WARNING in __might

WARNING in __might_sleep
Status: public: reported syz repro on 2019/04/14 09:28
Reported-by: syzbot+807aed9baa8060746b9e@syzkaller.appspotmail.com
First crash: 1286d, last: 948d

similar bugs (3):
Kernel	Title	Repro	Count	Last	Reported	Patched	Status
upstream	WARNING in __might_sleep (2)	C	36	916d	943d	12/22	fixed on 2019/03/06 07:43
upstream	WARNING in __might_sleep (3)		6	817d	826d	0/22	closed as invalid on 2019/05/08 12:35
upstream	WARNING in __might_sleep		6	1190d	1193d	6/22	fixed on 2018/05/08 18:30

Sample crash report:

audit: type=1400 audit(1545609679.903:5): avc:  denied  { associate } for  pid=2065 comm="syz-executor3" name="syz3" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1
hrtimer: interrupt took 45942 ns
sched: DL replenish lagged too much
------------[ cut here ]------------
WARNING: CPU: 0 PID: 4687 at kernel/sched/core.c:7943 __might_sleep+0x149/0x1a0 kernel/sched/core.c:7938
do not call blocking ops when !TASK_RUNNING; state=2 set at [<ffffffff82814aca>] rt_mutex_slowlock+0xea/0x530 kernel/locking/rtmutex.c:1278
Kernel panic - not syncing: panic_on_warn set ...

Shutting down cpus with NMI
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (11):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro
ci-android-49-kasan-gce-root	2018/12/24 00:41	https://android.googlesource.com/kernel/common android-4.9	a2f9236e8131	e3bd7ab8	.config	log	report	syz
ci-android-49-kasan-gce-root	2018/08/29 05:53	https://android.googlesource.com/kernel/common android-4.9	09eb2ba5ed0c	53ff8784	.config	log	report
ci-android-49-kasan-gce-root	2018/08/29 03:36	https://android.googlesource.com/kernel/common android-4.9	09eb2ba5ed0c	b771b17e	.config	log	report
ci-android-49-kasan-gce-root	2018/05/03 14:19	https://android.googlesource.com/kernel/common android-4.9	f679e4d9b77a	9ce14f4b	.config	log	report
ci-android-49-kasan-gce-root	2018/04/29 13:37	https://android.googlesource.com/kernel/common android-4.9	71fce1edd26d	d5a5d045	.config	log	report
ci-android-49-kasan-gce	2018/01/20 00:22	https://android.googlesource.com/kernel/common android-4.9	e12a9c4458ff	fbbdcd92	.config	log	report
ci-android-49-kasan-gce-386	2018/08/26 17:13	https://android.googlesource.com/kernel/common android-4.9	09eb2ba5ed0c	758cd203	.config	log	report
ci-android-49-kasan-gce-386	2018/08/25 10:58	https://android.googlesource.com/kernel/common android-4.9	09eb2ba5ed0c	9be5aa1d	.config	log	report
ci-android-49-kasan-gce-386	2018/08/25 07:39	https://android.googlesource.com/kernel/common android-4.9	09eb2ba5ed0c	9be5aa1d	.config	log	report
ci-android-49-kasan-gce-386	2018/08/24 21:53	https://android.googlesource.com/kernel/common android-4.9	6a1b5923548a	9b0f5c75	.config	log	report
ci-android-49-kasan-gce-386	2018/03/22 09:10	https://android.googlesource.com/kernel/common android-4.9	71df7bbae4d8	95c88d7a	.config	log	report