INFO: task kworker/1:1:51 blocked for more than 143 seconds. Not tainted 6.11.0-syzkaller-10610-geb5b0f9812ff #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:1 state:D stack:23184 pid:51 tgid:51 ppid:2 flags:0x00004000 Workqueue: events_power_efficient crda_timeout_work Call Trace: context_switch kernel/sched/core.c:5315 [inline] __schedule+0xed6/0x5920 kernel/sched/core.c:6675 __schedule_loop kernel/sched/core.c:6752 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6767 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6824 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752 crda_timeout_work+0x15/0x50 net/wireless/reg.c:540 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INFO: task kworker/u8:6:2905 blocked for more than 144 seconds. Not tainted 6.11.0-syzkaller-10610-geb5b0f9812ff #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u8:6 state:D stack:23184 pid:2905 tgid:2905 ppid:2 flags:0x00004000 Workqueue: events_unbound linkwatch_event Call Trace: context_switch kernel/sched/core.c:5315 [inline] __schedule+0xed6/0x5920 kernel/sched/core.c:6675 __schedule_loop kernel/sched/core.c:6752 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6767 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6824 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752 linkwatch_event+0x51/0xc0 net/core/link_watch.c:276 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INFO: task syz.1.352:6079 blocked for more than 144 seconds. Not tainted 6.11.0-syzkaller-10610-geb5b0f9812ff #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.1.352 state:D stack:25824 pid:6079 tgid:6079 ppid:5232 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5315 [inline] __schedule+0xed6/0x5920 kernel/sched/core.c:6675 __schedule_loop kernel/sched/core.c:6752 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6767 schedule_timeout+0x258/0x2a0 kernel/time/timer.c:2591 do_wait_for_common kernel/sched/completion.c:95 [inline] __wait_for_common+0x3e1/0x600 kernel/sched/completion.c:116 __flush_work+0x776/0xc30 kernel/workqueue.c:4217 flush_all_backlogs net/core/dev.c:6037 [inline] unregister_netdevice_many_notify+0x1643/0x1e40 net/core/dev.c:11380 unregister_netdevice_many net/core/dev.c:11461 [inline] unregister_netdevice_queue+0x307/0x3f0 net/core/dev.c:11335 unregister_netdevice include/linux/netdevice.h:3118 [inline] __tun_detach+0x11cc/0x14a0 drivers/net/tun.c:685 tun_detach drivers/net/tun.c:701 [inline] tun_chr_close+0xc2/0x230 drivers/net/tun.c:3517 __fput+0x3f6/0xb60 fs/file_table.c:431 task_work_run+0x14e/0x250 kernel/task_work.c:228 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x27b/0x2a0 kernel/entry/common.c:218 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f997257df39 RSP: 002b:00007fff329875a8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 000000000001c580 RCX: 00007f997257df39 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 00007f9972737a80 R08: 0000000000000001 R09: 00007fff3298789f R10: 00007f9972400000 R11: 0000000000000246 R12: 000000000001c60e R13: 00007fff329876b0 R14: 0000000000000032 R15: ffffffffffffffff INFO: task syz.2.363:6103 blocked for more than 145 seconds. Not tainted 6.11.0-syzkaller-10610-geb5b0f9812ff #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.363 state:D stack:28624 pid:6103 tgid:6102 ppid:5222 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5315 [inline] __schedule+0xed6/0x5920 kernel/sched/core.c:6675 __schedule_loop kernel/sched/core.c:6752 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6767 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6824 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752 addrconf_add_ifaddr+0x163/0x1f0 net/ipv6/addrconf.c:3166 inet6_ioctl+0x104/0x2b0 net/ipv6/af_inet6.c:582 sock_do_ioctl+0x116/0x280 net/socket.c:1228 sock_ioctl+0x228/0x6c0 net/socket.c:1347 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __x64_sys_ioctl+0x18f/0x220 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9caa37df39 RSP: 002b:00007f9cab15a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f9caa535f80 RCX: 00007f9caa37df39 RDX: 0000000020000640 RSI: 0000000000008916 RDI: 0000000000000003 RBP: 00007f9caa3f0216 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f9caa535f80 R15: 00007ffc0d1b0258 INFO: task syz.3.364:6106 blocked for more than 145 seconds. Not tainted 6.11.0-syzkaller-10610-geb5b0f9812ff #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.3.364 state:D stack:27600 pid:6106 tgid:6104 ppid:5220 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5315 [inline] __schedule+0xed6/0x5920 kernel/sched/core.c:6675 __schedule_loop kernel/sched/core.c:6752 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6767 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6824 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752 rtnl_lock net/core/rtnetlink.c:79 [inline] rtnl_dumpit+0x18f/0x1f0 net/core/rtnetlink.c:6505 netlink_dump+0x552/0xcc0 net/netlink/af_netlink.c:2325 __netlink_dump_start+0x6ca/0x970 net/netlink/af_netlink.c:2440 netlink_dump_start include/linux/netlink.h:339 [inline] rtnetlink_dump_start net/core/rtnetlink.c:6535 [inline] rtnetlink_rcv_msg+0xb44/0xea0 net/core/rtnetlink.c:6602 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2550 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] ____sys_sendmsg+0xaaf/0xc90 net/socket.c:2603 ___sys_sendmsg+0x135/0x1e0 net/socket.c:2657 __sys_sendmsg+0x117/0x1f0 net/socket.c:2686 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f43a937df39 RSP: 002b:00007f43aa0b9038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f43a9535f80 RCX: 00007f43a937df39 RDX: 0000000000000000 RSI: 0000000020000480 RDI: 0000000000000003 RBP: 00007f43a93f0216 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f43a9535f80 R15: 00007fff99a9f4d8 INFO: task syz.4.365:6107 blocked for more than 146 seconds. Not tainted 6.11.0-syzkaller-10610-geb5b0f9812ff #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.4.365 state:D stack:27248 pid:6107 tgid:6105 ppid:5218 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5315 [inline] __schedule+0xed6/0x5920 kernel/sched/core.c:6675 __schedule_loop kernel/sched/core.c:6752 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6767 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6824 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752 wg_set_device+0xce/0x13e0 drivers/net/wireguard/netlink.c:504 genl_family_rcv_msg_doit+0x202/0x2f0 net/netlink/genetlink.c:1115 genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0x565/0x800 net/netlink/genetlink.c:1210 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2550 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] ____sys_sendmsg+0xaaf/0xc90 net/socket.c:2603 ___sys_sendmsg+0x135/0x1e0 net/socket.c:2657 __sys_sendmsg+0x117/0x1f0 net/socket.c:2686 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa3e3b7df39 RSP: 002b:00007fa3e499b038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fa3e3d35f80 RCX: 00007fa3e3b7df39 RDX: 0000000000000000 RSI: 0000000020001040 RDI: 0000000000000003 RBP: 00007fa3e3bf0216 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fa3e3d35f80 R15: 00007ffd4efc0218 INFO: task syz.0.369:6117 blocked for more than 147 seconds. Not tainted 6.11.0-syzkaller-10610-geb5b0f9812ff #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.369 state:D stack:28544 pid:6117 tgid:6116 ppid:5226 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5315 [inline] __schedule+0xed6/0x5920 kernel/sched/core.c:6675 __schedule_loop kernel/sched/core.c:6752 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6767 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6824 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752 genl_lock net/netlink/genetlink.c:35 [inline] genl_op_lock net/netlink/genetlink.c:60 [inline] genl_op_lock net/netlink/genetlink.c:57 [inline] genl_rcv_msg+0x580/0x800 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2550 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] __sys_sendto+0x479/0x4d0 net/socket.c:2210 __do_sys_sendto net/socket.c:2222 [inline] __se_sys_sendto net/socket.c:2218 [inline] __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2218 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc3eeb7fdcc RSP: 002b:00007fc3ef8b8ec0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fc3ef8b8fc0 RCX: 00007fc3eeb7fdcc RDX: 0000000000000020 RSI: 00007fc3ef8b9010 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00007fc3ef8b8f14 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 R13: 00007fc3ef8b8f68 R14: 00007fc3ef8b9010 R15: 0000000000000000 INFO: task syz-executor:6120 blocked for more than 147 seconds. Not tainted 6.11.0-syzkaller-10610-geb5b0f9812ff #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:26112 pid:6120 tgid:6120 ppid:1 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5315 [inline] __schedule+0xed6/0x5920 kernel/sched/core.c:6675 __schedule_loop kernel/sched/core.c:6752 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6767 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6824 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752 rtnl_lock net/core/rtnetlink.c:79 [inline] rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6643 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2550 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] __sys_sendto+0x479/0x4d0 net/socket.c:2210 __do_sys_sendto net/socket.c:2222 [inline] __se_sys_sendto net/socket.c:2218 [inline] __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2218 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa39477fdcc RSP: 002b:00007ffd2302fa20 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fa395464620 RCX: 00007fa39477fdcc RDX: 0000000000000028 RSI: 00007fa395464670 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00007ffd2302fa74 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 R13: 0000000000000000 R14: 00007fa395464670 R15: 0000000000000000 INFO: task syz-executor:6127 blocked for more than 148 seconds. Not tainted 6.11.0-syzkaller-10610-geb5b0f9812ff #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:26112 pid:6127 tgid:6127 ppid:1 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5315 [inline] __schedule+0xed6/0x5920 kernel/sched/core.c:6675 __schedule_loop kernel/sched/core.c:6752 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6767 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6824 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752 rtnl_lock net/core/rtnetlink.c:79 [inline] rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6643 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2550 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] __sys_sendto+0x479/0x4d0 net/socket.c:2210 __do_sys_sendto net/socket.c:2222 [inline] __se_sys_sendto net/socket.c:2218 [inline] __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2218 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f793457fdcc RSP: 002b:00007ffe802536f0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f7935264620 RCX: 00007f793457fdcc RDX: 0000000000000028 RSI: 00007f7935264670 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00007ffe80253744 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 R13: 0000000000000000 R14: 00007f7935264670 R15: 0000000000000000 INFO: task syz-executor:6129 blocked for more than 148 seconds. Not tainted 6.11.0-syzkaller-10610-geb5b0f9812ff #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:26112 pid:6129 tgid:6129 ppid:1 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5315 [inline] __schedule+0xed6/0x5920 kernel/sched/core.c:6675 __schedule_loop kernel/sched/core.c:6752 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6767 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6824 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752 rtnl_lock net/core/rtnetlink.c:79 [inline] rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6643 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2550 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] __sys_sendto+0x479/0x4d0 net/socket.c:2210 __do_sys_sendto net/socket.c:2222 [inline] __se_sys_sendto net/socket.c:2218 [inline] __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2218 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb271d7fdcc RSP: 002b:00007ffdd2e47fb0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fb272a64620 RCX: 00007fb271d7fdcc RDX: 0000000000000028 RSI: 00007fb272a64670 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00007ffdd2e48004 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 R13: 0000000000000000 R14: 00007fb272a64670 R15: 0000000000000000 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings INFO: task syz-executor:6130 blocked for more than 149 seconds. Not tainted 6.11.0-syzkaller-10610-geb5b0f9812ff #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:26112 pid:6130 tgid:6130 ppid:1 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5315 [inline] __schedule+0xed6/0x5920 kernel/sched/core.c:6675 __schedule_loop kernel/sched/core.c:6752 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6767 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6824 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752 rtnl_lock net/core/rtnetlink.c:79 [inline] rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6643 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2550 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] __sys_sendto+0x479/0x4d0 net/socket.c:2210 __do_sys_sendto net/socket.c:2222 [inline] __se_sys_sendto net/socket.c:2218 [inline] __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2218 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f525e17fdcc RSP: 002b:00007ffcbcabcca0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f525ee64620 RCX: 00007f525e17fdcc RDX: 0000000000000028 RSI: 00007f525ee64670 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00007ffcbcabccf4 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 R13: 0000000000000000 R14: 00007f525ee64670 R15: 0000000000000000 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings INFO: task syz-executor:6135 blocked for more than 149 seconds. Not tainted 6.11.0-syzkaller-10610-geb5b0f9812ff #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:26112 pid:6135 tgid:6135 ppid:1 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5315 [inline] __schedule+0xed6/0x5920 kernel/sched/core.c:6675 __schedule_loop kernel/sched/core.c:6752 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6767 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6824 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752 rtnl_lock net/core/rtnetlink.c:79 [inline] rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6643 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2550 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] __sys_sendto+0x479/0x4d0 net/socket.c:2210 __do_sys_sendto net/socket.c:2222 [inline] __se_sys_sendto net/socket.c:2218 [inline] __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2218 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f967737fdcc RSP: 002b:00007ffc514806f0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f9678064620 RCX: 00007f967737fdcc RDX: 0000000000000028 RSI: 00007f9678064670 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00007ffc51480744 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 R13: 0000000000000000 R14: 00007f9678064670 R15: 0000000000000000 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings Showing all locks held in the system: 1 lock held by khungtaskd/30: #0: ffffffff8e1b8140 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] #0: ffffffff8e1b8140 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #0: ffffffff8e1b8140 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6701 3 locks held by kworker/1:1/51: #0: ffff88801b081948 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204 #1: ffffc90000bc7d80 ((crda_timeout).work){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205 #2: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: crda_timeout_work+0x15/0x50 net/wireless/reg.c:540 3 locks held by kworker/u8:6/2905: #0: ffff88801b089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204 #1: ffffc90009887d80 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205 #2: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0x51/0xc0 net/core/link_watch.c:276 3 locks held by kworker/u8:8/2970: #0: ffff88814bd19148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204 #1: ffffc90009857d80 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205 #2: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x12/0x30 net/ipv6/addrconf.c:4736 2 locks held by getty/4977: #0: ffff88802efef0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243 #1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfba/0x1480 drivers/tty/n_tty.c:2211 3 locks held by kworker/1:3/5224: #0: ffff88801b081948 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204 #1: ffffc90003da7d80 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205 #2: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: reg_check_chans_work+0x84/0x1130 net/wireless/reg.c:2480 6 locks held by kworker/0:6/5303: 2 locks held by syz.1.352/6079: #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:698 [inline] #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x38/0x230 drivers/net/tun.c:3517 #1: ffffffff8e05b950 (cpu_hotplug_lock){++++}-{0:0}, at: flush_all_backlogs net/core/dev.c:6021 [inline] #1: ffffffff8e05b950 (cpu_hotplug_lock){++++}-{0:0}, at: unregister_netdevice_many_notify+0x53b/0x1e40 net/core/dev.c:11380 1 lock held by syz.2.363/6103: #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_add_ifaddr+0x163/0x1f0 net/ipv6/addrconf.c:3166 2 locks held by syz.3.364/6106: #0: ffff88805eb636c8 (nlk_cb_mutex-ROUTE){+.+.}-{3:3}, at: __netlink_dump_start+0x154/0x970 net/netlink/af_netlink.c:2404 #1: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #1: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_dumpit+0x18f/0x1f0 net/core/rtnetlink.c:6505 3 locks held by syz.4.365/6107: #0: ffffffff8ff7e430 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8ff7e4e8 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8ff7e4e8 (genl_mutex){+.+.}-{3:3}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8ff7e4e8 (genl_mutex){+.+.}-{3:3}, at: genl_op_lock net/netlink/genetlink.c:57 [inline] #1: ffffffff8ff7e4e8 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x580/0x800 net/netlink/genetlink.c:1209 #2: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: wg_set_device+0xce/0x13e0 drivers/net/wireguard/netlink.c:504 2 locks held by syz.0.369/6117: #0: ffffffff8ff7e430 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8ff7e4e8 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8ff7e4e8 (genl_mutex){+.+.}-{3:3}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8ff7e4e8 (genl_mutex){+.+.}-{3:3}, at: genl_op_lock net/netlink/genetlink.c:57 [inline] #1: ffffffff8ff7e4e8 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x580/0x800 net/netlink/genetlink.c:1209 1 lock held by syz-executor/6120: #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6643 1 lock held by syz-executor/6127: #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6643 1 lock held by syz-executor/6129: #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6643 1 lock held by syz-executor/6130: #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6643 1 lock held by syz-executor/6135: #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6643 1 lock held by syz-executor/6142: #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6643 1 lock held by syz-executor/6148: #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6643 1 lock held by syz-executor/6150: #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6643 1 lock held by syz-executor/6152: #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6643 1 lock held by syz-executor/6155: #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6643 1 lock held by syz-executor/6167: #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6643 1 lock held by syz-executor/6175: #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6643 1 lock held by syz-executor/6177: #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6643 1 lock held by syz-executor/6179: #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6643 1 lock held by syz-executor/6182: #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8fedfc28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6643 ============================================= NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.11.0-syzkaller-10610-geb5b0f9812ff #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline] watchdog+0xf0c/0x1240 kernel/hung_task.c:379 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 5303 Comm: kworker/0:6 Not tainted 6.11.0-syzkaller-10610-geb5b0f9812ff #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: wg-crypt-wg1 wg_packet_encrypt_worker RIP: 0010:mark_lock+0xa4/0xc60 kernel/locking/lockdep.c:4694 Code: 48 89 84 24 08 01 00 00 31 c0 41 83 fe 09 0f 87 e3 00 00 00 41 83 fe 08 49 89 fc 48 89 f3 0f 84 97 00 00 00 41 bd 01 00 00 00 <44> 89 f1 41 d3 e5 4d 63 ed 48 89 df e8 eb 6a ff ff 48 ba 00 00 00 RSP: 0018:ffffc90000006c20 EFLAGS: 00000046 RAX: 0000000000000000 RBX: ffff88802f04c7a8 RCX: 1ffffffff2dc51b3 RDX: 0000000000000002 RSI: ffff88802f04c7a8 RDI: ffff88802f04c7ca RBP: ffffc90000006d60 R08: 0000000000000000 R09: fffffbfff2dc238f R10: ffffffff96e11c7f R11: 0000000000000000 R12: ffff88802f04bc00 R13: 0000000000000001 R14: 0000000000000008 R15: 1ffff92000000d8a FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31c20000 CR3: 000000000df7c000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: mark_usage kernel/locking/lockdep.c:4643 [inline] __lock_acquire+0x906/0x3ce0 kernel/locking/lockdep.c:5153 lock_acquire kernel/locking/lockdep.c:5822 [inline] lock_acquire+0x1b1/0x560 kernel/locking/lockdep.c:5787 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162 ref_tracker_alloc+0x209/0x5b0 lib/ref_tracker.c:212 __netdev_tracker_alloc include/linux/netdevice.h:4050 [inline] netdev_hold include/linux/netdevice.h:4079 [inline] dst_init+0xda/0x580 net/core/dst.c:52 dst_alloc+0xbb/0x1a0 net/core/dst.c:93 rt_dst_alloc+0x35/0x3a0 net/ipv4/route.c:1612 __mkroute_output net/ipv4/route.c:2573 [inline] ip_route_output_key_hash_rcu+0x8a5/0x2770 net/ipv4/route.c:2795 ip_route_output_key_hash+0x138/0x2e0 net/ipv4/route.c:2624 __ip_route_output_key include/net/route.h:141 [inline] ip_route_output_flow+0x27/0x150 net/ipv4/route.c:2852 ip_route_output_key include/net/route.h:151 [inline] ip_route_me_harder+0x519/0x1290 net/ipv4/netfilter.c:53 synproxy_send_tcp.isra.0+0x2fa/0x630 net/netfilter/nf_synproxy_core.c:431 synproxy_send_client_synack+0x94c/0xcf0 net/netfilter/nf_synproxy_core.c:484 nft_synproxy_eval_v4 net/netfilter/nft_synproxy.c:59 [inline] nft_synproxy_do_eval+0xa49/0xd60 net/netfilter/nft_synproxy.c:141 expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline] nft_do_chain+0x2e6/0x18f0 net/netfilter/nf_tables_core.c:288 nft_do_chain_inet+0x18b/0x350 net/netfilter/nft_chain_filter.c:161 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline] nf_hook_slow+0xbb/0x200 net/netfilter/core.c:626 nf_hook.constprop.0+0x42e/0x750 include/linux/netfilter.h:269 NF_HOOK include/linux/netfilter.h:312 [inline] ip_local_deliver+0x169/0x1f0 net/ipv4/ip_input.c:254 dst_input include/net/dst.h:460 [inline] ip_rcv_finish net/ipv4/ip_input.c:449 [inline] NF_HOOK include/linux/netfilter.h:314 [inline] NF_HOOK include/linux/netfilter.h:308 [inline] ip_rcv+0x2c3/0x5d0 net/ipv4/ip_input.c:569 __netif_receive_skb_one_core+0x199/0x1e0 net/core/dev.c:5662 __netif_receive_skb+0x1d/0x160 net/core/dev.c:5775 process_backlog+0x443/0x15f0 net/core/dev.c:6107 __napi_poll.constprop.0+0xb7/0x550 net/core/dev.c:6771 napi_poll net/core/dev.c:6840 [inline] net_rx_action+0xa92/0x1010 net/core/dev.c:6962 handle_softirqs+0x213/0x8f0 kernel/softirq.c:554 do_softirq kernel/softirq.c:455 [inline] do_softirq+0xb2/0xf0 kernel/softirq.c:442 __local_bh_enable_ip+0x100/0x120 kernel/softirq.c:382 spin_unlock_bh include/linux/spinlock.h:396 [inline] ptr_ring_consume_bh include/linux/ptr_ring.h:367 [inline] wg_packet_encrypt_worker+0x27d/0xbb0 drivers/net/wireguard/send.c:293 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244