syzbot


INFO: rcu detected stall in addrconf_dad_work
Status: fixed on 2019/12/06 10:33
Reported-by: syzbot+360efe4e8b5dbf168f54@syzkaller.appspotmail.com
Fix commit: cc243e24 sch_hhf: ensure quantum and hhf_non_hh_weight are non-zero
First crash: 261d, last: 254d

Fix bisection: fixed by (bisect log):

commit cc243e2427cef2a5dd7367cb0e0b846503350ffe
Author: Cong Wang <xiyou.wangcong@gmail.com>
Date: Sun Sep 8 20:40:51 2019 +0000

  sch_hhf: ensure quantum and hhf_non_hh_weight are non-zero

similar bugs (6):
Kernel Title Repro Bisected Count Last Reported Patched Status
upstream INFO: rcu detected stall in addrconf_dad_work (4) 8 137d 137d 0/17 closed as invalid on 2020/01/09 08:13
upstream INFO: rcu detected stall in addrconf_dad_work (3) 6 137d 137d 0/17 closed as invalid on 2020/01/08 05:23
upstream INFO: rcu detected stall in addrconf_dad_work (2) 15 172d 174d 0/17 closed as invalid on 2019/12/04 14:14
upstream INFO: rcu detected stall in addrconf_dad_work C cause 126 252d 257d 14/17 fixed on 2019/10/09 10:54
linux-4.19 INFO: rcu detected stall in addrconf_dad_work (2) C fix 1 156d 156d 1/1 fixed on 2020/01/19 15:05
linux-4.19 INFO: rcu detected stall in addrconf_dad_work C fix 19 248d 260d 1/1 fixed on 2019/12/07 19:18

Sample crash report:

Crashes (18):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci2-linux-4-14 2019/09/13 22:32 linux-4.14.y e2cd24b6 32d59357 .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci2-linux-4-14 2019/09/13 10:18 linux-4.14.y e2cd24b6 40fa42bc .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci2-linux-4-14 2019/09/10 16:18 linux-4.14.y e2cd24b6 a60cb4cd .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci2-linux-4-14 2019/09/10 06:30 linux-4.14.y 414510bc a60cb4cd .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci2-linux-4-14 2019/09/10 01:21 linux-4.14.y 414510bc a60cb4cd .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci2-linux-4-14 2019/09/09 20:57 linux-4.14.y 414510bc a60cb4cd .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci2-linux-4-14 2019/09/09 17:21 linux-4.14.y 414510bc a60cb4cd .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci2-linux-4-14 2019/09/09 14:10 linux-4.14.y 414510bc a60cb4cd .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci2-linux-4-14 2019/09/09 05:04 linux-4.14.y 414510bc a60cb4cd .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci2-linux-4-14 2019/09/09 03:09 linux-4.14.y 414510bc a60cb4cd .config log report syz C davem@davemloft.net, dsahern@gmail.com, edumazet@google.com, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, lorenzo.bianconi@redhat.com, netdev@vger.kernel.org, vasilykh@arista.com
ci2-linux-4-14 2019/09/08 22:28 linux-4.14.y 414510bc a60cb4cd .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci2-linux-4-14 2019/09/08 16:42 linux-4.14.y 414510bc a60cb4cd .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci2-linux-4-14 2019/09/08 02:41 linux-4.14.y 414510bc a60cb4cd .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci2-linux-4-14 2019/09/08 00:04 linux-4.14.y 414510bc a60cb4cd .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci2-linux-4-14 2019/09/07 19:29 linux-4.14.y 414510bc a60cb4cd .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci2-linux-4-14 2019/09/07 18:00 linux-4.14.y 414510bc a60cb4cd .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci2-linux-4-14 2019/09/07 07:05 linux-4.14.y 414510bc a60cb4cd .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci2-linux-4-14 2019/09/07 00:24 linux-4.14.y 414510bc acb5b744 .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com