------------[ cut here ]------------ WARNING: CPU: 0 PID: 5330 at kernel/workqueue.c:2257 __queue_work+0xcd3/0xf50 kernel/workqueue.c:2256 Modules linked in: CPU: 0 UID: 0 PID: 5330 Comm: syz.0.0 Not tainted 6.12.0-rc6-syzkaller-00110-gff7afaeca1a1 #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+0xcd3/0xf50 kernel/workqueue.c:2256 Code: ff e8 f1 ad 37 00 90 0f 0b 90 e9 1e fd ff ff e8 e3 ad 37 00 eb 13 e8 dc ad 37 00 eb 0c e8 d5 ad 37 00 eb 05 e8 ce ad 37 00 90 <0f> 0b 90 48 83 c4 60 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc RSP: 0018:ffffc9000d0c7a88 EFLAGS: 00010093 RAX: ffffffff815d2c84 RBX: ffff88801f142440 RCX: ffff88801f142440 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff815d20e4 R09: 0000000000000000 R10: ffffc9000d0c7b60 R11: fffff52001a18f6d R12: ffff888044311000 R13: ffff8880443111c0 R14: dffffc0000000000 R15: 0000000000000008 FS: 00007f99e3a286c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f99e3a27f98 CR3: 00000000363f6000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: queue_work_on+0x1c2/0x380 kernel/workqueue.c:2390 queue_work include/linux/workqueue.h:662 [inline] hci_recv_frame+0x598/0x6f0 net/bluetooth/hci_core.c:2946 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:590 [inline] vfs_write+0xaeb/0xd30 fs/read_write.c:683 ksys_write+0x183/0x2b0 fs/read_write.c:736 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: 0033:0x7f99e2b7d1ff Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 c9 8d 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 1c 8e 02 00 48 RSP: 002b:00007f99e3a28000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f99e2d36058 RCX: 00007f99e2b7d1ff RDX: 000000000000000e RSI: 0000000020000540 RDI: 00000000000000ca RBP: 00007f99e2bf139e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000020000540 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f99e2d36058 R15: 00007ffd3c600cc8