------------[ cut here ]------------ WARNING: CPU: 0 PID: 14677 at kernel/workqueue.c:1416 current_wq_worker kernel/workqueue_internal.h:67 [inline] WARNING: CPU: 0 PID: 14677 at kernel/workqueue.c:1416 is_chained_work kernel/workqueue.c:1354 [inline] WARNING: CPU: 0 PID: 14677 at kernel/workqueue.c:1416 __queue_work+0x522/0x670 kernel/workqueue.c:1416 Modules linked in: CPU: 0 PID: 14677 Comm: syz-executor.3 Not tainted 5.10.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__queue_work+0x522/0x670 kernel/workqueue.c:1416 Code: f4 d5 de 01 e9 b3 fc ff ff 65 8b 05 38 bf e2 7e a9 00 01 ff 00 75 13 65 48 8b 3c 25 c0 7e 01 00 f6 47 24 20 0f 85 9a 00 00 00 <0f> 0b 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 0b e9 5c fc RSP: 0018:ffffc900054bfce8 EFLAGS: 00010046 RAX: 0000000080000000 RBX: ffff88811d04ea80 RCX: 0000000000000000 RDX: 0000000080000001 RSI: ffffffff83e8c727 RDI: ffff88812915e440 RBP: ffffc900054bfd20 R08: 0000000000006bb0 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff88811c5b7800 R13: 0000000000000040 R14: 0000000000000040 R15: ffff88811c5b7800 FS: 00007fa0a200c700(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000052a518 CR3: 0000000129158000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: queue_work_on+0x99/0xb0 kernel/workqueue.c:1521 queue_work include/linux/workqueue.h:507 [inline] hci_send_cmd+0x3c/0x60 net/bluetooth/hci_core.c:4061 hci_acl_create_connection+0xcf/0x120 net/bluetooth/hci_conn.c:236 hci_connect_acl+0x141/0x250 net/bluetooth/hci_conn.c:1264 hci_connect_sco+0x32/0x350 net/bluetooth/hci_conn.c:1276 sco_connect net/bluetooth/sco.c:241 [inline] sco_sock_connect+0xf3/0x310 net/bluetooth/sco.c:588 __sys_connect+0x91/0xc0 net/socket.c:1869 __do_sys_connect net/socket.c:1879 [inline] __se_sys_connect net/socket.c:1876 [inline] __x64_sys_connect+0x11/0x20 net/socket.c:1876 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45ce79 Code: 2d b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 fb b5 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fa0a200bc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 0000000000002180 RCX: 000000000045ce79 RDX: 0000000000000008 RSI: 0000000020000140 RDI: 0000000000000006 RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007fff3284db9f R14: 00007fa0a200c9c0 R15: 000000000118bf2c