syzbot


INFO: rcu detected stall in addrconf_rs_timer (3)
Status: upstream: reported C repro on 2019/12/24 02:35
Reported-by: syzbot+c22c6b9dce8e773ddcb6@syzkaller.appspotmail.com
Fix commit: d9e15a27 pkt_sched: fq: do not accept silly TCA_FQ_QUANTUM
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-kcsan-gce ci2-upstream-usb], missing on: [ci-upstream-kmsan-gce]
First crash: 104d, last: 59d

Cause bisection: the bug happens on the oldest tested release
Crash: INFO: rcu detected stall in corrupted (log)
Repro: C syz .config

Fix bisection: fixed by (bisect log):

commit d9e15a2733067c9328fb56d98fe8e574fa19ec31
Author: Eric Dumazet <edumazet@google.com>
Date: Mon Jan 6 14:10:39 2020 +0000

  pkt_sched: fq: do not accept silly TCA_FQ_QUANTUM

similar bugs (4):
Kernel Title Repro Bisected Count Last Reported Patched Status
upstream INFO: rcu detected stall in addrconf_rs_timer (2) 362 137d 159d 14/16 fixed on 2019/10/21 12:31
linux-4.14 INFO: rcu detected stall in addrconf_rs_timer C 122 21h35m 163d 0/1 upstream: reported C repro on 2019/09/06 14:33
upstream INFO: rcu detected stall in addrconf_rs_timer 38 423d 519d 0/16 closed as dup on 2019/01/02 16:33
linux-4.19 INFO: rcu detected stall in addrconf_rs_timer 45 151d 163d 0/1 auto-closed as invalid on 2019/12/17 18:46

Sample crash report:

Crashes (81):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-net-kasan-gce 2019/12/20 02:24 net-next a1ec57c0 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-qemu-upstream 2019/11/29 12:44 upstream 81b6b964 d29b9e84 .config log report davem@davemloft.net, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, yoshfuji@linux-ipv6.org
ci-qemu-upstream 2019/11/29 12:06 upstream 81b6b964 d29b9e84 .config log report andriin@fb.com, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, hawk@kernel.org, jakub.kicinski@netronome.com, john.fastabend@gmail.com, kafai@fb.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, songliubraving@fb.com, yhs@fb.com
ci-qemu-upstream 2019/11/29 11:03 upstream 81b6b964 4f7e1d0f .config log report davem@davemloft.net, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, yoshfuji@linux-ipv6.org
ci-qemu-upstream 2019/11/29 11:03 upstream 81b6b964 4f7e1d0f .config log report davem@davemloft.net, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, yoshfuji@linux-ipv6.org
ci-qemu-upstream 2019/11/29 11:03 upstream 81b6b964 4f7e1d0f .config log report davem@davemloft.net, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, yoshfuji@linux-ipv6.org
ci-qemu-upstream 2019/11/29 11:02 upstream 81b6b964 4f7e1d0f .config log report bridge@lists.linux-foundation.org, coreteam@netfilter.org, davem@davemloft.net, fw@strlen.de, kadlec@netfilter.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, netfilter-devel@vger.kernel.org, nikolay@cumulusnetworks.com, pablo@netfilter.org, roopa@cumulusnetworks.com
ci-qemu-upstream 2019/11/29 11:01 upstream 81b6b964 4f7e1d0f .config log report bp@alien8.de, gregkh@linuxfoundation.org, hpa@zytor.com, jannh@google.com, jpoimboe@redhat.com, linux-kernel@vger.kernel.org, mhiramat@kernel.org, mingo@redhat.com, peterz@infradead.org, tglx@linutronix.de, x86@kernel.org
ci-qemu-upstream 2019/11/29 10:59 upstream 81b6b964 4f7e1d0f .config log report bp@alien8.de, hpa@zytor.com, jannh@google.com, jpoimboe@redhat.com, linux-kernel@vger.kernel.org, mhiramat@kernel.org, mingo@redhat.com, peterz@infradead.org, tglx@linutronix.de, x86@kernel.org
ci-qemu-upstream 2019/11/29 10:59 upstream 81b6b964 4f7e1d0f .config log report colin.king@canonical.com, davem@davemloft.net, dsahern@gmail.com, edumazet@google.com, johannes.berg@intel.com, khlebnikov@yandex-team.ru, linux-kernel@vger.kernel.org, mcroce@redhat.com, netdev@vger.kernel.org, roopa@cumulusnetworks.com
ci-qemu-upstream 2019/11/29 10:57 upstream 81b6b964 4f7e1d0f .config log report andriin@fb.com, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, hawk@kernel.org, jakub.kicinski@netronome.com, john.fastabend@gmail.com, kafai@fb.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, songliubraving@fb.com, yhs@fb.com
ci-qemu-upstream 2019/11/29 10:57 upstream 81b6b964 4f7e1d0f .config log report coreteam@netfilter.org, davem@davemloft.net, fw@strlen.de, kadlec@netfilter.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, netfilter-devel@vger.kernel.org, pablo@netfilter.org
ci-qemu-upstream 2019/11/29 10:53 upstream 81b6b964 4f7e1d0f .config log report bp@alien8.de, gregkh@linuxfoundation.org, hpa@zytor.com, jannh@google.com, jpoimboe@redhat.com, linux-kernel@vger.kernel.org, mingo@redhat.com, peterz@infradead.org, tglx@linutronix.de, x86@kernel.org
ci-qemu-upstream 2019/11/29 10:49 upstream 81b6b964 4f7e1d0f .config log report davem@davemloft.net, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, yoshfuji@linux-ipv6.org
ci-qemu-upstream 2019/11/29 10:49 upstream 81b6b964 4f7e1d0f .config log report davem@davemloft.net, herbert@gondor.apana.org.au, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, steffen.klassert@secunet.com
ci-qemu-upstream 2019/11/29 10:48 upstream 81b6b964 4f7e1d0f .config log report davem@davemloft.net, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, yoshfuji@linux-ipv6.org
ci-qemu-upstream 2019/11/29 10:47 upstream 81b6b964 4f7e1d0f .config log report andriin@fb.com, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, kafai@fb.com, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, songliubraving@fb.com, yhs@fb.com, yoshfuji@linux-ipv6.org
ci-qemu-upstream 2019/11/29 10:44 upstream 81b6b964 4f7e1d0f .config log report colin.king@canonical.com, davem@davemloft.net, dsahern@gmail.com, edumazet@google.com, johannes.berg@intel.com, khlebnikov@yandex-team.ru, linux-kernel@vger.kernel.org, mcroce@redhat.com, netdev@vger.kernel.org, roopa@cumulusnetworks.com
ci-qemu-upstream 2019/11/29 10:43 upstream 81b6b964 4f7e1d0f .config log report davem@davemloft.net, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, yoshfuji@linux-ipv6.org
ci-qemu-upstream 2019/11/29 10:41 upstream 81b6b964 4f7e1d0f .config log report Jason@zx2c4.com, davem@davemloft.net, gregkh@linuxfoundation.org, jwi@linux.ibm.com, linux-kernel@vger.kernel.org, maheshb@google.com, netdev@vger.kernel.org, posk@google.com, tglx@linutronix.de, weiwan@google.com
ci-qemu-upstream 2019/11/29 10:40 upstream 81b6b964 4f7e1d0f .config log report davem@davemloft.net, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, yoshfuji@linux-ipv6.org
ci-qemu-upstream 2019/11/29 10:39 upstream 81b6b964 4f7e1d0f .config log report colin.king@canonical.com, davem@davemloft.net, dsahern@gmail.com, edumazet@google.com, johannes.berg@intel.com, khlebnikov@yandex-team.ru, linux-kernel@vger.kernel.org, mcroce@redhat.com, netdev@vger.kernel.org, roopa@cumulusnetworks.com
ci-qemu-upstream 2019/11/29 10:38 upstream 81b6b964 4f7e1d0f .config log report coreteam@netfilter.org, davem@davemloft.net, fw@strlen.de, kadlec@netfilter.org, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, netfilter-devel@vger.kernel.org, pablo@netfilter.org, yoshfuji@linux-ipv6.org
ci-qemu-upstream 2019/11/29 10:33 upstream 81b6b964 4f7e1d0f .config log report andriin@fb.com, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, jeyu@kernel.org, kafai@fb.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, songliubraving@fb.com, yhs@fb.com
ci-qemu-upstream 2019/11/29 10:33 upstream 81b6b964 4f7e1d0f .config log report bvanassche@acm.org, joe.lawrence@redhat.com, jpoimboe@redhat.com, jslaby@suse.cz, linux-kernel@vger.kernel.org, mbenes@suse.cz, mingo@kernel.org, peterz@infradead.org, tglx@linutronix.de
ci-qemu-upstream 2019/11/29 10:32 upstream 81b6b964 4f7e1d0f .config log report davem@davemloft.net, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, yoshfuji@linux-ipv6.org
ci-qemu-upstream 2019/11/29 10:30 upstream 81b6b964 4f7e1d0f .config log report andriin@fb.com, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, kafai@fb.com, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, songliubraving@fb.com, yhs@fb.com, yoshfuji@linux-ipv6.org
ci-qemu-upstream 2019/11/29 10:27 upstream 81b6b964 4f7e1d0f .config log report davem@davemloft.net, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, yoshfuji@linux-ipv6.org
ci-qemu-upstream 2019/11/29 10:27 upstream 81b6b964 4f7e1d0f .config log report andriin@fb.com, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, kafai@fb.com, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, songliubraving@fb.com, yhs@fb.com, yoshfuji@linux-ipv6.org
ci-qemu-upstream 2019/11/29 10:24 upstream 81b6b964 4f7e1d0f .config log report bp@alien8.de, gregkh@linuxfoundation.org, hpa@zytor.com, jannh@google.com, jpoimboe@redhat.com, linux-kernel@vger.kernel.org, mingo@redhat.com, peterz@infradead.org, tglx@linutronix.de, x86@kernel.org
ci-qemu-upstream 2019/11/29 10:23 upstream 81b6b964 4f7e1d0f .config log report davem@davemloft.net, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, yoshfuji@linux-ipv6.org
ci-qemu-upstream 2019/11/29 10:22 upstream 81b6b964 4f7e1d0f .config log report davem@davemloft.net, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, yoshfuji@linux-ipv6.org
ci-qemu-upstream 2019/11/29 10:20 upstream 81b6b964 4f7e1d0f .config log report coreteam@netfilter.org, davem@davemloft.net, fw@strlen.de, kadlec@netfilter.org, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, netfilter-devel@vger.kernel.org, pablo@netfilter.org, yoshfuji@linux-ipv6.org
ci-qemu-upstream 2019/11/29 10:19 upstream 81b6b964 4f7e1d0f .config log report coreteam@netfilter.org, davem@davemloft.net, fw@strlen.de, kadlec@netfilter.org, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, netfilter-devel@vger.kernel.org, pablo@netfilter.org, yoshfuji@linux-ipv6.org
ci-qemu-upstream 2019/11/29 10:19 upstream 81b6b964 4f7e1d0f .config log report allison@lohutok.net, andriin@fb.com, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, kafai@fb.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, rfontana@redhat.com, santosh@fossix.org, songliubraving@fb.com, tglx@linutronix.de, yhs@fb.com
ci-qemu-upstream 2019/11/29 10:18 upstream 81b6b964 4f7e1d0f .config log report andriin@fb.com, anton@enomsg.org, ast@kernel.org, bpf@vger.kernel.org, ccross@android.com, daniel@iogearbox.net, eparis@parisplace.org, kafai@fb.com, keescook@chromium.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, paul@paul-moore.com, sds@tycho.nsa.gov, selinux@vger.kernel.org, songliubraving@fb.com, tony.luck@intel.com, yhs@fb.com
ci-qemu-upstream 2019/11/29 10:14 upstream 81b6b964 4f7e1d0f .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-qemu-upstream 2019/11/29 10:10 upstream 81b6b964 4f7e1d0f .config log report bp@alien8.de, gregkh@linuxfoundation.org, hpa@zytor.com, jannh@google.com, jpoimboe@redhat.com, linux-kernel@vger.kernel.org, mingo@redhat.com, peterz@infradead.org, tglx@linutronix.de, x86@kernel.org
ci-qemu-upstream 2019/11/29 10:10 upstream 81b6b964 4f7e1d0f .config log report andriin@fb.com, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, hawk@kernel.org, jakub.kicinski@netronome.com, john.fastabend@gmail.com, kafai@fb.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, songliubraving@fb.com, yhs@fb.com
ci-qemu-upstream 2019/11/29 10:06 upstream 81b6b964 4f7e1d0f .config log report andriin@fb.com, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, jmorris@namei.org, kafai@fb.com, linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org, netdev@vger.kernel.org, serge@hallyn.com, songliubraving@fb.com, yhs@fb.com
ci-qemu-upstream 2019/11/29 10:06 upstream 81b6b964 4f7e1d0f .config log report Jason@zx2c4.com, davem@davemloft.net, jwi@linux.ibm.com, linux-kernel@vger.kernel.org, maheshb@google.com, netdev@vger.kernel.org, posk@google.com, tglx@linutronix.de, weiwan@google.com
ci-upstream-kasan-gce-smack-root 2019/11/13 12:40 upstream 0e3f1ad8 048f2d49 .config log report bvanassche@acm.org, jpoimboe@redhat.com, jslaby@suse.cz, kamalesh@linux.vnet.ibm.com, linux-kernel@vger.kernel.org, mbenes@suse.cz, peterz@infradead.org, tglx@linutronix.de
ci-upstream-kasan-gce-smack-root 2019/11/13 05:28 upstream 100d46bd 048f2d49 .config log report bp@alien8.de, gregkh@linuxfoundation.org, hpa@zytor.com, jannh@google.com, jpoimboe@redhat.com, linux-kernel@vger.kernel.org, mingo@redhat.com, peterz@infradead.org, tglx@linutronix.de, x86@kernel.org
ci-upstream-kasan-gce-smack-root 2019/11/05 08:09 upstream a99d8080 76630fc9 .config log report colin.king@canonical.com, davem@davemloft.net, dsahern@gmail.com, johannes.berg@intel.com, khlebnikov@yandex-team.ru, linux-kernel@vger.kernel.org, mcroce@redhat.com, netdev@vger.kernel.org, roopa@cumulusnetworks.com
ci-qemu-upstream-386 2019/12/04 10:14 upstream 63de3747 0ecb9746 .config log report andriin@fb.com, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, hawk@kernel.org, jakub.kicinski@netronome.com, john.fastabend@gmail.com, kafai@fb.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, songliubraving@fb.com, yhs@fb.com