syzbot


KASAN: use-after-free Read in blkdev_bio_end_io
Status: fixed on 2020/06/30 18:57
Reported-by: syzbot+2a99a1bb75e9116ec20c@syzkaller.appspotmail.com
Fix commit: 7b6620d7db56 block: remove REQ_NOWAIT_INLINE
First crash: 855d, last: 840d

Cause bisection: introduced by (bisect log) :
commit b9a1e627405d68d475a3c1f35e685ccfb5bbe668
Author: Cong Wang <xiyou.wangcong@gmail.com>
Date: Thu Jul 4 00:21:13 2019 +0000

  hsr: implement dellink to clean up resources

Crash: general protection fault in send_hsr_supervision_frame (log)
Repro: C syz .config

Fix bisection: failed (bisect log)

Sample crash report:

Crashes (13):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2019/08/02 07:51 upstream 1e78030e5e5b 835dffe7 .config log report syz C
ci-upstream-kasan-gce-smack-root 2019/08/02 05:12 upstream 1e78030e5e5b 835dffe7 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/08/15 03:32 upstream 41de59634046 0d298d6b .config log report
ci-upstream-kasan-gce-selinux-root 2019/08/12 08:23 upstream d45331b00ddb acb51638 .config log report
ci-upstream-kasan-gce-root 2019/08/11 04:50 upstream 451577f3e3a9 acb51638 .config log report
ci-upstream-kasan-gce-smack-root 2019/08/10 10:26 upstream 7f20fd23377a acb51638 .config log report
ci-upstream-kasan-gce 2019/08/09 09:47 upstream b678c568c561 ede31a9b .config log report
ci-upstream-kasan-gce-root 2019/08/06 11:59 upstream 0eb0ce0a78e1 6affd8e8 .config log report
ci-upstream-kasan-gce-smack-root 2019/08/03 18:00 upstream dcb8cfbd8fe9 6affd8e8 .config log report
ci-upstream-kasan-gce 2019/08/03 00:17 upstream 755f1fed27f4 6affd8e8 .config log report
ci-upstream-kasan-gce 2019/08/02 03:32 upstream 1e78030e5e5b 835dffe7 .config log report
ci-upstream-kasan-gce-smack-root 2019/08/02 03:29 upstream 1e78030e5e5b 835dffe7 .config log report
ci-upstream-kasan-gce-386 2019/08/17 09:31 upstream 2d63ba3e41db 8fd428a1 .config log report