syzbot


INFO: rcu detected stall in inet_sendmsg (2)
Status: internal: reported on 2020/04/23 08:06
Reported-by: syzbot+@syzkaller.appspotmail.com
Fix commit: df4953e4 sch_sfq: validate silly quantum values
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 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-usb], missing on: [ci-upstream-kmsan-gce ci-upstream-kmsan-gce-386 ci2-upstream-kcsan-gce]
First crash: 40d, last: 27d
similar bugs (5):
Kernel Title Repro Bisected Count Last Reported Patched Status
upstream INFO: rcu detected stall in inet_sendmsg 35 218d 522d 0/17 auto-closed as invalid on 2020/01/26 18:56
linux-4.14 INFO: rcu detected stall in inet_sendmsg (2) 1 19d 19d 0/1 upstream: reported on 2020/05/14 11:53
linux-4.14 INFO: rcu detected stall in inet_sendmsg 3 268d 375d 0/1 auto-closed as invalid on 2020/01/06 14:34
linux-4.19 INFO: rcu detected stall in inet_sendmsg 3 268d 270d 0/1 auto-closed as invalid on 2020/01/06 19:02
linux-4.19 INFO: rcu detected stall in inet_sendmsg (2) 2 36d 36d 0/1 upstream: reported on 2020/04/27 04:05

Sample crash report:

Crashes (5):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-kasan-gce-selinux-root 2020/05/06 15:11 upstream dc56c5ac 4618eb2d .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-kasan-gce-root 2020/04/23 06:32 upstream c578ddb3 2e44d63e .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-kasan-gce-386 2020/05/05 07:06 upstream 9851a0de 9941337c .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-net-kasan-gce 2020/05/05 13:46 net-next 354d8614 4b76dd25 .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-net-kasan-gce 2020/04/24 12:03 net-next b86a0373 2e44d63e .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com