================================================================== BUG: KCSAN: data-race in can_rcv_filter / can_rcv_filter read-write to 0xffff888101eff338 of 8 bytes by interrupt on cpu 0: deliver net/can/af_can.c:573 [inline] can_rcv_filter+0xd1/0x4c0 net/can/af_can.c:599 can_receive+0x182/0x1f0 net/can/af_can.c:663 can_rcv+0xe7/0x180 net/can/af_can.c:687 __netif_receive_skb_one_core net/core/dev.c:5538 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5652 process_backlog+0x21f/0x380 net/core/dev.c:5981 __napi_poll+0x63/0x3c0 net/core/dev.c:6632 napi_poll net/core/dev.c:6701 [inline] net_rx_action+0x324/0x720 net/core/dev.c:6816 __do_softirq+0xc8/0x285 kernel/softirq.c:554 do_softirq+0x5e/0x90 kernel/softirq.c:455 __local_bh_enable_ip+0x6e/0x70 kernel/softirq.c:382 tun_rx_batched+0x3de/0x410 tun_get_user+0x1dba/0x23a0 drivers/net/tun.c:2002 tun_chr_write_iter+0x18e/0x240 drivers/net/tun.c:2048 call_write_iter include/linux/fs.h:2110 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x771/0x8e0 fs/read_write.c:590 ksys_write+0xeb/0x1b0 fs/read_write.c:643 __do_sys_write fs/read_write.c:655 [inline] __se_sys_write fs/read_write.c:652 [inline] __x64_sys_write+0x42/0x50 fs/read_write.c:652 do_syscall_64+0xd3/0x1d0 entry_SYSCALL_64_after_hwframe+0x72/0x7a read-write to 0xffff888101eff338 of 8 bytes by interrupt on cpu 1: deliver net/can/af_can.c:573 [inline] can_rcv_filter+0xd1/0x4c0 net/can/af_can.c:599 can_receive+0x182/0x1f0 net/can/af_can.c:663 can_rcv+0xe7/0x180 net/can/af_can.c:687 __netif_receive_skb_one_core net/core/dev.c:5538 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5652 process_backlog+0x21f/0x380 net/core/dev.c:5981 __napi_poll+0x63/0x3c0 net/core/dev.c:6632 napi_poll net/core/dev.c:6701 [inline] net_rx_action+0x324/0x720 net/core/dev.c:6816 __do_softirq+0xc8/0x285 kernel/softirq.c:554 run_ksoftirqd+0x17/0x30 kernel/softirq.c:924 smpboot_thread_fn+0x31c/0x4c0 kernel/smpboot.c:164 kthread+0x1d1/0x210 kernel/kthread.c:388 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 value changed: 0x0000000000f72ba6 -> 0x0000000000f72ba7 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 22 Comm: ksoftirqd/1 Tainted: G W 6.9.0-rc3-syzkaller-00011-g20cb38a7af88 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 ================================================================== ================================================================== BUG: KCSAN: data-race in can_receive / can_receive read-write to 0xffff888117e87fe8 of 8 bytes by interrupt on cpu 0: can_receive+0x62/0x1f0 net/can/af_can.c:650 can_rcv+0xe7/0x180 net/can/af_can.c:687 __netif_receive_skb_one_core net/core/dev.c:5538 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5652 process_backlog+0x21f/0x380 net/core/dev.c:5981 __napi_poll+0x63/0x3c0 net/core/dev.c:6632 napi_poll net/core/dev.c:6701 [inline] net_rx_action+0x324/0x720 net/core/dev.c:6816 __do_softirq+0xc8/0x285 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] nsim_dev_trap_report drivers/net/netdevsim/dev.c:820 [inline] nsim_dev_trap_report_work+0x4d5/0x5b0 drivers/net/netdevsim/dev.c:850 process_one_work kernel/workqueue.c:3254 [inline] process_scheduled_works+0x465/0x990 kernel/workqueue.c:3335 worker_thread+0x526/0x730 kernel/workqueue.c:3416 kthread+0x1d1/0x210 kernel/kthread.c:388 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 read-write to 0xffff888117e87fe8 of 8 bytes by interrupt on cpu 1: can_receive+0x62/0x1f0 net/can/af_can.c:650 can_rcv+0xe7/0x180 net/can/af_can.c:687 __netif_receive_skb_one_core net/core/dev.c:5538 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5652 process_backlog+0x21f/0x380 net/core/dev.c:5981 __napi_poll+0x63/0x3c0 net/core/dev.c:6632 napi_poll net/core/dev.c:6701 [inline] net_rx_action+0x324/0x720 net/core/dev.c:6816 __do_softirq+0xc8/0x285 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] lock_sock_nested+0x10f/0x140 net/core/sock.c:3542 lock_sock include/net/sock.h:1671 [inline] tcp_close+0x1b/0xc0 net/ipv4/tcp.c:2931 inet_release+0xce/0xf0 net/ipv4/af_inet.c:437 __sock_release net/socket.c:659 [inline] sock_close+0x68/0x150 net/socket.c:1421 __fput+0x2c1/0x660 fs/file_table.c:422 __fput_sync+0x44/0x60 fs/file_table.c:507 __do_sys_close fs/open.c:1556 [inline] __se_sys_close+0x101/0x1b0 fs/open.c:1541 __x64_sys_close+0x1f/0x30 fs/open.c:1541 do_syscall_64+0xd3/0x1d0 entry_SYSCALL_64_after_hwframe+0x72/0x7a value changed: 0x00000000000079c7 -> 0x00000000000079c8 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 16758 Comm: syz-executor.4 Tainted: G W 6.9.0-rc3-syzkaller-00011-g20cb38a7af88 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 ================================================================== ================================================================== BUG: KCSAN: data-race in can_receive / can_receive read-write to 0xffff888117e87fe8 of 8 bytes by interrupt on cpu 0: can_receive+0x62/0x1f0 net/can/af_can.c:650 can_rcv+0xe7/0x180 net/can/af_can.c:687 __netif_receive_skb_one_core net/core/dev.c:5538 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5652 process_backlog+0x21f/0x380 net/core/dev.c:5981 __napi_poll+0x63/0x3c0 net/core/dev.c:6632 napi_poll net/core/dev.c:6701 [inline] net_rx_action+0x324/0x720 net/core/dev.c:6816 __do_softirq+0xc8/0x285 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] nsim_dev_trap_report drivers/net/netdevsim/dev.c:820 [inline] nsim_dev_trap_report_work+0x4d5/0x5b0 drivers/net/netdevsim/dev.c:850 process_one_work kernel/workqueue.c:3254 [inline] process_scheduled_works+0x465/0x990 kernel/workqueue.c:3335 worker_thread+0x526/0x730 kernel/workqueue.c:3416 kthread+0x1d1/0x210 kernel/kthread.c:388 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 read-write to 0xffff888117e87fe8 of 8 bytes by interrupt on cpu 1: can_receive+0x62/0x1f0 net/can/af_can.c:650 can_rcv+0xe7/0x180 net/can/af_can.c:687 __netif_receive_skb_one_core net/core/dev.c:5538 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5652 process_backlog+0x21f/0x380 net/core/dev.c:5981 __napi_poll+0x63/0x3c0 net/core/dev.c:6632 napi_poll net/core/dev.c:6701 [inline] net_rx_action+0x324/0x720 net/core/dev.c:6816 __do_softirq+0xc8/0x285 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] lock_sock_nested+0x10f/0x140 net/core/sock.c:3542 lock_sock include/net/sock.h:1671 [inline] tcp_sendmsg+0x22/0x50 net/ipv4/tcp.c:1341 inet_sendmsg+0x77/0xd0 net/ipv4/af_inet.c:851 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x102/0x180 net/socket.c:745 sock_write_iter+0x164/0x1b0 net/socket.c:1160 call_write_iter include/linux/fs.h:2110 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x771/0x8e0 fs/read_write.c:590 ksys_write+0xeb/0x1b0 fs/read_write.c:643 __do_sys_write fs/read_write.c:655 [inline] __se_sys_write fs/read_write.c:652 [inline] __x64_sys_write+0x42/0x50 fs/read_write.c:652 do_syscall_64+0xd3/0x1d0 entry_SYSCALL_64_after_hwframe+0x72/0x7a value changed: 0x000000000000500c -> 0x000000000000500d Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 3087 Comm: syz-fuzzer Tainted: G W 6.9.0-rc3-syzkaller-00011-g20cb38a7af88 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 ================================================================== ================================================================== BUG: KCSAN: data-race in can_receive / can_receive read-write to 0xffff888117e87ff8 of 8 bytes by interrupt on cpu 0: can_receive+0x1ca/0x1f0 net/can/af_can.c:672 can_rcv+0xe7/0x180 net/can/af_can.c:687 __netif_receive_skb_one_core net/core/dev.c:5538 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5652 process_backlog+0x21f/0x380 net/core/dev.c:5981 __napi_poll+0x63/0x3c0 net/core/dev.c:6632 napi_poll net/core/dev.c:6701 [inline] net_rx_action+0x324/0x720 net/core/dev.c:6816 __do_softirq+0xc8/0x285 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+0x21d/0x270 net/batman-adv/network-coding.c:471 batadv_nc_worker+0x3db/0xac0 net/batman-adv/network-coding.c:720 process_one_work kernel/workqueue.c:3254 [inline] process_scheduled_works+0x465/0x990 kernel/workqueue.c:3335 worker_thread+0x526/0x730 kernel/workqueue.c:3416 kthread+0x1d1/0x210 kernel/kthread.c:388 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 read-write to 0xffff888117e87ff8 of 8 bytes by interrupt on cpu 1: can_receive+0x1ca/0x1f0 net/can/af_can.c:672 can_rcv+0xe7/0x180 net/can/af_can.c:687 __netif_receive_skb_one_core net/core/dev.c:5538 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5652 process_backlog+0x21f/0x380 net/core/dev.c:5981 __napi_poll+0x63/0x3c0 net/core/dev.c:6632 napi_poll net/core/dev.c:6701 [inline] net_rx_action+0x324/0x720 net/core/dev.c:6816 __do_softirq+0xc8/0x285 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] release_sock+0x117/0x150 net/core/sock.c:3559 sockopt_release_sock+0x42/0x50 net/core/sock.c:1070 do_ip_getsockopt+0xcb4/0x11a0 net/ipv4/ip_sockglue.c:1732 ip_getsockopt+0x5c/0x170 net/ipv4/ip_sockglue.c:1765 tcp_getsockopt+0xaa/0xe0 net/ipv4/tcp.c:4375 sock_common_getsockopt+0x5b/0x70 net/core/sock.c:3700 do_sock_getsockopt+0x121/0x1a0 net/socket.c:2373 __sys_getsockopt+0x19a/0x210 net/socket.c:2402 __do_sys_getsockopt net/socket.c:2412 [inline] __se_sys_getsockopt net/socket.c:2409 [inline] __x64_sys_getsockopt+0x66/0x80 net/socket.c:2409 do_syscall_64+0xd3/0x1d0 entry_SYSCALL_64_after_hwframe+0x72/0x7a value changed: 0x0000000000007629 -> 0x000000000000762a Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 16758 Comm: syz-executor.4 Tainted: G W 6.9.0-rc3-syzkaller-00011-g20cb38a7af88 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 ================================================================== ================================================================== BUG: KCSAN: data-race in can_receive / can_receive read-write to 0xffff888117e87f88 of 8 bytes by interrupt on cpu 0: can_receive+0x4e/0x1f0 net/can/af_can.c:649 can_rcv+0xe7/0x180 net/can/af_can.c:687 __netif_receive_skb_one_core net/core/dev.c:5538 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5652 process_backlog+0x21f/0x380 net/core/dev.c:5981 __napi_poll+0x63/0x3c0 net/core/dev.c:6632 napi_poll net/core/dev.c:6701 [inline] net_rx_action+0x324/0x720 net/core/dev.c:6816 __do_softirq+0xc8/0x285 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:851 [inline] keep_key_fresh drivers/net/wireguard/send.c:135 [inline] wg_packet_create_data_done drivers/net/wireguard/send.c:259 [inline] wg_packet_tx_worker+0x294/0x360 drivers/net/wireguard/send.c:276 process_one_work kernel/workqueue.c:3254 [inline] process_scheduled_works+0x465/0x990 kernel/workqueue.c:3335 worker_thread+0x526/0x730 kernel/workqueue.c:3416 kthread+0x1d1/0x210 kernel/kthread.c:388 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 read-write to 0xffff888117e87f88 of 8 bytes by interrupt on cpu 1: can_receive+0x4e/0x1f0 net/can/af_can.c:649 can_rcv+0xe7/0x180 net/can/af_can.c:687 __netif_receive_skb_one_core net/core/dev.c:5538 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5652 process_backlog+0x21f/0x380 net/core/dev.c:5981 __napi_poll+0x63/0x3c0 net/core/dev.c:6632 napi_poll net/core/dev.c:6701 [inline] net_rx_action+0x324/0x720 net/core/dev.c:6816 __do_softirq+0xc8/0x285 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+0x21d/0x270 net/batman-adv/network-coding.c:471 batadv_nc_worker+0x3db/0xac0 net/batman-adv/network-coding.c:720 process_one_work kernel/workqueue.c:3254 [inline] process_scheduled_works+0x465/0x990 kernel/workqueue.c:3335 worker_thread+0x526/0x730 kernel/workqueue.c:3416 kthread+0x1d1/0x210 kernel/kthread.c:388 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 value changed: 0x0000000001018954 -> 0x0000000001018956 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 54 Comm: kworker/u8:4 Tainted: G W 6.9.0-rc3-syzkaller-00011-g20cb38a7af88 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Workqueue: bat_events batadv_nc_worker ================================================================== ================================================================== BUG: KCSAN: data-race in can_can_gw_rcv / can_can_gw_rcv read-write to 0xffff88810e198020 of 4 bytes by interrupt on cpu 0: can_can_gw_rcv+0x7c9/0x7e0 net/can/gw.c:564 deliver net/can/af_can.c:572 [inline] can_rcv_filter+0xbf/0x4c0 net/can/af_can.c:599 can_receive+0x182/0x1f0 net/can/af_can.c:663 can_rcv+0xe7/0x180 net/can/af_can.c:687 __netif_receive_skb_one_core net/core/dev.c:5538 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5652 process_backlog+0x21f/0x380 net/core/dev.c:5981 __napi_poll+0x63/0x3c0 net/core/dev.c:6632 napi_poll net/core/dev.c:6701 [inline] net_rx_action+0x324/0x720 net/core/dev.c:6816 __do_softirq+0xc8/0x285 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] release_sock+0x117/0x150 net/core/sock.c:3559 sockopt_release_sock+0x42/0x50 net/core/sock.c:1070 do_ip_getsockopt+0xcb4/0x11a0 net/ipv4/ip_sockglue.c:1732 ip_getsockopt+0x5c/0x170 net/ipv4/ip_sockglue.c:1765 tcp_getsockopt+0xaa/0xe0 net/ipv4/tcp.c:4375 sock_common_getsockopt+0x5b/0x70 net/core/sock.c:3700 do_sock_getsockopt+0x121/0x1a0 net/socket.c:2373 __sys_getsockopt+0x19a/0x210 net/socket.c:2402 __do_sys_getsockopt net/socket.c:2412 [inline] __se_sys_getsockopt net/socket.c:2409 [inline] __x64_sys_getsockopt+0x66/0x80 net/socket.c:2409 do_syscall_64+0xd3/0x1d0 entry_SYSCALL_64_after_hwframe+0x72/0x7a read-write to 0xffff88810e198020 of 4 bytes by interrupt on cpu 1: can_can_gw_rcv+0x7c9/0x7e0 net/can/gw.c:564 deliver net/can/af_can.c:572 [inline] can_rcv_filter+0xbf/0x4c0 net/can/af_can.c:599 can_receive+0x182/0x1f0 net/can/af_can.c:663 can_rcv+0xe7/0x180 net/can/af_can.c:687 __netif_receive_skb_one_core net/core/dev.c:5538 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5652 process_backlog+0x21f/0x380 net/core/dev.c:5981 __napi_poll+0x63/0x3c0 net/core/dev.c:6632 napi_poll net/core/dev.c:6701 [inline] net_rx_action+0x324/0x720 net/core/dev.c:6816 __do_softirq+0xc8/0x285 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+0x21d/0x270 net/batman-adv/network-coding.c:471 batadv_nc_worker+0x3db/0xac0 net/batman-adv/network-coding.c:720 process_one_work kernel/workqueue.c:3254 [inline] process_scheduled_works+0x465/0x990 kernel/workqueue.c:3335 worker_thread+0x526/0x730 kernel/workqueue.c:3416 kthread+0x1d1/0x210 kernel/kthread.c:388 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 value changed: 0x01023aff -> 0x01023b00 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 54 Comm: kworker/u8:4 Tainted: G W 6.9.0-rc3-syzkaller-00011-g20cb38a7af88 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Workqueue: bat_events batadv_nc_worker ================================================================== ================================================================== BUG: KCSAN: data-race in can_receive / can_receive read-write to 0xffff888117e87f98 of 8 bytes by interrupt on cpu 0: can_receive+0x1b6/0x1f0 net/can/af_can.c:671 can_rcv+0xe7/0x180 net/can/af_can.c:687 __netif_receive_skb_one_core net/core/dev.c:5538 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5652 process_backlog+0x21f/0x380 net/core/dev.c:5981 __napi_poll+0x63/0x3c0 net/core/dev.c:6632 napi_poll net/core/dev.c:6701 [inline] net_rx_action+0x324/0x720 net/core/dev.c:6816 __do_softirq+0xc8/0x285 kernel/softirq.c:554 run_ksoftirqd+0x17/0x30 kernel/softirq.c:924 smpboot_thread_fn+0x31c/0x4c0 kernel/smpboot.c:164 kthread+0x1d1/0x210 kernel/kthread.c:388 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 read-write to 0xffff888117e87f98 of 8 bytes by interrupt on cpu 1: can_receive+0x1b6/0x1f0 net/can/af_can.c:671 can_rcv+0xe7/0x180 net/can/af_can.c:687 __netif_receive_skb_one_core net/core/dev.c:5538 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5652 process_backlog+0x21f/0x380 net/core/dev.c:5981 __napi_poll+0x63/0x3c0 net/core/dev.c:6632 napi_poll net/core/dev.c:6701 [inline] net_rx_action+0x324/0x720 net/core/dev.c:6816 __do_softirq+0xc8/0x285 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] ptr_ring_consume_bh include/linux/ptr_ring.h:367 [inline] wg_packet_decrypt_worker+0x6ac/0x6f0 drivers/net/wireguard/receive.c:499 process_one_work kernel/workqueue.c:3254 [inline] process_scheduled_works+0x465/0x990 kernel/workqueue.c:3335 worker_thread+0x526/0x730 kernel/workqueue.c:3416 kthread+0x1d1/0x210 kernel/kthread.c:388 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 value changed: 0x0000000001035c5d -> 0x0000000001035c5e Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 3170 Comm: kworker/1:4 Tainted: G W 6.9.0-rc3-syzkaller-00011-g20cb38a7af88 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Workqueue: wg-crypt-wg1 wg_packet_decrypt_worker ================================================================== ================================================================== BUG: KCSAN: data-race in can_send / can_send read-write to 0xffff888117e87f90 of 8 bytes by interrupt on cpu 0: can_send+0x55c/0x5d0 net/can/af_can.c:289 can_can_gw_rcv+0x77b/0x7e0 net/can/gw.c:561 deliver net/can/af_can.c:572 [inline] can_rcv_filter+0xbf/0x4c0 net/can/af_can.c:599 can_receive+0x182/0x1f0 net/can/af_can.c:663 can_rcv+0xe7/0x180 net/can/af_can.c:687 __netif_receive_skb_one_core net/core/dev.c:5538 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5652 process_backlog+0x21f/0x380 net/core/dev.c:5981 __napi_poll+0x63/0x3c0 net/core/dev.c:6632 napi_poll net/core/dev.c:6701 [inline] net_rx_action+0x324/0x720 net/core/dev.c:6816 __do_softirq+0xc8/0x285 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] nsim_dev_trap_report drivers/net/netdevsim/dev.c:820 [inline] nsim_dev_trap_report_work+0x4d5/0x5b0 drivers/net/netdevsim/dev.c:850 process_one_work kernel/workqueue.c:3254 [inline] process_scheduled_works+0x465/0x990 kernel/workqueue.c:3335 worker_thread+0x526/0x730 kernel/workqueue.c:3416 kthread+0x1d1/0x210 kernel/kthread.c:388 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 read-write to 0xffff888117e87f90 of 8 bytes by interrupt on cpu 1: can_send+0x55c/0x5d0 net/can/af_can.c:289 can_can_gw_rcv+0x77b/0x7e0 net/can/gw.c:561 deliver net/can/af_can.c:572 [inline] can_rcv_filter+0xbf/0x4c0 net/can/af_can.c:599 can_receive+0x182/0x1f0 net/can/af_can.c:663 can_rcv+0xe7/0x180 net/can/af_can.c:687 __netif_receive_skb_one_core net/core/dev.c:5538 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5652 process_backlog+0x21f/0x380 net/core/dev.c:5981 __napi_poll+0x63/0x3c0 net/core/dev.c:6632 napi_poll net/core/dev.c:6701 [inline] net_rx_action+0x324/0x720 net/core/dev.c:6816 __do_softirq+0xc8/0x285 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:851 [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:3254 [inline] process_scheduled_works+0x465/0x990 kernel/workqueue.c:3335 worker_thread+0x526/0x730 kernel/workqueue.c:3416 kthread+0x1d1/0x210 kernel/kthread.c:388 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 value changed: 0x000000000103fb71 -> 0x000000000103fb72 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 3264 Comm: kworker/1:16 Tainted: G W 6.9.0-rc3-syzkaller-00011-g20cb38a7af88 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Workqueue: wg-crypt-wg0 wg_packet_tx_worker ================================================================== ================================================================== BUG: KCSAN: data-race in can_send / can_send read-write to 0xffff888117e87ff0 of 8 bytes by interrupt on cpu 0: can_send+0x570/0x5d0 net/can/af_can.c:290 can_can_gw_rcv+0x77b/0x7e0 net/can/gw.c:561 deliver net/can/af_can.c:572 [inline] can_rcv_filter+0xbf/0x4c0 net/can/af_can.c:599 can_receive+0x182/0x1f0 net/can/af_can.c:663 can_rcv+0xe7/0x180 net/can/af_can.c:687 __netif_receive_skb_one_core net/core/dev.c:5538 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5652 process_backlog+0x21f/0x380 net/core/dev.c:5981 __napi_poll+0x63/0x3c0 net/core/dev.c:6632 napi_poll net/core/dev.c:6701 [inline] net_rx_action+0x324/0x720 net/core/dev.c:6816 __do_softirq+0xc8/0x285 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] update_defense_level+0x5d5/0x610 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:3254 [inline] process_scheduled_works+0x465/0x990 kernel/workqueue.c:3335 worker_thread+0x526/0x730 kernel/workqueue.c:3416 kthread+0x1d1/0x210 kernel/kthread.c:388 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 read-write to 0xffff888117e87ff0 of 8 bytes by interrupt on cpu 1: can_send+0x570/0x5d0 net/can/af_can.c:290 can_can_gw_rcv+0x77b/0x7e0 net/can/gw.c:561 deliver net/can/af_can.c:572 [inline] can_rcv_filter+0xbf/0x4c0 net/can/af_can.c:599 can_receive+0x182/0x1f0 net/can/af_can.c:663 can_rcv+0xe7/0x180 net/can/af_can.c:687 __netif_receive_skb_one_core net/core/dev.c:5538 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5652 process_backlog+0x21f/0x380 net/core/dev.c:5981 __napi_poll+0x63/0x3c0 net/core/dev.c:6632 napi_poll net/core/dev.c:6701 [inline] net_rx_action+0x324/0x720 net/core/dev.c:6816 __do_softirq+0xc8/0x285 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_tt_local_purge+0x1a8/0x1f0 net/batman-adv/translation-table.c:1356 batadv_tt_purge+0x2b/0x630 net/batman-adv/translation-table.c:3560 process_one_work kernel/workqueue.c:3254 [inline] process_scheduled_works+0x465/0x990 kernel/workqueue.c:3335 worker_thread+0x526/0x730 kernel/workqueue.c:3416 kthread+0x1d1/0x210 kernel/kthread.c:388 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 value changed: 0x000000000001a17b -> 0x000000000001a17c Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 54 Comm: kworker/u8:4 Tainted: G W 6.9.0-rc3-syzkaller-00011-g20cb38a7af88 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Workqueue: bat_events batadv_tt_purge ================================================================== ================================================================== BUG: KCSAN: data-race in can_receive / can_receive read-write to 0xffff888117e87f88 of 8 bytes by interrupt on cpu 0: can_receive+0x4e/0x1f0 net/can/af_can.c:649 can_rcv+0xe7/0x180 net/can/af_can.c:687 __netif_receive_skb_one_core net/core/dev.c:5538 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5652 process_backlog+0x21f/0x380 net/core/dev.c:5981 __napi_poll+0x63/0x3c0 net/core/dev.c:6632 napi_poll net/core/dev.c:6701 [inline] net_rx_action+0x324/0x720 net/core/dev.c:6816 __do_softirq+0xc8/0x285 kernel/softirq.c:554 run_ksoftirqd+0x17/0x30 kernel/softirq.c:924 smpboot_thread_fn+0x31c/0x4c0 kernel/smpboot.c:164 kthread+0x1d1/0x210 kernel/kthread.c:388 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 read-write to 0xffff888117e87f88 of 8 bytes by interrupt on cpu 1: can_receive+0x4e/0x1f0 net/can/af_can.c:649 can_rcv+0xe7/0x180 net/can/af_can.c:687 __netif_receive_skb_one_core net/core/dev.c:5538 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5652 process_backlog+0x21f/0x380 net/core/dev.c:5981 __napi_poll+0x63/0x3c0 net/core/dev.c:6632 napi_poll net/core/dev.c:6701 [inline] net_rx_action+0x324/0x720 net/core/dev.c:6816 __do_softirq+0xc8/0x285 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_tt_local_purge+0x1a8/0x1f0 net/batman-adv/translation-table.c:1356 batadv_tt_purge+0x2b/0x630 net/batman-adv/translation-table.c:3560 process_one_work kernel/workqueue.c:3254 [inline] process_scheduled_works+0x465/0x990 kernel/workqueue.c:3335 worker_thread+0x526/0x730 kernel/workqueue.c:3416 kthread+0x1d1/0x210 kernel/kthread.c:388 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 value changed: 0x0000000001064c3b -> 0x0000000001064c3c Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 54 Comm: kworker/u8:4 Tainted: G W 6.9.0-rc3-syzkaller-00011-g20cb38a7af88 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Workqueue: bat_events batadv_tt_purge ================================================================== ================================================================== BUG: KCSAN: data-race in can_can_gw_rcv / can_can_gw_rcv read-write to 0xffff88810e198020 of 4 bytes by interrupt on cpu 0: can_can_gw_rcv+0x7c9/0x7e0 net/can/gw.c:564 deliver net/can/af_can.c:572 [inline] can_rcv_filter+0xbf/0x4c0 net/can/af_can.c:599 can_receive+0x182/0x1f0 net/can/af_can.c:663 can_rcv+0xe7/0x180 net/can/af_can.c:687 __netif_receive_skb_one_core net/core/dev.c:5538 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5652