------------[ cut here ]------------
ODEBUG: free active (active state 0) object: ffff888024ef4978 object type: timer_list hint: hci_cmd_timeout+0x0/0x1e0
WARNING: CPU: 0 PID: 8863 at lib/debugobjects.c:518 debug_print_object+0x17a/0x1f0 lib/debugobjects.c:515
Modules linked in:
CPU: 0 UID: 0 PID: 8863 Comm: syz.3.842 Not tainted 6.11.0-rc3-syzkaller-00437-g399117317001 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:debug_print_object+0x17a/0x1f0 lib/debugobjects.c:515
Code: e8 cb 37 42 fd 4c 8b 0b 48 c7 c7 c0 72 60 8c 48 8b 74 24 08 48 89 ea 44 89 e1 4d 89 f8 ff 34 24 e8 2b 1b 9d fc 48 83 c4 08 90 <0f> 0b 90 90 ff 05 bc 76 5f 0b 48 83 c4 10 5b 41 5c 41 5d 41 5e 41
RSP: 0018:ffffc90005047838 EFLAGS: 00010282
RAX: 0e465ca4c5c88000 RBX: ffffffff8c0cc1a0 RCX: 0000000000040000
RDX: ffffc90009699000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffffff8c607440 R08: ffffffff8155b4d2 R09: fffffbfff1cfa0e0
R10: dffffc0000000000 R11: fffffbfff1cfa0e0 R12: 0000000000000000
R13: ffffffff8c607358 R14: dffffc0000000000 R15: ffff888024ef4978
FS:  00007f6171e826c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffeb5afebc8 CR3: 000000007b016000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __debug_check_no_obj_freed lib/debugobjects.c:990 [inline]
 debug_check_no_obj_freed+0x45b/0x580 lib/debugobjects.c:1020
 slab_free_hook mm/slub.c:2219 [inline]
 slab_free mm/slub.c:4473 [inline]
 kfree+0x10f/0x360 mm/slub.c:4594
 hci_release_dev+0x1525/0x16b0 net/bluetooth/hci_core.c:2753
 bt_host_release+0x83/0x90 net/bluetooth/hci_sysfs.c:94
 device_release+0x99/0x1c0
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x22f/0x480 lib/kobject.c:737
 hci_dev_put include/net/bluetooth/hci_core.h:1586 [inline]
 hci_dev_cmd+0x296/0xa50 net/bluetooth/hci_core.c:763
 sock_do_ioctl+0x158/0x460 net/socket.c:1222
 sock_ioctl+0x629/0x8e0 net/socket.c:1341
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6171179e79
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:00007f6171e82038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f6171315f80 RCX: 00007f6171179e79
RDX: 0000000020000240 RSI: 00000000400448dd RDI: 0000000000000008
RBP: 00007f61711e7916 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6171315f80 R15: 00007fff88fa0c08
 </TASK>