Bluetooth: hci0: Opcode 0x080f failed: -4 ------------[ cut here ]------------ ODEBUG: free active (active state 0) object: ffff88805fc389c0 object type: timer_list hint: hci_cmd_timeout+0x0/0x1e0 WARNING: CPU: 1 PID: 12192 at lib/debugobjects.c:518 debug_print_object lib/debugobjects.c:515 [inline] WARNING: CPU: 1 PID: 12192 at lib/debugobjects.c:518 __debug_check_no_obj_freed lib/debugobjects.c:990 [inline] WARNING: CPU: 1 PID: 12192 at lib/debugobjects.c:518 debug_check_no_obj_freed+0x446/0x540 lib/debugobjects.c:1020 Modules linked in: CPU: 1 PID: 12192 Comm: syz.4.2313 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:debug_print_object lib/debugobjects.c:515 [inline] RIP: 0010:__debug_check_no_obj_freed lib/debugobjects.c:990 [inline] RIP: 0010:debug_check_no_obj_freed+0x446/0x540 lib/debugobjects.c:1020 Code: 4c 8b 4d 00 48 c7 c7 c0 74 fc 8a 48 c7 c6 20 71 fc 8a 48 c7 c2 40 76 fc 8a 8b 0c 24 4d 89 f8 41 55 e8 6e dd 29 fd 48 83 c4 08 <0f> 0b 4c 8b 6c 24 18 48 b9 00 00 00 00 00 fc ff df ff 05 a3 92 24 RSP: 0018:ffffc900034f7a38 EFLAGS: 00010282 RAX: b073de4d2e5ea500 RBX: ffffffff970729b8 RCX: 0000000000080000 RDX: ffffc90018a6d000 RSI: 0000000000008445 RDI: 0000000000008446 RBP: ffffffff8aac9f00 R08: ffffc900034f7627 R09: 1ffff9200069eec4 R10: dffffc0000000000 R11: fffff5200069eec5 R12: ffff88805fc3a000 R13: ffffffff89702a60 R14: ffff88805fc38000 R15: ffff88805fc389c0 FS: 00007f739ab766c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4bca459e9c CR3: 00000000674af000 CR4: 00000000003506e0 Call Trace: slab_free_hook mm/slub.c:1786 [inline] slab_free_freelist_hook+0xd2/0x1b0 mm/slub.c:1837 slab_free mm/slub.c:3830 [inline] __kmem_cache_free+0xba/0x1f0 mm/slub.c:3843 bt_host_release+0x82/0x90 net/bluetooth/hci_sysfs.c:87 device_release+0x96/0x1c0 drivers/base/core.c:-1 kobject_cleanup lib/kobject.c:689 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x221/0x470 lib/kobject.c:737 hci_dev_put include/net/bluetooth/hci_core.h:1610 [inline] hci_dev_cmd+0x213/0x7b0 net/bluetooth/hci_core.c:803 sock_do_ioctl+0xd7/0x2f0 net/socket.c:1222 sock_ioctl+0x623/0x7a0 net/socket.c:1341 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:871 [inline] __se_sys_ioctl+0xfd/0x170 fs/ioctl.c:857 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f7399d8f6c9 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:00007f739ab76038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f7399fe5fa0 RCX: 00007f7399d8f6c9 RDX: 00002000000001c0 RSI: 00000000400448e1 RDI: 0000000000000004 RBP: 00007f7399e11f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f7399fe6038 R14: 00007f7399fe5fa0 R15: 00007ffdfb5803b8