program:
r0 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004, @tid=r0}, &(0x7f0000bbdffc))
timer_settime(0x0, 0x0, &(0x7f0000000280)={{0x0, 0x989680}, {0x0, 0x989680}}, 0x0)
r1 = syz_init_net_socket$bt_hci(0x1f, 0x3, 0x1)
ioctl$sock_bt_hci(r1, 0x400448cb, 0x0)
syz_emit_vhci(&(0x7f0000000040)=ANY=[@ANYBLOB="043e1f1b"], 0x22)
syz_emit_vhci(&(0x7f0000000040)=ANY=[@ANYBLOB="040e0402030c"], 0x7)
25][ T4667] Bluetooth: hci0: command tx timeout
[ 102.654076][ T5330] ------------[ cut here ]------------
[ 102.656891][ T5330] workqueue: cannot queue hci_rx_work on wq hci0
[ 102.660691][ T5330] WARNING: kernel/workqueue.c:2252 at __queue_work+0xd1f/0xf90, CPU#0: syz.0.0/5330
[ 102.666190][ T5330] Modules linked in:
[ 102.678650][ T5330] CPU: 0 UID: 0 PID: 5330 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 102.684201][ T5330] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 102.700295][ T5330] RIP: 0010:__queue_work+0xd4a/0xf90
[ 102.703196][ T5330] Code: 83 c5 18 4c 89 e8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ef e8 d7 22 a2 00 49 8b 75 00 49 81 c7 78 01 00 00 4c 89 f7 4c 89 fa <67> 48 0f b9 3a 48 83 c4 58 5b 41 5c 41 5d 41 5e 41 5f 5d e9 8e b1
[ 102.713888][ T5330] RSP: 0018:ffffc9000aeefb20 EFLAGS: 00010086
[ 102.717562][ T5330] RAX: 1ffff1100253a97b RBX: 0000000000000008 RCX: 0000000000100000
[ 102.722014][ T5330] RDX: ffff88804121a178 RSI: ffffffff8a8d3a90 RDI: ffffffff8ff22ad0
[ 102.728531][ T5330] RBP: 0000000000000000 R08: ffff8880129d4bc7 R09: 1ffff1100253a978
[ 102.733446][ T5330] R10: dffffc0000000000 R11: ffffed100253a979 R12: dffffc0000000000
[ 102.740068][ T5330] R13: ffff8880129d4bd8 R14: ffffffff8ff22ad0 R15: ffff88804121a178
[ 102.750303][ T5330] FS: 00007f8cc4b176c0(0000) GS:ffff88808ccea000(0000) knlGS:0000000000000000
[ 102.756261][ T5330] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 102.760801][ T5330] CR2: 00007fa1fa22a3a0 CR3: 0000000044b59000 CR4: 0000000000352ef0
[ 102.765160][ T5330] Call Trace:
[ 102.766636][ T5330]
[ 102.767961][ T5330] ? rcu_is_watching+0x15/0xb0
[ 102.769801][ T5330] queue_work_on+0x106/0x1d0
[ 102.771716][ T5330] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 102.774140][ T5330] hci_recv_frame+0x625/0x7c0
[ 102.776840][ T5330] ? skb_pull+0xc1/0x1d0
[ 102.782869][ T5330] vhci_write+0x358/0x4a0
[ 102.786297][ T5330] vfs_write+0x61d/0xb90
[ 102.789214][ T5330] ? __pfx_vfs_write+0x10/0x10
[ 102.793152][ T5330] ? __fget_files+0x2a/0x420
[ 102.797067][ T5330] ksys_write+0x150/0x270
[ 102.800176][ T5330] ? __pfx_ksys_write+0x10/0x10
[ 102.803378][ T5330] ? __pfx_kcov_ioctl+0x10/0x10
[ 102.806699][ T5330] do_syscall_64+0xe2/0xf80
[ 102.810060][ T5330] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 102.814081][ T5330] ? trace_irq_disable+0x37/0x100
[ 102.817568][ T5330] ? clear_bhb_loop+0x60/0xb0
[ 102.820712][ T5330] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 102.824571][ T5330] RIP: 0033:0x7f8cc3b5b78e
[ 102.828716][ T5330] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[ 102.839611][ T5330] RSP: 002b:00007f8cc4b16fb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 102.842787][ T5330] RAX: ffffffffffffffda RBX: 00007f8cc4b176c0 RCX: 00007f8cc3b5b78e
[ 102.847668][ T5330] RDX: 0000000000000022 RSI: 0000200000000040 RDI: 00000000000000ca
[ 102.853111][ T5330] RBP: 00007f8cc3c08c1f R08: 0000000000000000 R09: 0000000000000000
[ 102.858134][ T5330] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 102.862451][ T5330] R13: 00007f8cc3e16128 R14: 00007f8cc3e16090 R15: 00007ffd1c417028
[ 102.865614][ T5330]
[ 102.866940][ T5330] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 102.869941][ T5330] CPU: 0 UID: 0 PID: 5330 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 102.879672][ T5330] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 102.890846][ T5330] Call Trace:
[ 102.892427][ T5330]
[ 102.893813][ T5330] vpanic+0x1e0/0x670
[ 102.912323][ T5330] panic+0xc5/0xd0
[ 102.914579][ T5330] ? __pfx_panic+0x10/0x10
[ 102.917381][ T5330] __warn+0x315/0x4a0
[ 102.919505][ T5330] ? __queue_work+0xd1f/0xf90
[ 102.922699][ T5330] ? __queue_work+0xd1f/0xf90
[ 102.925296][ T5330] __report_bug+0x29a/0x540
[ 102.928107][ T5330] ? __queue_work+0xd1f/0xf90
[ 102.934961][ T5330] ? __pfx___report_bug+0x10/0x10
[ 102.937271][ T5330] ? vhci_write+0xbe/0x4a0
[ 102.942598][ T5330] ? __pfx_hci_rx_work+0x10/0x10
[ 102.959640][ T5330] ? __lock_acquire+0x6b5/0x2cf0
[ 102.961836][ T5330] report_bug_entry+0x19a/0x290
[ 102.963937][ T5330] ? __queue_work+0xd4a/0xf90
[ 102.966069][ T5330] ? __queue_work+0xd4f/0xf90
[ 102.968226][ T5330] handle_bug+0xca/0x200
[ 102.970092][ T5330] exc_invalid_op+0x1a/0x50
[ 102.972590][ T5330] asm_exc_invalid_op+0x1a/0x20
[ 102.986086][ T5330] RIP: 0010:__queue_work+0xd4a/0xf90
[ 102.989553][ T5330] Code: 83 c5 18 4c 89 e8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ef e8 d7 22 a2 00 49 8b 75 00 49 81 c7 78 01 00 00 4c 89 f7 4c 89 fa <67> 48 0f b9 3a 48 83 c4 58 5b 41 5c 41 5d 41 5e 41 5f 5d e9 8e b1
[ 103.017192][ T5330] RSP: 0018:ffffc9000aeefb20 EFLAGS: 00010086
[ 103.028343][ T5330] RAX: 1ffff1100253a97b RBX: 0000000000000008 RCX: 0000000000100000
[ 103.032970][ T5330] RDX: ffff88804121a178 RSI: ffffffff8a8d3a90 RDI: ffffffff8ff22ad0
[ 103.042314][ T5330] RBP: 0000000000000000 R08: ffff8880129d4bc7 R09: 1ffff1100253a978
[ 103.049368][ T5330] R10: dffffc0000000000 R11: ffffed100253a979 R12: dffffc0000000000
[ 103.069015][ T5330] R13: ffff8880129d4bd8 R14: ffffffff8ff22ad0 R15: ffff88804121a178
[ 103.072548][ T5330] ? __pfx_hci_rx_work+0x10/0x10
[ 103.074816][ T5330] ? rcu_is_watching+0x15/0xb0
[ 103.076894][ T5330] queue_work_on+0x106/0x1d0
[ 103.078978][ T5330] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 103.081604][ T5330] hci_recv_frame+0x625/0x7c0
[ 103.083746][ T5330] ? skb_pull+0xc1/0x1d0
[ 103.085643][ T5330] vhci_write+0x358/0x4a0
[ 103.103862][ T5330] vfs_write+0x61d/0xb90
[ 103.105885][ T5330] ? __pfx_vfs_write+0x10/0x10
[ 103.119267][ T5330] ? __fget_files+0x2a/0x420
[ 103.121308][ T5330] ksys_write+0x150/0x270
[ 103.123268][ T5330] ? __pfx_ksys_write+0x10/0x10
[ 103.125697][ T5330] ? __pfx_kcov_ioctl+0x10/0x10
[ 103.129309][ T5330] do_syscall_64+0xe2/0xf80
[ 103.131909][ T5330] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 103.135291][ T5330] ? trace_irq_disable+0x37/0x100
[ 103.150788][ T5330] ? clear_bhb_loop+0x60/0xb0
[ 103.152877][ T5330] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 103.155564][ T5330] RIP: 0033:0x7f8cc3b5b78e
[ 103.157652][ T5330] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
[ 103.169488][ T5330] RSP: 002b:00007f8cc4b16fb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 103.174498][ T5330] RAX: ffffffffffffffda RBX: 00007f8cc4b176c0 RCX: 00007f8cc3b5b78e
[ 103.179235][ T5330] RDX: 0000000000000022 RSI: 0000200000000040 RDI: 00000000000000ca
[ 103.184016][ T5330] RBP: 00007f8cc3c08c1f R08: 0000000000000000 R09: 0000000000000000
[ 103.188890][ T5330] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 103.194349][ T5330] R13: 00007f8cc3e16128 R14: 00007f8cc3e16090 R15: 00007ffd1c417028
[ 103.201231][ T5330]
[ 103.205960][ T5330] Kernel Offset: disabled
[ 103.211424][ T5330] Rebooting in 86400 seconds..