syzbot


KASAN: use-after-free Write in qdisc_class_hash_insert
Status: closed as invalid on 2020/09/28 07:57
Reported-by: syzbot+@syzkaller.appspotmail.com
First crash: 610d, last: 366d

Cause bisection: introduced by (bisect log) :
commit e41d58185f1444368873d4d7422f7664a68be61d
Author: Dmitry Vyukov <dvyukov@google.com>
Date: Wed Jul 12 21:34:35 2017 +0000

  fault-inject: support systematic fault injection

Crash: KASAN: use-after-free Write in qdisc_class_hash_insert (log)
Repro: C syz .config

Fix bisection: failed (bisect log)
similar bugs (4):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 KASAN: use-after-free Write in qdisc_class_hash_insert 1 615d 615d 0/1 auto-closed as invalid on 2020/03/20 06:18
linux-4.14 KASAN: use-after-free Write in qdisc_class_hash_insert C error 12 76d 619d 0/1 upstream: reported C repro on 2019/11/17 01:10
upstream KASAN: use-after-free Write in qdisc_class_hash_insert (2) 1 39d 39d 19/22 internal: reported on 2021/06/19 13:08
linux-4.19 KASAN: use-after-free Write in qdisc_class_hash_insert (2) 1 411d 411d 0/1 auto-closed as invalid on 2020/10/10 02:06

Sample crash report:

Crashes (8):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-smack-root 2019/11/26 14:08 upstream 0be0ee71816b f746151a .config log report syz C
ci-upstream-kasan-gce 2020/07/27 01:20 upstream 04300d66f0a0 51265195 .config log report
ci-upstream-kasan-gce-selinux-root 2020/06/24 19:25 upstream 7ae77150d94d 54566aff .config log report
ci-upstream-kasan-gce 2020/04/08 05:40 upstream 763dede1b248 db9bcd4b .config log report
ci-upstream-kasan-gce-selinux-root 2020/03/23 09:04 upstream 67d584e33e54 78267cec .config log report
ci-upstream-kasan-gce-selinux-root 2020/01/31 08:14 upstream 9f68e3655aae 5ed23f9a .config log report
ci-upstream-kasan-gce-smack-root 2019/11/26 13:04 upstream 0be0ee71816b f746151a .config log report
ci-upstream-net-kasan-gce 2020/03/11 01:46 net-next 1e09e5818b3a 35f53e45 .config log report