syzbot


INFO: task hung in ubi_detach_mtd_dev
Status: fixed on 2020/11/16 12:12
Reported-by: syzbot+853639d0cb16c31c7a14@syzkaller.appspotmail.com
Fix commit: d005f8c6588e ubi: check kthread_should_stop() after the setting of task state
First crash: 653d, last: 563d

Cause bisection: failed (bisect log)

Fix bisection: failed (bisect log)
similar bugs (3):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 INFO: task hung in ubi_detach_mtd_dev (2) syz error 1 507d 507d 0/1 upstream: reported syz repro on 2020/07/15 16:30
linux-4.14 INFO: task hung in ubi_detach_mtd_dev 6 518d 610d 0/1 auto-closed as invalid on 2020/11/01 05:07
linux-4.19 INFO: task hung in ubi_detach_mtd_dev 1 648d 648d 0/1 auto-closed as invalid on 2020/06/24 16:43

Sample crash report:

Crashes (4):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-smack-root 2020/04/21 23:59 upstream 189522da8b3a 2e44d63e .config log report syz
ci-upstream-kasan-gce-root 2020/02/22 17:20 upstream 54dedb5b571d 2c36e7a7 .config log report syz
ci-upstream-linux-next-kasan-gce-root 2020/05/20 09:18 linux-next ac935d227366 67fa1f59 .config log report syz
ci-upstream-linux-next-kasan-gce-root 2020/02/20 02:57 linux-next 1d7f85df0f9c b690a6e3 .config log report