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ODEBUG: free active (active state 0) object: ffff8881bf46d460 object type: timer_list hint: hci_devcd_timeout+0x0/0x360
WARNING: lib/debugobjects.c:632 at debug_check_no_obj_freed+0x358/0x530, CPU#0: syz.3.1341/9202
Modules linked in:
CPU: 0 UID: 0 PID: 9202 Comm: syz.3.1341 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:debug_check_no_obj_freed+0x39c/0x530
Code: 48 89 04 24 e8 f5 18 5f fd 48 8b 04 24 4c 8b 4d 00 4c 89 ef 48 c7 c6 00 b4 28 8c 48 c7 c2 80 b9 28 8c 8b 4c 24 1c 4d 89 f8 50 <67> 48 0f b9 3a 48 83 c4 08 4c 8b 6c 24 10 48 b9 00 00 00 00 00 fc
RSP: 0018:ffffc900038d7800 EFLAGS: 00010246
RAX: ffffffff8ab88e20 RBX: ffffffff9a519a00 RCX: 0000000000000000
RDX: ffffffff8c28b980 RSI: ffffffff8c28b400 RDI: ffffffff901c77e0
RBP: ffffffff8bcf2a40 R08: ffff8881bf46d460 R09: ffffffff8bcf3d60
R10: dffffc0000000000 R11: ffffffff81b14bb0 R12: 0000000000000003
R13: ffffffff901c77e0 R14: ffff8881bf46d000 R15: ffff8881bf46d460
FS:  00007f2d0d5a86c0(0000) GS:ffff88818de52000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f12c45f7ff8 CR3: 0000000115754000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 __free_frozen_pages+0x534/0xda0
 bt_host_release+0x82/0x90
 device_release+0x9e/0x1d0
 kobject_put+0x222/0x550
 vhci_release+0x175/0x1c0
 __fput+0x41f/0xa40
 task_work_run+0x1d9/0x270
 do_exit+0x73a/0x2460
 do_group_exit+0x22d/0x2f0
 get_signal+0x121b/0x12c0
 arch_do_signal_or_restart+0xbb/0x810
 exit_to_user_mode_loop+0xa3/0x5e0
 do_syscall_64+0x357/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2d0c75e84e
Code: Unable to access opcode bytes at 0x7f2d0c75e824.
RSP: 002b:00007f2d0d5a7f58 EFLAGS: 00000246 ORIG_RAX: 00000000000000e6
RAX: fffffffffffffdfc RBX: 00007f2d0d5a86c0 RCX: 00007f2d0c75e84e
RDX: 00007f2d0d5a7fb0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f2d0c83500c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2d0ca26038 R14: 00007f2d0ca25fa0 R15: 00007ffc65e739a8
 </TASK>
