Bluetooth: hci4 command 0x041b tx timeout Bluetooth: hci3 command 0x041b tx timeout Bluetooth: hci1 command 0x041b tx timeout Bluetooth: hci0 command 0x041b tx timeout Bluetooth: hci5 command 0x041b tx timeout watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor450:10453] Modules linked in: irq event stamp: 27242 hardirqs last enabled at (27241): [] restore_regs_and_return_to_kernel+0x0/0x2a hardirqs last disabled at (27242): [] apic_timer_interrupt+0x8e/0xa0 arch/x86/entry/entry_64.S:793 softirqs last enabled at (27240): [] __do_softirq+0x68b/0x9ff kernel/softirq.c:314 softirqs last disabled at (27233): [] invoke_softirq kernel/softirq.c:368 [inline] softirqs last disabled at (27233): [] irq_exit+0x193/0x240 kernel/softirq.c:409 CPU: 0 PID: 10453 Comm: syz-executor450 Not tainted 4.14.235-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff88809ee282c0 task.stack: ffff888095b50000 RIP: 0010:__read_once_size include/linux/compiler.h:183 [inline] RIP: 0010:atomic_read arch/x86/include/asm/atomic.h:27 [inline] RIP: 0010:queued_write_lock_slowpath+0xcb/0x1d0 kernel/locking/qrwlock.c:139 RSP: 0018:ffff888095b57d10 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff10 RAX: 0000000000000101 RBX: ffffffff89dd4a28 RCX: 00000000000050eb RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffff89dd4a28 watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [kworker/u5:3:7997] RBP: ffffffff89dd4a2c R08: ffffffff8b9b9218 R09: 0000000000040583 Modules linked in: R10: ffff88809ee28b98 R11: ffff88809ee282c0 R12: 0000000000000003 R13: fffffbfff13ba945 R14: 00000000000000ff R15: ffff8880a14eba10 irq event stamp: 76486 FS: 00000000009a6300(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 hardirqs last enabled at (76485): [] kvm_wait arch/x86/kernel/kvm.c:600 [inline] hardirqs last enabled at (76485): [] kvm_wait+0x14b/0x240 arch/x86/kernel/kvm.c:580 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 hardirqs last disabled at (76486): [] apic_timer_interrupt+0x8e/0xa0 arch/x86/entry/entry_64.S:793 CR2: 0000000020000000 CR3: 000000009fdc5000 CR4: 00000000001406f0 softirqs last enabled at (76442): [] __do_softirq+0x68b/0x9ff kernel/softirq.c:314 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 softirqs last disabled at (76427): [] invoke_softirq kernel/softirq.c:368 [inline] softirqs last disabled at (76427): [] irq_exit+0x193/0x240 kernel/softirq.c:409 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 CPU: 1 PID: 7997 Comm: kworker/u5:3 Not tainted 4.14.235-syzkaller #0 Call Trace: Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 queued_write_lock include/asm-generic/qrwlock.h:134 [inline] do_raw_write_lock+0xc2/0x1d0 kernel/locking/spinlock_debug.c:203 Workqueue: hci4 connectable_update_work bt_sock_unlink+0x1d/0x170 net/bluetooth/af_bluetooth.c:151 hci_sock_release+0xc1/0x4c0 net/bluetooth/hci_sock.c:850 task: ffff8880963b2280 task.stack: ffff8880963b8000 __sock_release+0xcd/0x2b0 net/socket.c:602 RIP: 0010:native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:61 RSP: 0000:ffff8880963bfaa8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff10 sock_close+0x15/0x20 net/socket.c:1139 RAX: 1ffffffff11e125c RBX: ffffffff89dd4a2c RCX: 1ffff11012c76579 __fput+0x25f/0x7a0 fs/file_table.c:210 RDX: dffffc0000000000 RSI: ffff8880963b2ba8 RDI: ffff8880963b2b04 task_work_run+0x11f/0x190 kernel/task_work.c:113 RBP: 0000000000000003 R08: 0000000000000001 R09: 0000000000000000 tracehook_notify_resume include/linux/tracehook.h:191 [inline] exit_to_usermode_loop+0x1ad/0x200 arch/x86/entry/common.c:164 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000286 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline] syscall_return_slowpath arch/x86/entry/common.c:270 [inline] do_syscall_64+0x4a3/0x640 arch/x86/entry/common.c:297 R13: dffffc0000000000 R14: ffffffff89dd4a2d R15: ffffed10174a55d8 entry_SYSCALL_64_after_hwframe+0x46/0xbb FS: 0000000000000000(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 RIP: 0033:0x40704b CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 RSP: 002b:00007ffcb1264730 EFLAGS: 00000293 CR2: 0000000020000000 CR3: 000000009ebbf000 CR4: 00000000001406e0 ORIG_RAX: 0000000000000003 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 RAX: 0000000000000000 RBX: 0000000000000005 RCX: 000000000040704b DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: RDX: ffffffffffffffb8 RSI: 0000000020000040 RDI: 0000000000000004 arch_safe_halt arch/x86/include/asm/paravirt.h:94 [inline] kvm_wait arch/x86/kernel/kvm.c:600 [inline] kvm_wait+0x179/0x240 arch/x86/kernel/kvm.c:580 RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000150 pv_wait arch/x86/include/asm/paravirt.h:679 [inline] pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:447 [inline] __pv_queued_spin_lock_slowpath+0x722/0x910 kernel/locking/qspinlock.c:465 R10: 0000000000000150 R11: 0000000000000293 R12: 00000000009a62b8 R13: 0000000000000072 R14: 00007ffcb12647b0 R15: 00007ffcb1264768 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:669 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:52 [inline] queued_spin_lock include/asm-generic/qspinlock.h:90 [inline] queued_read_lock_slowpath+0x150/0x190 kernel/locking/qrwlock.c:90 Code: hci_send_to_channel+0x3c/0x200 net/bluetooth/hci_sock.c:261 75 hci_send_monitor_ctrl_event+0x3dd/0x500 net/bluetooth/hci_sock.c:391 dc mgmt_send_event+0x2b3/0x330 net/bluetooth/mgmt_util.c:86 49 mgmt_limited_event net/bluetooth/mgmt.c:260 [inline] new_settings net/bluetooth/mgmt.c:1089 [inline] mgmt_set_connectable_complete+0x299/0x310 net/bluetooth/mgmt.c:1352 89 dd connectable_update_work+0xc3/0xf0 net/bluetooth/hci_request.c:1601 49 89 dc process_one_work+0x793/0x14a0 kernel/workqueue.c:2116 41 be ff 00 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2250 00 00 kthread+0x30d/0x420 kernel/kthread.c:232 49 c1 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 ed Code: 03 09 41 5c 83 fa e4 e9 07 4f 48 ff b8 ff 00 ff 00 48 00 89 00 ef 00 e8 fc 7d ff 09 df 5c 49 fa 01 eb c5 93 41 90 83 90 c4 90 03 90 eb 90 02 90 f3 90 90 90 <41> 90 0f 90 b6 90 45 e9 00 07 41 00 38 00 c4 00 7c 0f 08 00 84 2d c0 04 0f bb 85 64 9e 00 00 fb 00 f4 00 8b 90 03 e9 07 83 00 00