syzbot


INFO: rcu detected stall in corrupted (4)
Status: upstream: reported C repro on 2020/09/04 18:49
Reported-by: syzbot+aa7d098bd6fa788fae8e@syzkaller.appspotmail.com
First crash: 140d, 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 (8):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-414 INFO: rcu detected stall in corrupted C 3 576d 649d 0/1 public: reported C repro on 2019/04/10 16:04
android-49 INFO: rcu detected stall in corrupted C 27 461d 646d 0/3 public: reported C repro on 2019/04/14 00:00
upstream INFO: rcu detected stall in corrupted (3) C done 1 665d 661d 0/17 closed as invalid on 2019/03/30 00:13
linux-4.14 INFO: rcu detected stall in corrupted (2) C error 4 219d 381d 0/1 upstream: reported C repro on 2020/01/04 08:54
upstream INFO: rcu detected stall in corrupted syz 1 974d 973d 9/17 fixed on 2018/07/09 18:05
linux-4.14 INFO: rcu detected stall in corrupted C done 3 494d 516d 1/1 fixed on 2019/12/05 23:59
linux-4.19 INFO: rcu detected stall in corrupted syz error 1 341d 341d 0/1 upstream: reported syz repro on 2020/02/13 05:06
upstream INFO: rcu detected stall in corrupted (2) syz 1 905d 905d 0/17 closed as invalid on 2018/07/29 11:55

Sample crash report:

Fix bisection attempts:
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info
ci-upstream-net-kasan-gce 2020/12/07 14:50 net-next af3f4a85 d5a3ae1f .config log report syz C
ci-upstream-net-kasan-gce 2020/11/07 05:53 net-next ae0d0bb2 d5a3ae1f .config log report syz C
ci-upstream-net-kasan-gce 2020/10/07 18:23 net-next 9faebeb2 d5a3ae1f .config log syz C
Crashes (2):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Maintainers
ci-upstream-net-kasan-gce 2020/08/31 18:45 net-next 0f091e43 d5a3ae1f .config log report syz C
ci-upstream-kasan-gce-root 2021/01/02 05:37 upstream eda809ae 79264ae3 .config log report syz bristot@redhat.com, bsegall@google.com, dietmar.eggemann@arm.com, juri.lelli@redhat.com, linux-kernel@vger.kernel.org, mgorman@suse.de, mingo@redhat.com, peterz@infradead.org, rostedt@goodmis.org, vincent.guittot@linaro.org