syzbot


KASAN: use-after-free Read in vlan_dev_get_iflink
Status: upstream: reported C repro on 2020/07/23 18:12
Reported-by: syzbot+d702fd2351989927037c@syzkaller.appspotmail.com
First crash: 272d, last: 102d

Cause bisection: failed (bisect log)

Fix bisection: failed (bisect log)
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 KASAN: use-after-free Read in vlan_dev_get_iflink C 11 17d 373d 0/1 upstream: reported C repro on 2020/04/13 08:02
linux-4.14 KASAN: use-after-free Read in vlan_dev_get_iflink C 12 9d12h 361d 0/1 upstream: reported C repro on 2020/04/25 21:56
Patch testing requests:
Created Duration User Patch Repo Result
2020/07/24 04:53 17m xiyou.wangcong@gmail.com https://github.com/congwang/linux.git net OK
2020/07/24 01:59 17m xiyou.wangcong@gmail.com https://github.com/congwang/linux.git net report log
2020/07/23 20:09 10m xiyou.wangcong@gmail.com https://github.com/congwang/linux.git net report 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-root 2020/08/10 12:00 upstream 9420f1ce 70301872 .config log report syz C
ci-upstream-kasan-gce-root 2020/07/25 18:28 upstream 68845a55 1f7cc1ca .config log report syz C
ci-upstream-kasan-gce 2020/07/23 08:38 upstream 8c26c87b 340ea530 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/12/05 20:21 upstream b3298500 50503117 .config log report info
ci-upstream-kasan-gce 2020/11/16 23:22 upstream 09162bc3 1bf9a662 .config log report info
ci-upstream-kasan-gce-smack-root 2020/10/02 17:58 upstream 472e5b05 4969d6ca .config log report info
ci-upstream-kasan-gce-root 2020/09/11 09:21 upstream 581cb3a2 adfb8b4e .config log report
ci-upstream-kasan-gce-smack-root 2020/09/09 13:25 upstream 34d4ddd3 0ea7a887 .config log report
ci-upstream-kasan-gce 2020/08/30 10:16 upstream 1127b219 d5a3ae1f .config log report
ci-upstream-kasan-gce-smack-root 2020/08/13 04:21 upstream fb893de3 bc15f7db .config log report
ci-upstream-net-this-kasan-gce 2021/01/09 09:11 net 6279d812 c104d4a3 .config log report info
ci-upstream-linux-next-kasan-gce-root 2020/09/24 08:43 linux-next dcf2427b 54289b08 .config log report info
ci-upstream-linux-next-kasan-gce-root 2020/09/02 03:50 linux-next b36c9697 abf9ba4f .config log report