syzbot


INFO: rcu detected stall in netlink_sendmsg (3)
Status: fixed on 2020/02/18 14:31
Reported-by: syzbot+@syzkaller.appspotmail.com
Fix commit: d9e15a27 pkt_sched: fq: do not accept silly TCA_FQ_QUANTUM
First crash: 281d, last: 227d

Cause bisection: the bug happens on the oldest tested release
Crash: INFO: rcu detected stall in corrupted (log)
Repro: C syz .config
similar bugs (4):
Kernel Title Repro Bisected Count Last Reported Patched Status
upstream INFO: rcu detected stall in netlink_sendmsg (2) C cause 11 377d 383d 14/17 fixed on 2019/10/09 10:54
linux-4.19 INFO: rcu detected stall in netlink_sendmsg C fix 3 375d 380d 1/1 fixed on 2019/12/10 03:52
upstream INFO: rcu detected stall in netlink_sendmsg syz 83 586d 642d 12/17 fixed on 2019/03/06 07:43
upstream INFO: rcu detected stall in netlink_sendmsg (4) C cause 11 31d 178d 0/17 upstream: reported C repro on 2020/03/31 17:43

Sample crash report:

Crashes (6):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Maintainers
ci-upstream-kasan-gce-root 2019/12/21 09:15 upstream 6398b9fc bc586918 .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
ci-upstream-net-this-kasan-gce 2019/12/20 02:23 net 6fa9a115 36650b4b .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
ci-upstream-kasan-gce-selinux-root 2020/01/26 16:14 upstream 2821e26f dd56146d .config log report a@unstable.cc, b.a.t.m.a.n@lists.open-mesh.org, davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, mareklindner@neomailbox.ch, netdev@vger.kernel.org, sven@narfation.org, sw@simonwunderlich.de
ci-upstream-kasan-gce 2020/01/22 10:27 upstream d96d875e 8eda0b95 .config log report a@unstable.cc, b.a.t.m.a.n@lists.open-mesh.org, davem@davemloft.net, linux-kernel@vger.kernel.org, mareklindner@neomailbox.ch, netdev@vger.kernel.org, sven@narfation.org, sw@simonwunderlich.de
ci-upstream-net-kasan-gce 2020/02/11 09:48 net-next fdfa3a67 084454ae .config log report a@unstable.cc, b.a.t.m.a.n@lists.open-mesh.org, davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, mareklindner@neomailbox.ch, netdev@vger.kernel.org, sven@narfation.org, sw@simonwunderlich.de
ci-upstream-net-kasan-gce 2020/02/03 10:31 net-next 9f68e365 93e5e335 .config log report a@unstable.cc, b.a.t.m.a.n@lists.open-mesh.org, davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, mareklindner@neomailbox.ch, netdev@vger.kernel.org, sven@narfation.org, sw@simonwunderlich.de