syzbot


INFO: rcu detected stall in netlink_sendmsg (4)
Status: upstream: reported C repro on 2020/03/31 17:43
Reported-by: syzbot+0fb70e87d8e0ac278fe9@syzkaller.appspotmail.com
First crash: 136d, last: 17d

Cause bisection: introduced by (bisect log):

commit 5a781ccbd19e4664babcbe4b4ead7aa2b9283d22
Author: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Date: Sat Sep 29 00:59:43 2018 +0000

  tc: Add support for configuring the taprio scheduler

Crash: no output from test machine (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 332d 338d 14/17 fixed on 2019/10/09 10:54
linux-4.19 INFO: rcu detected stall in netlink_sendmsg C fix 3 330d 335d 1/1 fixed on 2019/12/10 03:52
upstream INFO: rcu detected stall in netlink_sendmsg (3) C cause 6 183d 236d 16/17 fixed on 2020/02/18 14:31
upstream INFO: rcu detected stall in netlink_sendmsg syz 83 541d 597d 12/17 fixed on 2019/03/06 07:43

Sample crash report:

Crashes (11):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-kasan-gce-root 2020/07/06 10:25 upstream 7cc2a8ea 51095195 .config log report syz C linux-kernel@vger.kernel.org, mingo@redhat.com, rostedt@goodmis.org
ci-upstream-net-kasan-gce 2020/07/06 08:15 net-next e44f65fd 51095195 .config log report syz C linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-linux-next-kasan-gce-root 2020/07/06 06:09 linux-next 9e50b94b 51095195 .config log report syz C linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-root 2020/07/26 02:00 upstream 23ee3e4e 1f7cc1ca .config log report fweisbec@gmail.com, linux-kernel@vger.kernel.org, mingo@kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce 2020/07/08 10:27 upstream 7cc2a8ea 51095195 .config log report linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-root 2020/07/06 17:52 upstream 7cc2a8ea 51095195 .config log report fweisbec@gmail.com, linux-kernel@vger.kernel.org, mingo@kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-selinux-root 2020/06/26 22:00 upstream 4a21185c aea82c00 .config log report fweisbec@gmail.com, linux-kernel@vger.kernel.org, mingo@kernel.org, tglx@linutronix.de
ci-upstream-net-this-kasan-gce 2020/05/06 07:04 net 38212bb3 35b8eb30 .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-this-kasan-gce 2020/04/17 13:39 net 2fcd8014 18397578 .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-bpf-next-kasan-gce 2020/03/29 09:57 bpf-next ae661dec 05736b29 .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-linux-next-kasan-gce-root 2020/07/06 02:41 linux-next 9e50b94b 51095195 .config log report fweisbec@gmail.com, linux-kernel@vger.kernel.org, mingo@kernel.org, tglx@linutronix.de