syzbot


KASAN: use-after-free Write in hci_sock_release
Status: upstream: reported C repro on 2018/10/23 14:38
Reported-by: syzbot+b364ed862aa07c74bc62@syzkaller.appspotmail.com
First crash: 1013d, last: 471d

Cause bisection: introduced by (bisect log) :
commit c470abd4fde40ea6a0846a2beab642a578c0b8cd
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date: Sun Feb 19 22:34:00 2017 +0000

  Linux 4.10


Fix bisection: fixed by (bisect log) :
commit f1e67e355c2aafeddf1eac31335709236996d2fe
Author: Thomas Gleixner <tglx@linutronix.de>
Date: Mon Nov 18 13:28:24 2019 +0000

  fs/buffer: Make BH_Uptodate_Lock bit_spin_lock a regular spinlock_t

Patch testing requests:
Created Duration User Patch Repo Result
2021/03/15 02:39 17m ducheng2@gmail.com upstream OK
2019/03/25 19:49 10m xiyou.wangcong@gmail.com upstream report log

Sample crash report:

Crashes (8):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-selinux-root 2019/01/04 09:26 upstream 645ff1e8e704 7da23925 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/01/04 09:07 upstream 645ff1e8e704 7da23925 .config log report
ci-upstream-kasan-gce-smack-root 2019/01/04 00:18 upstream 645ff1e8e704 7da23925 .config log report
ci-upstream-kasan-gce-root 2018/12/19 06:09 upstream ddfbab46539f 4edaba93 .config log report
ci-upstream-kasan-gce-smack-root 2018/11/24 22:50 upstream 7c98a4261827 ecc7c870 .config log report
ci-upstream-kasan-gce-smack-root 2018/11/05 22:11 upstream 651022382c7f 8bd6bd63 .config log report
ci-upstream-kasan-gce-root 2018/11/03 00:58 upstream 8adcc59974b8 8bd6bd63 .config log report
ci-upstream-linux-next-kasan-gce-root 2018/10/23 06:41 linux-next 8c60c36d0b8c ecb386fe .config log report