0x1f0 net/can/af_can.c:664 can_rcv+0xe7/0x180 net/can/af_can.c:688 __netif_receive_skb_one_core net/core/dev.c:5828 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5941 process_backlog+0x22e/0x440 net/core/dev.c:6289 __napi_poll+0x63/0x3c0 net/core/dev.c:7106 napi_poll net/core/dev.c:7175 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:7297 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 0xffff88811765f290 of 8 bytes by interrupt on cpu 1: can_send+0x5a2/0x6d0 net/can/af_can.c:290 can_can_gw_rcv+0x77d/0x7e0 net/can/gw.c:561 deliver net/can/af_can.c:573 [inline] can_rcv_filter+0xbf/0x4c0 net/can/af_can.c:600 can_receive+0x182/0x1f0 net/can/af_can.c:664 can_rcv+0xe7/0x180 net/can/af_can.c:688 __netif_receive_skb_one_core net/core/dev.c:5828 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5941 process_backlog+0x22e/0x440 net/core/dev.c:6289 __napi_poll+0x63/0x3c0 net/core/dev.c:7106 napi_poll net/core/dev.c:7175 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:7297 handle_softirqs+0xbf/0x280 kernel/softirq.c:561 do_softirq+0x5e/0x90 kernel/softirq.c:462 __local_bh_enable_ip+0x6e/0x70 kernel/softirq.c:389 __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_bla_purge_backbone_gw+0x275/0x2c0 net/batman-adv/bridge_loop_avoidance.c:1259 batadv_bla_periodic_work+0x130/0x5a0 net/batman-adv/bridge_loop_avoidance.c:1445 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0x4db/0xa20 kernel/workqueue.c:3317 worker_thread+0x51d/0x6f0 kernel/workqueue.c:3398 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: 0x00000000002d4f9c -> 0x00000000002d4f9d Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 24552 Comm: kworker/u8:4 Not tainted 6.14.0-rc2-syzkaller-00390-g224e74511041 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Workqueue: bat_events batadv_bla_periodic_work ================================================================== IPVS: sh: UDP 224.0.0.2:0 - no destination available ================================================================== BUG: KCSAN: data-race in can_receive / can_receive read-write to 0xffff88811765f288 of 8 bytes by interrupt on cpu 0: can_receive+0x4e/0x1f0 net/can/af_can.c:650 can_rcv+0xe7/0x180 net/can/af_can.c:688 __netif_receive_skb_one_core net/core/dev.c:5828 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5941 process_backlog+0x22e/0x440 net/core/dev.c:6289 __napi_poll+0x63/0x3c0 net/core/dev.c:7106 napi_poll net/core/dev.c:7175 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:7297 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 0xffff88811765f288 of 8 bytes by interrupt on cpu 1: can_receive+0x4e/0x1f0 net/can/af_can.c:650 can_rcv+0xe7/0x180 net/can/af_can.c:688 __netif_receive_skb_one_core net/core/dev.c:5828 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5941 process_backlog+0x22e/0x440 net/core/dev.c:6289 __napi_poll+0x63/0x3c0 net/core/dev.c:7106