WARNING in __might_sleep

Status: public: reported syz repro on 2019/04/14 09:28
Reported-by: syzbot+807aed9baa8060746b9e@syzkaller.appspotmail.com
First crash: 3122d, last: 2784d
▶ ▼ Similar bugs (3)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in __might_sleep (2) serial -1 syz, C 36 2752d 2779d 11/29 fixed on 2019/03/06 07:43
upstream WARNING in __might_sleep (3) kernel -1 6 2653d 2662d 0/29 closed as invalid on 2019/05/08 12:35
upstream WARNING in __might_sleep kernel -1 6 3026d 3029d 5/29 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):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2018/12/24 00:41 https://android.googlesource.com/kernel/common android-4.9 a2f9236e8131 e3bd7ab8 .config console 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 console 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 console 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 console 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 console log report ci-android-49-kasan-gce-root
2018/01/20 00:22 https://android.googlesource.com/kernel/common android-4.9 e12a9c4458ff fbbdcd92 .config console log report ci-android-49-kasan-gce
2018/08/26 17:13 https://android.googlesource.com/kernel/common android-4.9 09eb2ba5ed0c 758cd203 .config console 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 console 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 console 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 console 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 console log report ci-android-49-kasan-gce-386
* Struck through repros no longer work on HEAD.