WARNING: lock held when returning to user space! (3)

WARNING: lock held when returning to user space! (3)
Status: closed as dup on 2019/01/02 11:24
Reported-by: syzbot+42e36e1ae3de3f22a7ed@syzkaller.appspotmail.com
First crash: 524d, last: 524d

Duplicate of (1):
Title	Repro	Bisected	Count	Last	Reported
WARNING: lock held when returning to user space in set_property_atomic	C		145	510d	523d

similar bugs (2):
Kernel	Title	Repro	Bisected	Count	Last	Reported	Patched	Status
upstream	WARNING: lock held when returning to user space! (2)	C		9	757d	758d	9/17	fixed on 2018/07/09 18:05
upstream	WARNING: lock held when returning to user space!	C		40	776d	791d	6/17	fixed on 2018/05/08 18:30

Sample crash report:

RBP: 00000000006cf018 R08: 0000000000000001 R09: 0000000000000032
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005
R13: ffffffffffffffff R14: 0000000000000000 R15: 0000000000000000

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WARNING: lock held when returning to user space!
4.20.0+ #395 Not tainted
------------------------------------------------
syz-executor520/8085 is leaving the kernel with locks still held!

Crashes (2):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro
ci-upstream-kasan-gce	2018/12/29 22:08	upstream	903b77c6	a40793d7	.config	log	report	syz	C
ci-upstream-kasan-gce-386	2018/12/29 22:09	upstream	903b77c6	a40793d7	.config	log	report	syz	C