syzbot


KASAN: use-after-free Read in tick_sched_handle (3)
Status: fixed on 2019/11/09 22:22
Reported-by: syzbot+999bca54de2ee169c021@syzkaller.appspotmail.com
Fix commit: bc6e019b6ee6 fou: Prevent unbounded recursion in GUE error handler also with UDP-Lite
First crash: 1198d, last: 1055d

Fix bisection: fixed by (bisect log) :
commit bc6e019b6ee65ff4ebf3ca272f774cf6c67db669
Author: Stefano Brivio <sbrivio@redhat.com>
Date: Thu Jan 3 20:43:34 2019 +0000

  fou: Prevent unbounded recursion in GUE error handler also with UDP-Lite

similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KASAN: use-after-free Read in tick_sched_handle (2) 1 1407d 1407d 0/22 closed as invalid on 2018/02/14 13:55
upstream KASAN: use-after-free Read in tick_sched_handle 1 1571d 1495d 0/22 closed as invalid on 2017/10/31 11:38

Sample crash report:

Crashes (12):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2019/01/14 02:49 upstream 1c7fc5cbc339 c3f3344c .config log report syz C
ci-upstream-kasan-gce-root 2019/01/14 01:00 upstream 6b529fb0a3ea c3f3344c .config log report syz C
ci-upstream-kasan-gce-386 2019/01/14 03:20 upstream 6b529fb0a3ea c3f3344c .config log report syz C
ci-upstream-net-kasan-gce 2018/12/17 00:33 net-next 9c46ae0ea1ee def91db3 .config log report syz C
ci-upstream-net-kasan-gce 2018/11/23 23:01 net-next 2882b06ddaa5 eb9ed731 .config log report syz C
ci-upstream-net-kasan-gce 2018/11/19 15:04 net-next bae4e109837b adf636a8 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2018/12/23 19:22 linux-next 6648e120dd1a e3bd7ab8 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2018/12/28 00:17 upstream b71acb0e3721 af317504 .config log report
ci-upstream-net-this-kasan-gce 2019/01/04 16:08 net 96d4f267e40f 0127e3ba .config log report
ci-upstream-net-kasan-gce 2018/12/16 13:14 net-next c151acc6e9ff def91db3 .config log report
ci-upstream-net-kasan-gce 2018/12/12 11:32 net-next e1a76515b0c2 c3b10a5d .config log report
ci-upstream-net-kasan-gce 2018/08/24 20:14 net-next 2ad0d5269970 9b0f5c75 .config log report