INFO: task syz-executor:11616 blocked for more than 144 seconds. Not tainted 6.10.0-syzkaller-11840-g933069701c1b #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:24528 pid:11616 tgid:11616 ppid:1 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x17ae/0x4a10 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 __tun_chr_ioctl+0x48f/0x2400 drivers/net/tun.c:3117 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff04df75b1b RSP: 002b:00007fffb5f23d40 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007ff04e105f20 RCX: 00007ff04df75b1b RDX: 00007fffb5f23dc0 RSI: 00000000400454ca RDI: 00000000000000c8 RBP: 00007ff04e106a18 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000c R13: 0000000000000003 R14: 0000000000000009 R15: 0000000000000009 INFO: task syz-executor:11619 blocked for more than 145 seconds. Not tainted 6.10.0-syzkaller-11840-g933069701c1b #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:24160 pid:11619 tgid:11619 ppid:1 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x17ae/0x4a10 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 ip_tunnel_init_net+0x20e/0x710 net/ipv4/ip_tunnel.c:1158 vti_init_net+0x2e/0xf0 net/ipv4/ip_vti.c:517 ops_init+0x359/0x610 net/core/net_namespace.c:139 setup_net+0x515/0xca0 net/core/net_namespace.c:343 copy_net_ns+0x4e2/0x7b0 net/core/net_namespace.c:508 create_new_namespaces+0x425/0x7b0 kernel/nsproxy.c:110 unshare_nsproxy_namespaces+0x124/0x180 kernel/nsproxy.c:228 ksys_unshare+0x619/0xc10 kernel/fork.c:3309 __do_sys_unshare kernel/fork.c:3380 [inline] __se_sys_unshare kernel/fork.c:3378 [inline] __x64_sys_unshare+0x38/0x40 kernel/fork.c:3378 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fac9ed77677 RSP: 002b:00007ffd38d089d8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 RAX: ffffffffffffffda RBX: 00007fac9ef05f20 RCX: 00007fac9ed77677 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000000 RBP: 00007fac9ef06a18 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000000c R13: 0000000000000003 R14: 0000000000000009 R15: 0000000000000009 INFO: task syz-executor:11621 blocked for more than 146 seconds. Not tainted 6.10.0-syzkaller-11840-g933069701c1b #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:24992 pid:11621 tgid:11621 ppid:1 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x17ae/0x4a10 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 ip_tunnel_init_net+0x20e/0x710 net/ipv4/ip_tunnel.c:1158 ops_init+0x359/0x610 net/core/net_namespace.c:139 setup_net+0x515/0xca0 net/core/net_namespace.c:343 copy_net_ns+0x4e2/0x7b0 net/core/net_namespace.c:508 create_new_namespaces+0x425/0x7b0 kernel/nsproxy.c:110 unshare_nsproxy_namespaces+0x124/0x180 kernel/nsproxy.c:228 ksys_unshare+0x619/0xc10 kernel/fork.c:3309 __do_sys_unshare kernel/fork.c:3380 [inline] __se_sys_unshare kernel/fork.c:3378 [inline] __x64_sys_unshare+0x38/0x40 kernel/fork.c:3378 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe218377677 RSP: 002b:00007ffec705a708 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 RAX: ffffffffffffffda RBX: 00007fe218505f20 RCX: 00007fe218377677 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000000 RBP: 00007fe218506a18 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 000000000000000c R13: 0000000000000003 R14: 0000000000000009 R15: 0000000000000009 INFO: task syz-executor:11623 blocked for more than 147 seconds. Not tainted 6.10.0-syzkaller-11840-g933069701c1b #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:24992 pid:11623 tgid:11623 ppid:1 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x17ae/0x4a10 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 register_nexthop_notifier+0x84/0x290 net/ipv4/nexthop.c:3871 ops_init+0x359/0x610 net/core/net_namespace.c:139 setup_net+0x515/0xca0 net/core/net_namespace.c:343 copy_net_ns+0x4e2/0x7b0 net/core/net_namespace.c:508 create_new_namespaces+0x425/0x7b0 kernel/nsproxy.c:110 unshare_nsproxy_namespaces+0x124/0x180 kernel/nsproxy.c:228 ksys_unshare+0x619/0xc10 kernel/fork.c:3309 __do_sys_unshare kernel/fork.c:3380 [inline] __se_sys_unshare kernel/fork.c:3378 [inline] __x64_sys_unshare+0x38/0x40 kernel/fork.c:3378 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f71fc977677 RSP: 002b:00007ffc2ea3beb8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 RAX: ffffffffffffffda RBX: 00007f71fcb05f20 RCX: 00007f71fc977677 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000000 RBP: 00007f71fcb06a18 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 000000000000000c R13: 0000000000000003 R14: 0000000000000009 R15: 0000000000000009 Showing all locks held in the system: 3 locks held by kworker/u8:1/12: #0: ffff888029a7e948 ( (wq_completion)ipv6_addrconf ){+.+.}-{0:0} , at: process_one_work kernel/workqueue.c:3206 [inline] , at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc90000117d00 ( (work_completion)(&(&net->ipv6.addr_chk_work)->work) ){+.+.}-{0:0} , at: process_one_work kernel/workqueue.c:3207 [inline] , at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffffffff8f5f64c8 ( rtnl_mutex ){+.+.}-{3:3} , at: addrconf_verify_work+0x19/0x30 net/ipv6/addrconf.c:4734 3 locks held by kworker/1:0/25: #0: ffff888015080948 ( (wq_completion)events ){+.+.}-{0:0} , at: process_one_work kernel/workqueue.c:3206 [inline] , at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc900001f7d00 ( deferred_process_work ){+.+.}-{0:0} , at: process_one_work kernel/workqueue.c:3207 [inline] , at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffffffff8f5f64c8 ( rtnl_mutex ){+.+.}-{3:3} , at: switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:104 1 lock held by khungtaskd/30: #0: ffffffff8e337560 ( rcu_read_lock ){....}-{1:2} , at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline] , at: rcu_read_lock include/linux/rcupdate.h:838 [inline] , at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6620 5 locks held by kworker/u8:3/52: 6 locks held by kworker/0:1H/1056: 7 locks held by kworker/0:2/1579: 2 locks held by getty/4844: #0: ffff88802adc50a0 (&tty->ldisc_sem ){++++}-{0:0} , at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc90002f062f0 (&ldata->atomic_read_lock ){+.+.}-{3:3} , at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2211 1 lock held by syz-executor/5092: #0: ffffffff8f5f64c8 ( rtnl_mutex ){+.+.}-{3:3} , at: tun_detach drivers/net/tun.c:698 [inline] , at: tun_chr_close+0x3e/0x1b0 drivers/net/tun.c:3507 3 locks held by kworker/u9:2/5099: #0: ffff888029b7f148 ( (wq_completion)hci13 ){+.+.}-{0:0} , at: process_one_work kernel/workqueue.c:3206 [inline] , at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc90003b7fd00 ( (work_completion)(&hdev->power_on) ){+.+.}-{0:0} , at: process_one_work kernel/workqueue.c:3207 [inline] , at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffff88802a284d80 ( &hdev->req_lock ){+.+.}-{3:3} , at: hci_dev_do_open net/bluetooth/hci_core.c:417 [inline] , at: hci_power_on+0x1bf/0x6b0 net/bluetooth/hci_core.c:948 5 locks held by kworker/u9:3/5100: #0: ffff88802c572148 ( (wq_completion)hci8 ){+.+.}-{0:0} , at: process_one_work kernel/workqueue.c:3206 [inline] , at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc90003b8fd00 ( (work_completion)(&hdev->cmd_sync_work) ){+.+.}-{0:0} , at: process_one_work kernel/workqueue.c:3207 [inline] , at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffff88804eb80d80 ( &hdev->req_lock ){+.+.}-{3:3} , at: hci_cmd_sync_work+0x1ec/0x400 net/bluetooth/hci_sync.c:327 #3: ffff88804eb80078 ( &hdev->lock ){+.+.}-{3:3} , at: hci_abort_conn_sync+0x1ea/0xde0 net/bluetooth/hci_sync.c:5491 #4: ffffffff8f761ca8 ( hci_cb_list_lock ){+.+.}-{3:3} , at: hci_connect_cfm include/net/bluetooth/hci_core.h:1962 [inline] , at: hci_conn_failed+0x185/0x340 net/bluetooth/hci_conn.c:1265 5 locks held by kworker/u9:4/5101: #0: ffff888069990148 ( (wq_completion)hci7 ){+.+.}-{0:0} , at: process_one_work kernel/workqueue.c:3206 [inline] , at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc90003bafd00 ( (work_completion)(&hdev->cmd_sync_work) ){+.+.}-{0:0} , at: process_one_work kernel/workqueue.c:3207 [inline] , at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffff888022234d80 ( &hdev->req_lock ){+.+.}-{3:3} , at: hci_cmd_sync_work+0x1ec/0x400 net/bluetooth/hci_sync.c:327 #3: ffff888022234078 ( &hdev->lock ){+.+.}-{3:3} , at: hci_abort_conn_sync+0x1ea/0xde0 net/bluetooth/hci_sync.c:5491 #4: ffffffff8f761ca8 ( hci_cb_list_lock ){+.+.}-{3:3} , at: hci_connect_cfm include/net/bluetooth/hci_core.h:1962 [inline] , at: hci_conn_failed+0x185/0x340 net/bluetooth/hci_conn.c:1265 5 locks held by kworker/u9:5/5103: #0: ffff88806709a948 ( (wq_completion)hci9 ){+.+.}-{0:0} , at: process_one_work kernel/workqueue.c:3206 [inline] , at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc90003bcfd00 ( (work_completion)(&hdev->cmd_sync_work) ){+.+.}-{0:0} , at: process_one_work kernel/workqueue.c:3207 [inline] , at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffff88804af20d80 ( &hdev->req_lock ){+.+.}-{3:3} , at: hci_cmd_sync_work+0x1ec/0x400 net/bluetooth/hci_sync.c:327 #3: ffff88804af20078 ( &hdev->lock ){+.+.}-{3:3} , at: hci_abort_conn_sync+0x1ea/0xde0 net/bluetooth/hci_sync.c:5491 #4: ffffffff8f761ca8 ( hci_cb_list_lock ){+.+.}-{3:3} , at: hci_connect_cfm include/net/bluetooth/hci_core.h:1962 [inline] , at: hci_conn_failed+0x185/0x340 net/bluetooth/hci_conn.c:1265 5 locks held by kworker/u9:6/5107: #0: ffff88804a83c148 ( (wq_completion)hci10){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] (wq_completion)hci10){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc90003d07d00 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc90003d07d00 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffff88804a800d80 (&hdev->req_lock){+.+.}-{3:3}, at: hci_cmd_sync_work+0x1ec/0x400 net/bluetooth/hci_sync.c:327 #3: ffff88804a800078 ( &hdev->lock ){+.+.}-{3:3} , at: hci_abort_conn_sync+0x1ea/0xde0 net/bluetooth/hci_sync.c:5491 #4: ffffffff8f761ca8 ( hci_cb_list_lock ){+.+.}-{3:3} , at: hci_connect_cfm include/net/bluetooth/hci_core.h:1962 [inline] , at: hci_conn_failed+0x185/0x340 net/bluetooth/hci_conn.c:1265 5 locks held by kworker/u9:9/5112: #0: ffff888066588948 ( (wq_completion)hci6 ){+.+.}-{0:0} , at: process_one_work kernel/workqueue.c:3206 [inline] , at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc90003d77d00 ( (work_completion)(&hdev->cmd_sync_work) ){+.+.}-{0:0} , at: process_one_work kernel/workqueue.c:3207 [inline] , at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffff888024454d80 ( &hdev->req_lock ){+.+.}-{3:3} , at: hci_cmd_sync_work+0x1ec/0x400 net/bluetooth/hci_sync.c:327 #3: ffff888024454078 ( &hdev->lock ){+.+.}-{3:3} , at: hci_abort_conn_sync+0x1ea/0xde0 net/bluetooth/hci_sync.c:5491 #4: ffffffff8f761ca8 ( hci_cb_list_lock ){+.+.}-{3:3} , at: hci_connect_cfm include/net/bluetooth/hci_core.h:1962 [inline] , at: hci_conn_failed+0x185/0x340 net/bluetooth/hci_conn.c:1265 9 locks held by kworker/0:5/5149: 7 locks held by kworker/0:6/5151: 3 locks held by kworker/1:6/5152: #0: ffff888015080948 ( (wq_completion)events ){+.+.}-{0:0} , at: process_one_work kernel/workqueue.c:3206 [inline] , at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc90004037d00 ( (linkwatch_work).work ){+.+.}-{0:0} , at: process_one_work kernel/workqueue.c:3207 [inline] , at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffffffff8f5f64c8 ( rtnl_mutex ){+.+.}-{3:3} , at: linkwatch_event+0xe/0x60 net/core/link_watch.c:276 5 locks held by kworker/0:7/5237: 1 lock held by syz-executor/9102: #0: ffffffff8f5f64c8 ( rtnl_mutex ){+.+.}-{3:3} , at: tun_detach drivers/net/tun.c:698 [inline] , at: tun_chr_close+0x3e/0x1b0 drivers/net/tun.c:3507 1 lock held by syz.1.1642/10481: #0: ffffffff8f5f64c8 ( rtnl_mutex){+.+.}-{3:3} , at: tun_detach drivers/net/tun.c:698 [inline] , at: tun_chr_close+0x3e/0x1b0 drivers/net/tun.c:3507 1 lock held by syz.2.2050/11589: #0: ffffffff8f5f64c8 ( rtnl_mutex ){+.+.}-{3:3} , at: tun_detach drivers/net/tun.c:698 [inline] , at: tun_chr_close+0x3e/0x1b0 drivers/net/tun.c:3507 1 lock held by syz.0.2053/11601: #0: ffffffff8f5f64c8 ( rtnl_mutex ){+.+.}-{3:3} , at: tun_detach drivers/net/tun.c:698 [inline] , at: tun_chr_close+0x3e/0x1b0 drivers/net/tun.c:3507 2 locks held by syz-executor/11615: #0: ffffffff8f5e9950 ( pernet_ops_rwsem ){++++}-{3:3} , at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504 #1: ffffffff8f5f64c8 ( rtnl_mutex ){+.+.}-{3:3} , at: wg_netns_pre_exit+0x1f/0x1e0 drivers/net/wireguard/device.c:414 1 lock held by syz-executor/11616: #0: ffffffff8f5f64c8 ( rtnl_mutex ){+.+.}-{3:3} , at: __tun_chr_ioctl+0x48f/0x2400 drivers/net/tun.c:3117 2 locks held by syz-executor/11619: #0: ffffffff8f5e9950 ( pernet_ops_rwsem ){++++}-{3:3} , at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504 #1: ffffffff8f5f64c8 ( rtnl_mutex ){+.+.}-{3:3} , at: ip_tunnel_init_net+0x20e/0x710 net/ipv4/ip_tunnel.c:1158 2 locks held by syz-executor/11621: #0: ffffffff8f5e9950 ( pernet_ops_rwsem){++++}-{3:3} , at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504 #1: ffffffff8f5f64c8 (rtnl_mutex ){+.+.}-{3:3}, at: ip_tunnel_init_net+0x20e/0x710 net/ipv4/ip_tunnel.c:1158 2 locks held by syz-executor/11623: #0: ffffffff8f5e9950 ( pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504 #1: ffffffff8f5f64c8 ( rtnl_mutex ){+.+.}-{3:3} , at: register_nexthop_notifier+0x84/0x290 net/ipv4/nexthop.c:3871 1 lock held by syz-executor/11637: #0: ffffffff8f5f64c8 ( rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644 1 lock held by syz-executor/11638: #0: ffffffff8f5f64c8 ( rtnl_mutex ){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] ){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644 1 lock held by syz-executor/11641: #0: ffffffff8f5f64c8 ( rtnl_mutex ){+.+.}-{3:3} , at: rtnl_lock net/core/rtnetlink.c:79 [inline] , at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644 1 lock held by syz-executor/11643: #0: ffffffff8f5f64c8 ( rtnl_mutex ){+.+.}-{3:3} , at: rtnl_lock net/core/rtnetlink.c:79 [inline] , at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644 1 lock held by syz-executor/11645: #0: ffffffff8f5f64c8 ( rtnl_mutex ){+.+.}-{3:3} , at: rtnl_lock net/core/rtnetlink.c:79 [inline] , at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644 1 lock held by syz-executor/11652: #0: ffffffff8f5f64c8 ( rtnl_mutex ){+.+.}-{3:3} , at: rtnl_lock net/core/rtnetlink.c:79 [inline] , at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644 1 lock held by syz-executor/11654: #0: ffff888024194d80 ( &hdev->req_lock ){+.+.}-{3:3}, at: hci_dev_do_open net/bluetooth/hci_core.c:417 [inline] ){+.+.}-{3:3}, at: hci_dev_open+0x1f4/0x300 net/bluetooth/hci_core.c:475 1 lock held by dhcpcd/11659: #0: ffff888022ed0258 ( sk_lock-AF_PACKET ){+.+.}-{0:0} , at: lock_sock include/net/sock.h:1607 [inline] , at: packet_do_bind+0x32/0xcb0 net/packet/af_packet.c:3266 2 locks held by dhcpcd/11660: #0: ffff888061c30258 ( sk_lock-AF_PACKET ){+.+.}-{0:0} , at: lock_sock include/net/sock.h:1607 [inline] , at: packet_do_bind+0x32/0xcb0 net/packet/af_packet.c:3266 #1: ffffffff8e33c938 ( rcu_state.exp_mutex ){+.+.}-{3:3} , at: exp_funnel_lock kernel/rcu/tree_exp.h:328 [inline] , at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:958 1 lock held by dhcpcd/11661: #0: ffff88801d54d608 ( &sb->s_type->i_mutex_key #9 ){+.+.}-{3:3} , at: inode_lock include/linux/fs.h:799 [inline] , at: __sock_release net/socket.c:658 [inline] , at: sock_close+0x90/0x240 net/socket.c:1421 1 lock held by dhcpcd/11662: #0: ffff88805a328258 ( sk_lock-AF_PACKET ){+.+.}-{0:0} , at: lock_sock include/net/sock.h:1607 [inline] , at: packet_do_bind+0x32/0xcb0 net/packet/af_packet.c:3266 1 lock held by dhcpcd/11663: #0: ffff88805a32a258 ( sk_lock-AF_PACKET ){+.+.}-{0:0} , at: lock_sock include/net/sock.h:1607 [inline] , at: packet_do_bind+0x32/0xcb0 net/packet/af_packet.c:3266 3 locks held by kworker/u9:1/11667: #0: ffff88802ace5948 ( (wq_completion)hci15 ){+.+.}-{0:0} , at: process_one_work kernel/workqueue.c:3206 [inline] , at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc90013e37d00 ( (work_completion)(&hdev->power_on) ){+.+.}-{0:0} , at: process_one_work kernel/workqueue.c:3207 [inline] , at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffff88801fd84d80 ( &hdev->req_lock ){+.+.}-{3:3} , at: hci_dev_do_open net/bluetooth/hci_core.c:417 [inline] , at: hci_power_on+0x1bf/0x6b0 net/bluetooth/hci_core.c:948 1 lock held by dhcpcd/11668: #0: ffff8880248f8258 ( sk_lock-AF_PACKET ){+.+.}-{0:0} , at: lock_sock include/net/sock.h:1607 [inline] , at: packet_do_bind+0x32/0xcb0 net/packet/af_packet.c:3266 ============================================= NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.10.0-syzkaller-11840-g933069701c1b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 Call Trace: __dump_stack lib/dump_stack.c:93 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119 nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113