------------[ cut here ]------------ workqueue: cannot queue hci_rx_work on wq hci0 WARNING: CPU: 0 PID: 5336 at kernel/workqueue.c:2258 __queue_work+0xdf6/0x1090 kernel/workqueue.c:2256 Modules linked in: CPU: 0 UID: 0 PID: 5336 Comm: syz.0.0 Not tainted 6.14.0-rc5-syzkaller-00013-g99fa936e8e4f #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:__queue_work+0xdf6/0x1090 kernel/workqueue.c:2256 Code: e8 03 80 3c 28 00 74 08 4c 89 ff e8 a4 ee 9f 00 49 8b 37 49 81 c5 78 01 00 00 48 c7 c7 60 d8 29 8c 4c 89 ea e8 bb 6f f8 ff 90 <0f> 0b 90 90 e9 66 f4 ff ff e8 2c b3 38 00 90 0f 0b 90 e9 ad fc ff RSP: 0018:ffffc900019b7a88 EFLAGS: 00010046 RAX: 79e0b916bf8c7d00 RBX: ffff888000d02440 RCX: ffff888000d02440 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: dffffc0000000000 R08: ffffffff81817e32 R09: 1ffff11003f8519a R10: dffffc0000000000 R11: ffffed1003f8519b R12: 1ffff11008114238 R13: ffff8880408a1178 R14: 0000000000000008 R15: ffff888050070a98 FS: 00007fc8a2bd46c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc8a2bd3fe0 CR3: 000000004467e000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: queue_work_on+0x1c2/0x380 kernel/workqueue.c:2392 queue_work include/linux/workqueue.h:662 [inline] hci_recv_frame+0x598/0x6f0 net/bluetooth/hci_core.c:2925 vhci_get_user drivers/bluetooth/hci_vhci.c:511 [inline] vhci_write+0x35a/0x490 drivers/bluetooth/hci_vhci.c:607 new_sync_write fs/read_write.c:586 [inline] vfs_write+0xacf/0xd10 fs/read_write.c:679 ksys_write+0x18f/0x2b0 fs/read_write.c:731 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: 0033:0x7fc8a678bc1f Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007fc8a2bd4000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fc8a69a6080 RCX: 00007fc8a678bc1f RDX: 0000000000000007 RSI: 00004000000006c0 RDI: 00000000000000ca RBP: 00007fc8a680e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 00004000000006c0 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000001 R14: 00007fc8a69a6080 R15: 00007ffc46084a08