syzbot


INFO: rcu detected stall in snd_seq_write
Status: fixed on 2019/08/14 02:14
Reported-by: syzbot+97aae04ce27e39cbfca9@syzkaller.appspotmail.com
Fix commit: ede34f397ddb ALSA: seq: Break too long mutex context in the write loop
First crash: 1248d, last: 916d

Cause bisection: failed (bisect log)
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: rcu detected stall in snd_seq_write (2) syz done 21 73d 86d 19/22 upstream: reported syz repro on 2021/10/31 17:20
linux-4.19 INFO: rcu detected stall in snd_seq_write 1 775d 775d 0/1 auto-closed as invalid on 2020/04/10 16:27

Sample crash report:

Crashes (18):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-linux-next-kasan-gce-root 2018/08/26 18:47 linux-next e27bc174c9c6 758cd203 .config log report syz
ci-upstream-kasan-gce-selinux-root 2019/07/24 11:42 upstream c6dd78fcb8ee 32329ceb .config log report
ci-upstream-kasan-gce-root 2019/07/24 07:06 upstream c6dd78fcb8ee de453f34 .config log report
ci-upstream-kasan-gce-selinux-root 2019/07/24 01:11 upstream c6dd78fcb8ee de453f34 .config log report
ci-upstream-kasan-gce-smack-root 2019/07/23 15:56 upstream c6dd78fcb8ee de453f34 .config log report
ci-upstream-kasan-gce-selinux-root 2019/07/23 13:48 upstream c6dd78fcb8ee de453f34 .config log report
ci-upstream-kasan-gce-root 2019/07/23 10:58 upstream c6dd78fcb8ee 55e0c077 .config log report
ci-upstream-kasan-gce-selinux-root 2019/07/23 03:07 upstream c6dd78fcb8ee 55e0c077 .config log report
ci-upstream-kasan-gce-root 2019/07/23 03:07 upstream c6dd78fcb8ee 55e0c077 .config log report
ci-upstream-kasan-gce-root 2019/07/22 07:29 upstream c6dd78fcb8ee b3c615f5 .config log report
ci-upstream-kasan-gce-smack-root 2019/04/28 01:25 upstream 037904a22bf8 b617407b .config log report
ci-upstream-kasan-gce-smack-root 2019/04/25 01:58 upstream cd8dead0c394 8e3c52b1 .config log report
ci-upstream-kasan-gce-smack-root 2019/04/12 10:08 upstream 2d06b235815e 8916f5e1 .config log report
ci-upstream-kasan-gce-root 2019/01/08 16:16 upstream 3bd6e94bec12 37dd2683 .config log report
ci-upstream-kasan-gce-root 2018/12/18 13:27 upstream 1a9430db2835 4edaba93 .config log report
ci-upstream-kasan-gce-root 2018/12/18 12:29 upstream 1a9430db2835 4edaba93 .config log report
ci-upstream-kasan-gce-root 2018/12/18 08:15 upstream 1a9430db2835 def91db3 .config log report
ci-upstream-linux-next-kasan-gce-root 2018/12/14 14:13 linux-next d14b746c6c1c 7624ddd6 .config log report