------------[ cut here ]------------ workqueue: cannot queue hci_tx_work on wq hci0 WARNING: CPU: 1 PID: 8447 at kernel/workqueue.c:2258 __queue_work+0xdff/0x10a0 kernel/workqueue.c:2256 Modules linked in: CPU: 1 UID: 0 PID: 8447 Comm: syz.1.605 Not tainted 6.15.0-rc2-syzkaller-00577-g8066e388be48 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:__queue_work+0xdff/0x10a0 kernel/workqueue.c:2256 Code: e8 03 80 3c 28 00 74 08 4c 89 ff e8 6b 61 a3 00 49 8b 37 49 81 c5 78 01 00 00 48 c7 c7 c0 cd 49 8c 4c 89 ea e8 42 7d f8 ff 90 <0f> 0b 90 90 e9 5d f4 ff ff e8 c3 21 39 00 90 0f 0b 90 e9 a7 fc ff RSP: 0018:ffffc90003bb73e8 EFLAGS: 00010046 RAX: 30eef559d0f23500 RBX: ffff888022f5da00 RCX: 0000000000080000 RDX: ffffc9000ca1b000 RSI: 000000000000b32f RDI: 000000000000b330 RBP: dffffc0000000000 R08: ffffffff818218d2 R09: fffffbfff1d7a960 R10: dffffc0000000000 R11: fffffbfff1d7a960 R12: 1ffff110025b6938 R13: ffff888012db4978 R14: 0000000000000008 R15: ffff888056ff8b28 FS: 00007f4c0885a6c0(0000) GS:ffff8881250ab000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000006038 CR3: 000000003524c000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: queue_work_on+0x1c4/0x380 kernel/workqueue.c:2392 l2cap_chan_send+0x1658/0x2750 net/bluetooth/l2cap_core.c:-1 l2cap_sock_sendmsg+0x339/0x4e0 net/bluetooth/l2cap_sock.c:1139 sock_sendmsg_nosec net/socket.c:712 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:727 ____sys_sendmsg+0x523/0x860 net/socket.c:2566 ___sys_sendmsg net/socket.c:2620 [inline] __sys_sendmmsg+0x3a0/0x7b0 net/socket.c:2709 __do_sys_sendmmsg net/socket.c:2736 [inline] __se_sys_sendmmsg net/socket.c:2733 [inline] __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2733 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f4c0798e169 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4c0885a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007f4c07bb5fa0 RCX: 00007f4c0798e169 RDX: 00000000ffffff80 RSI: 0000200000004100 RDI: 0000000000000006 RBP: 00007f4c07a10a68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f4c07bb5fa0 R15: 00007ffcd5901158