general protection fault in debugfs

Kernel	Title	Count	Last	Reported	Patched	Status
linux-4.14	general protection fault in debugfs_remove (2)	1	1470d	1470d	0/1	auto-closed as invalid on 2020/08/14 06:05
linux-4.19	general protection fault in debugfs_remove	1	1739d	1739d	0/1	auto-closed as invalid on 2019/11/19 00:32
linux-4.19	general protection fault in debugfs_remove (2)	1	1332d	1332d	0/1	auto-closed as invalid on 2020/12/30 03:06
upstream	general protection fault in debugfs_remove fs	1	1837d	1828d	0/26	auto-closed as invalid on 2019/10/12 06:37

kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 24 Comm: kworker/0:1 Not tainted 4.14.154 #0 kobject: '7:0' (ffff888089aa96d0): kobject_add_internal: parent: 'bdi', set: 'devices' Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events __blk_release_queue task: ffff8880a9e58640 task.stack: ffff8880a9e60000 RIP: 0010:__lock_acquire+0x1ba/0x4620 kernel/locking/lockdep.c:3365 kobject: '7:0' (ffff888089aa96d0): kobject_uevent_env RSP: 0018:ffff8880a9e67a30 EFLAGS: 00010006 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000028 RSI: 0000000000000000 RDI: 0000000000000001 RBP: ffff8880a9e67bd8 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: ffff8880a9e58640 R12: 0000000000000140 R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 kobject: '7:0' (ffff888089aa96d0): fill_kobj_path: path = '/devices/virtual/bdi/7:0' CR2: 0000000000625208 CR3: 0000000095812000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kobject: 'loop0' (ffff88808fe08520): kobject_add_internal: parent: 'block', set: 'devices' lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994 down_write+0x38/0x90 kernel/locking/rwsem.c:54 kobject: 'loop0' (ffff88808fe08520): kobject_uevent_env inode_lock include/linux/fs.h:718 [inline] debugfs_remove fs/debugfs/inode.c:663 [inline] debugfs_remove+0x85/0x120 fs/debugfs/inode.c:654 blk_trace_free+0x62/0x140 kernel/trace/blktrace.c:325 blk_trace_cleanup kernel/trace/blktrace.c:351 [inline] blk_trace_remove+0x59/0x80 kernel/trace/blktrace.c:364 blk_trace_shutdown+0x4f/0x60 kernel/trace/blktrace.c:728 __blk_release_queue+0x22e/0x4d0 block/blk-sysfs.c:830 process_one_work+0x863/0x1600 kernel/workqueue.c:2114 kobject: 'loop0' (ffff88808fe08520): kobject_uevent_env: uevent_suppress caused the event to drop! worker_thread+0x5d9/0x1050 kernel/workqueue.c:2248 kthread+0x319/0x430 kernel/kthread.c:232 kobject: 'holders' (ffff88809f446d80): kobject_add_internal: parent: 'loop0', set: '<NULL>' ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 Code: kobject: 'slaves' (ffff8880611dda80): kobject_add_internal: parent: 'loop0', set: '<NULL>' 00 c7 40 18 00 00 00 00 48 8d 65 d8 44 89 e0 kobject: 'loop0' (ffff88808fe08520): kobject_uevent_env 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 b8 00 00 00 00 kobject: 'loop0' (ffff88808fe08520): fill_kobj_path: path = '/devices/virtual/block/loop0' 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 kobject: 'queue' (ffff888060790e08): kobject_add_internal: parent: 'loop0', set: '<NULL>' ac 2e 00 00 49 81 3c 24 a0 c2 5d 88 kobject: 'mq' (ffff888060790e48): kobject_add_internal: parent: 'loop0', set: '<NULL>' 0f 84 43 RIP: __lock_acquire+0x1ba/0x4620 kernel/locking/lockdep.c:3365 RSP: ffff8880a9e67a30 ---[ end trace be2c1426ecb70b09 ]--- kobject: 'mq' (ffff888060790e48): kobject_uevent_env