------------[ cut here ]------------ WARNING: CPU: 0 PID: 8012 at kernel/workqueue.c:1441 __queue_work+0xe2d/0xfb0 kernel/workqueue.c:1441 Modules linked in: CPU: 0 PID: 8012 Comm: syz.0.1212 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 RIP: 0010:__queue_work+0xe2d/0xfb0 kernel/workqueue.c:1441 Code: e9 9d fc ff ff 48 8b 0c 24 80 e1 07 80 c1 03 38 c1 0f 8c c7 fc ff ff 48 8b 3c 24 e8 dd 23 7f 00 e9 b9 fc ff ff e8 a3 17 2e 00 <0f> 0b 48 83 c4 60 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 8d 17 2e 00 RSP: 0018:ffffc9000d6ffae8 EFLAGS: 00010083 RAX: ffffffff81546f0d RBX: 0000000000010000 RCX: 0000000000080000 RDX: ffffc9000df9a000 RSI: 0000000000000085 RDI: 0000000000000086 RBP: 0000000000000000 R08: ffff8880781b10c7 R09: 1ffff1100f036218 R10: dffffc0000000000 R11: ffffed100f036219 R12: ffff88805e758000 R13: ffff88805e7581c0 R14: 0000000000000008 R15: ffff888055a5a301 FS: 00007fc84a23a6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc84a239ff8 CR3: 000000007db4f000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: queue_work_on+0x124/0x1f0 kernel/workqueue.c:1548 queue_work include/linux/workqueue.h:512 [inline] hci_recv_frame+0x528/0x640 net/bluetooth/hci_core.c:2955 vhci_get_user drivers/bluetooth/hci_vhci.c:420 [inline] vhci_write+0x345/0x460 drivers/bluetooth/hci_vhci.c:516 call_write_iter include/linux/fs.h:2265 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x4b1/0xa30 fs/read_write.c:584 ksys_write+0x14c/0x250 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fc84935d68e 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 RSP: 002b:00007fc84a239fb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fc84a23a6c0 RCX: 00007fc84935d68e RDX: 0000000000000022 RSI: 0000200000000040 RDI: 00000000000000ca RBP: 00007fc849432d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fc849616128 R14: 00007fc849616090 R15: 00007fffd7605708