syzbot


general protection fault in inet6_set_link_af
Status: internal: reported C repro on 2020/02/05 09:10
Reported-by: syzbot+@syzkaller.appspotmail.com
Fix commit: db3fa271 ipv6/addrconf: fix potential NULL deref in inet6_set_link_af()
Patched on: [ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-gce-leak ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-linux-next-kasan-gce-root ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci2-upstream-kcsan-gce ci2-upstream-usb], missing on: [ci-qemu-upstream ci-qemu-upstream-386 ci-upstream-kmsan-gce]
First crash: 12d, last: 8d04h

Cause bisection: introduced by (bisect log):

commit 7dc2bccab0ee37ac28096b8fcdc390a679a15841
Author: Maxim Mikityanskiy <maximmi@mellanox.com>
Date: Tue May 21 06:40:04 2019 +0000

  Validate required parameters in inet6_validate_link_af

Crash: general protection fault in inet6_set_link_af (log)
Repro: C syz .config
similar bugs (1):
Kernel Title Repro Bisected Count Last Reported Patched Status
android-54 general protection fault in inet6_set_link_af C 1 12d 12d 0/1 upstream: reported C repro on 2020/02/05 07:42

Sample crash report:

Crashes (8):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-kasan-gce-selinux-root 2020/02/09 06:18 upstream d4f309ca 06150bf1 .config log report syz C davem@davemloft.net, kuba@kernel.org, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, yoshfuji@linux-ipv6.org
ci-upstream-kasan-gce-root 2020/02/07 16:22 upstream 90568ecf 06150bf1 .config log report syz C davem@davemloft.net, kuba@kernel.org, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, yoshfuji@linux-ipv6.org
ci-upstream-kasan-gce 2020/02/06 19:56 upstream 4c46bef2 c91cbc9d .config log report syz C davem@davemloft.net, kuba@kernel.org, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, yoshfuji@linux-ipv6.org
ci-upstream-kasan-gce-smack-root 2020/02/06 07:35 upstream 4c7d00cc 662cf49a .config log report syz C davem@davemloft.net, kuba@kernel.org, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, yoshfuji@linux-ipv6.org
ci-upstream-kasan-gce-386 2020/02/06 00:27 upstream 6992ca0d 662cf49a .config log report syz C davem@davemloft.net, kuba@kernel.org, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, yoshfuji@linux-ipv6.org
ci-upstream-net-this-kasan-gce 2020/02/05 09:09 net 33b40134 93e5e335 .config log report syz C davem@davemloft.net, kuba@kernel.org, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, yoshfuji@linux-ipv6.org
ci-upstream-net-kasan-gce 2020/02/06 00:42 net-next 33b40134 662cf49a .config log report syz C davem@davemloft.net, kuba@kernel.org, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, yoshfuji@linux-ipv6.org
ci-upstream-kasan-gce 2020/02/07 01:06 upstream 4c46bef2 c91cbc9d .config log report davem@davemloft.net, kuba@kernel.org, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, yoshfuji@linux-ipv6.org