------------[ cut here ]------------ WARNING: CPU: 1 PID: 8522 at kernel/workqueue.c:2257 __queue_work+0xcd3/0xf50 kernel/workqueue.c:2256 Modules linked in: CPU: 1 UID: 0 PID: 8522 Comm: syz.1.688 Not tainted 6.13.0-rc2-syzkaller-00457-gd3c9510dc900 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 RIP: 0010:__queue_work+0xcd3/0xf50 kernel/workqueue.c:2256 Code: ff e8 71 e8 37 00 90 0f 0b 90 e9 b2 fe ff ff e8 63 e8 37 00 eb 13 e8 5c e8 37 00 eb 0c e8 55 e8 37 00 eb 05 e8 4e e8 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:ffffc9000485f888 EFLAGS: 00010087 RAX: ffffffff816775e4 RBX: ffff88802abf1e00 RCX: 0000000000080000 RDX: ffffc90005282000 RSI: 00000000000002f5 RDI: 00000000000002f6 RBP: 0000000000000000 R08: ffffffff81676a44 R09: 0000000000000000 R10: ffffc9000485f960 R11: fffff5200090bf2d R12: ffff88805a00d800 R13: ffff88805a00d9c0 R14: dffffc0000000000 R15: 0000000000000008 FS: 00007fbe34d8a6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c352926 CR3: 0000000028684000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: queue_delayed_work_on+0x1ca/0x390 kernel/workqueue.c:2552 sco_conn_free net/bluetooth/sco.c:91 [inline] kref_put include/linux/kref.h:65 [inline] sco_conn_put+0x145/0x210 net/bluetooth/sco.c:107 sco_chan_del+0xa3/0x180 net/bluetooth/sco.c:236 sco_sock_close net/bluetooth/sco.c:526 [inline] sco_sock_release+0xb3/0x320 net/bluetooth/sco.c:1300 __sock_release net/socket.c:640 [inline] sock_close+0xbc/0x240 net/socket.c:1419 __fput+0x23c/0xa50 fs/file_table.c:450 task_work_run+0x24f/0x310 kernel/task_work.c:239 get_signal+0x15f7/0x1750 kernel/signal.c:2790 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0xce/0x340 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fbe33f85d29 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:00007fbe34d8a038 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: fffffffffffffffc RBX: 00007fbe34175fa0 RCX: 00007fbe33f85d29 RDX: 0000000000000008 RSI: 0000000020000000 RDI: 0000000000000004 RBP: 00007fbe34001a20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fbe34175fa0 R15: 00007ffe3e4f91f8