================================================================== BUG: KCSAN: data-race in can_rcv_filter / can_rcv_filter read-write to 0xffff8881016fd4c8 of 8 bytes by interrupt on cpu 1: deliver net/can/af_can.c:574 [inline] can_rcv_filter+0x3a9/0x4c0 net/can/af_can.c:634 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+0x483/0x9a0 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 0xffff8881016fd4c8 of 8 bytes by interrupt on cpu 0: deliver net/can/af_can.c:574 [inline] can_rcv_filter+0x3a9/0x4c0 net/can/af_can.c:634 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 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+0x483/0x9a0 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: 0x000000000000093b -> 0x000000000000093c Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 3567 Comm: kworker/0:5 Not tainted 6.14.0-rc1-syzkaller-00026-gd009de7d5428 #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_can_gw_rcv / can_can_gw_rcv read-write to 0xffff8881316f8020 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 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] ptr_ring_consume_bh include/linux/ptr_ring.h:367 [inline] wg_packet_encrypt_worker+0x188/0xbb0 drivers/net/wireguard/send.c:293 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0x483/0x9a0 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 0xffff8881316f8020 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 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+0x483/0x9a0 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: 0x000db9de -> 0x000db9df Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 5678 Comm: kworker/u8:8 Not tainted 6.14.0-rc1-syzkaller-00026-gd009de7d5428 #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_can_gw_rcv / can_can_gw_rcv read-write to 0xffff88810e514020 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 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:2298 [inline] __sys_setsockopt+0x187/0x200 net/socket.c:2323 __do_sys_setsockopt net/socket.c:2329 [inline] __se_sys_setsockopt net/socket.c:2326 [inline] __x64_sys_setsockopt+0x66/0x80 net/socket.c:2326 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 0xffff88810e514020 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 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+0x483/0x9a0 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: 0x0004eab7 -> 0x0004eab8 Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 11 Comm: kworker/u8:0 Not tainted 6.14.0-rc1-syzkaller-00026-gd009de7d5428 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Workqueue: bat_events batadv_nc_worker ==================================================================