syzbot


INFO: rcu detected stall in do_signal (4)
Status: upstream: reported C repro on 2019/12/23 09:45
Reported-by: syzbot+7e600afa7f6059f9a30e@syzkaller.appspotmail.com
First crash: 309d, last: 75d

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

Fix bisection: failed (bisect log)
similar bugs (7):
Kernel Title Repro Bisected Count Last Reported Patched Status
upstream INFO: rcu detected stall in do_signal (3) 2 321d 321d 0/17 closed as invalid on 2019/12/04 14:04
linux-4.19 INFO: rcu detected stall in do_signal (2) 1 281d 281d 0/1 auto-closed as invalid on 2020/05/11 22:29
upstream INFO: rcu detected stall in do_signal 2 720d 739d 0/17 auto-closed as invalid on 2019/04/28 15:41
linux-4.19 INFO: rcu detected stall in do_signal 1 543d 542d 0/1 auto-closed as invalid on 2019/10/23 10:40
linux-4.14 INFO: rcu detected stall in do_signal 6 19d 306d 0/1 upstream: reported on 2019/12/18 22:20
linux-4.19 INFO: rcu detected stall in do_signal (3) 3 47d 131d 0/1 upstream: reported on 2020/06/11 06:41
upstream INFO: rcu detected stall in do_signal (2) 3 325d 326d 0/17 closed as invalid on 2019/11/29 14:24

Sample crash report:

Crashes (30):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Maintainers
ci-upstream-kasan-gce-root 2019/12/19 09:30 upstream 2187f215 79b211f7 .config log report syz C christian@brauner.io, ebiederm@xmission.com, linux-kernel@vger.kernel.org, oleg@redhat.com
ci-upstream-linux-next-kasan-gce-root 2019/12/27 13:29 linux-next 7ddd09fc be5c2c81 .config log report syz C bigeasy@linutronix.de, bp@alien8.de, dave.hansen@intel.com, hpa@zytor.com, linux-kernel@vger.kernel.org, mingo@redhat.com, riel@surriel.com, tglx@linutronix.de, x86@kernel.org
ci-upstream-kasan-gce-smack-root 2020/08/05 16:58 upstream 442489c2 b7129355 .config log report fweisbec@gmail.com, linux-kernel@vger.kernel.org, mingo@kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-selinux-root 2020/08/04 13:09 upstream bcf87687 196277c4 .config log report fweisbec@gmail.com, linux-kernel@vger.kernel.org, mingo@kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce 2020/07/19 16:48 upstream f932d58a 9c812472 .config log report fweisbec@gmail.com, linux-kernel@vger.kernel.org, mingo@kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce 2020/07/17 05:46 upstream f8456690 54b3c45e .config log report fweisbec@gmail.com, linux-kernel@vger.kernel.org, mingo@kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-selinux-root 2020/07/16 22:55 upstream f8456690 54b3c45e .config log report linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce 2020/07/06 02:49 upstream 7cc2a8ea 51095195 .config log report linux-kernel@vger.kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-smack-root 2020/06/30 08:21 upstream 4e99b321 a2cdad9d .config log report fweisbec@gmail.com, linux-kernel@vger.kernel.org, mingo@kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-root 2020/06/29 19:40 upstream 4e99b321 a2cdad9d .config log report fweisbec@gmail.com, linux-kernel@vger.kernel.org, mingo@kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-smack-root 2020/06/24 07:58 upstream 7ae77150 54566aff .config log report akpm@linux-foundation.org, cgroups@vger.kernel.org, hannes@cmpxchg.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, mhocko@kernel.org, vdavydov.dev@gmail.com
ci-upstream-kasan-gce-selinux-root 2020/06/16 20:41 upstream 7ae77150 559fbe2d .config log report akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org
ci-upstream-kasan-gce-root 2020/06/02 22:37 upstream f3592877 52fd7b7d .config log report bigeasy@linutronix.de, bp@alien8.de, dave.hansen@linux.intel.com, fenghua.yu@intel.com, hpa@zytor.com, hughd@google.com, linux-kernel@vger.kernel.org, mingo@redhat.com, tglx@linutronix.de, tony.luck@intel.com, x86@kernel.org, yu-cheng.yu@intel.com
ci-upstream-kasan-gce-smack-root 2020/05/11 10:51 upstream 2ef96a5b f8f57555 .config log report bigeasy@linutronix.de, bp@alien8.de, hpa@zytor.com, hughd@google.com, linux-kernel@vger.kernel.org, mingo@redhat.com, tglx@linutronix.de, x86@kernel.org
ci-upstream-kasan-gce-selinux-root 2020/03/07 08:55 upstream fb279f4e fd2a5f28 .config log report christian@brauner.io, ebiederm@xmission.com, guro@fb.com, linux-kernel@vger.kernel.org, oleg@redhat.com
ci-upstream-kasan-gce-root 2020/02/04 00:34 upstream 754beeec 93e5e335 .config log report bigeasy@linutronix.de, bp@alien8.de, dave.hansen@intel.com, hpa@zytor.com, linux-kernel@vger.kernel.org, mingo@redhat.com, riel@surriel.com, tglx@linutronix.de, x86@kernel.org
ci-upstream-kasan-gce-root 2020/01/14 17:28 upstream b3a987b0 32881205 .config log report christian@brauner.io, ebiederm@xmission.com, linux-kernel@vger.kernel.org, oleg@redhat.com
ci-upstream-kasan-gce-root 2020/01/14 11:29 upstream b3a987b0 32881205 .config log report christian@brauner.io, ebiederm@xmission.com, linux-kernel@vger.kernel.org, mingo@kernel.org, oleg@redhat.com, peterz@infradead.org, tglx@linutronix.de
ci-upstream-kasan-gce-smack-root 2020/01/08 10:54 upstream ae608821 6738e0b3 .config log report akpm@linux-foundation.org, cgroups@vger.kernel.org, hannes@cmpxchg.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, mhocko@kernel.org, vdavydov.dev@gmail.com
ci-upstream-kasan-gce-root 2019/12/27 18:54 upstream 46cf053e be5c2c81 .config log report christian@brauner.io, ebiederm@xmission.com, linux-kernel@vger.kernel.org, oleg@redhat.com
ci-upstream-kasan-gce-root 2019/12/27 07:16 upstream 46cf053e be5c2c81 .config log report bigeasy@linutronix.de, bp@alien8.de, dave.hansen@intel.com, hpa@zytor.com, linux-kernel@vger.kernel.org, mingo@redhat.com, riel@surriel.com, tglx@linutronix.de, x86@kernel.org
ci-upstream-kasan-gce-root 2019/12/26 23:09 upstream 46cf053e be5c2c81 .config log report christian@brauner.io, ebiederm@xmission.com, linux-kernel@vger.kernel.org, oleg@redhat.com
ci-upstream-kasan-gce-root 2019/12/26 04:58 upstream 46cf053e be5c2c81 .config log report christian@brauner.io, ebiederm@xmission.com, linux-kernel@vger.kernel.org, oleg@redhat.com
ci-upstream-kasan-gce-root 2019/12/16 04:08 upstream 07c4b9e9 eef6e580 .config log report bigeasy@linutronix.de, bp@alien8.de, dave.hansen@intel.com, hpa@zytor.com, linux-kernel@vger.kernel.org, mingo@redhat.com, riel@surriel.com, tglx@linutronix.de, x86@kernel.org
ci-upstream-kasan-gce-386 2020/07/02 19:22 upstream cd77006e bed10395 .config log report fweisbec@gmail.com, linux-kernel@vger.kernel.org, mingo@kernel.org, tglx@linutronix.de
ci-upstream-linux-next-kasan-gce-root 2020/07/20 04:17 linux-next 4c43049f 9c812472 .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-linux-next-kasan-gce-root 2020/03/07 08:44 linux-next 770fbb32 fd2a5f28 .config log report bigeasy@linutronix.de, bp@alien8.de, dave.hansen@intel.com, hpa@zytor.com, linux-kernel@vger.kernel.org, mingo@redhat.com, riel@surriel.com, tglx@linutronix.de, x86@kernel.org
ci-upstream-linux-next-kasan-gce-root 2020/02/03 14:24 linux-next 2747d5fd 93e5e335 .config log report christian@brauner.io, ebiederm@xmission.com, linux-kernel@vger.kernel.org, oleg@redhat.com
ci-upstream-linux-next-kasan-gce-root 2020/01/07 17:52 linux-next 26467385 1bcd407e .config log report akpm@linux-foundation.org, christian@brauner.io, ebiederm@xmission.com, linux-kernel@vger.kernel.org, oleg@redhat.com
ci-upstream-linux-next-kasan-gce-root 2019/12/25 23:04 linux-next 7ddd09fc be5c2c81 .config log report christian@brauner.io, ebiederm@xmission.com, linux-kernel@vger.kernel.org, oleg@redhat.com