syzbot


WARNING in get_signal
Status: fixed on 2020/11/16 12:12
Reported-by: syzbot+3485e3773f7da290eecc@syzkaller.appspotmail.com
Fix commit: 7b3c36fc4c23 ptrace: fix task_join_group_stop() for the case when current is traced
First crash: 430d, last: 428d

Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: WARNING in sysfs_warn_dup (log)
Repro: C syz .config
similar bugs (4):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-44 WARNING in get_signal syz 15 1033d 1405d 0/2 closed as invalid on 2019/03/28 00:23
linux-4.14 WARNING in get_signal C error 3 420d 897d 0/1 upstream: reported C repro on 2019/06/23 01:46
android-44 WARNING in get_signal (2) 5 748d 927d 0/2 auto-closed as invalid on 2020/03/18 06:40
linux-4.19 WARNING in get_signal C error 2 447d 907d 0/1 upstream: reported C repro on 2019/06/13 12:31

Sample crash report:

Crashes (2):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2020/10/02 13:45 upstream fcadab740480 9602ddf4 .config log report syz C
ci-upstream-kasan-gce-386 2020/10/04 17:34 upstream 22fbc037cd32 5ef9c291 .config log report syz C