syzbot


general protection fault in fib_dump_info (2)
Status: fixed on 2020/09/16 22:51
Reported-by: syzbot+a61aa19b0c14c8770bd9@syzkaller.appspotmail.com
Fix commit: eeaac363 net: nexthop: don't allow empty NHA_GROUP
First crash: 50d, last: 36d

Cause bisection: introduced by (bisect log):

commit 0b5e2e39739e861fa5fc84ab27a35dbe62a15330
Author: David Ahern <dsahern@gmail.com>
Date: Tue May 26 18:56:16 2020 +0000

  nexthop: Expand nexthop_is_multipath in a few places

Crash: general protection fault in fib_dump_info (log)
Repro: C syz .config
duplicates (1):
Title Repro Bisected Count Last Reported Patched Status
general protection fault in fib_check_nexthop 2 41d 38d 0/17 closed as dup on 2020/08/22 14:22
similar bugs (1):
Kernel Title Repro Bisected Count Last Reported Patched Status
upstream general protection fault in fib_dump_info C 428 1133d 1144d 3/17 fixed on 2017/10/24 06:54

Sample crash report:

Crashes (16):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Maintainers
ci-upstream-kasan-gce 2020/08/23 20:32 upstream c3d8f220 cef5ae68 .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 2020/08/22 06:00 upstream cd02217a 6436ce4b .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 2020/08/21 07:30 upstream da2968ff 1d75fe45 .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 2020/08/21 05:57 upstream da2968ff 1d75fe45 .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 2020/08/21 06:26 net cf96d977 1d75fe45 .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 2020/08/21 06:17 net-next 1e76a2ff 1d75fe45 .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-linux-next-kasan-gce-root 2020/08/23 07:47 linux-next 494d311a 1da71ab0 .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 2020/08/20 02:08 upstream 18445bf4 94b45706 .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
ci-upstream-kasan-gce-386 2020/08/23 14:17 upstream c3d8f220 cef5ae68 .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
ci-upstream-kasan-gce-386 2020/08/20 23:59 upstream da2968ff 1d75fe45 .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
ci-upstream-kasan-gce-386 2020/08/20 21:27 upstream 7eac66d0 1d75fe45 .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
ci-upstream-net-this-kasan-gce 2020/08/18 06:01 net bf2bcd6f 424dd8e7 .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
ci-upstream-net-this-kasan-gce 2020/08/13 18:42 net 96436094 54ce1ed6 .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
ci-upstream-net-this-kasan-gce 2020/08/12 18:42 net 633f5b6b bc15f7db .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
ci-upstream-net-this-kasan-gce 2020/08/09 05:52 net 7c7ab580 f721e4a0 .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
ci-upstream-net-kasan-gce 2020/08/18 05:11 net-next 7fca4dee 424dd8e7 .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