syzbot


KCSAN: data-race in __rcu_read_unlock / rcu_report_exp_cpu_mult
Status: fixed on 2020/02/18 14:31
Reported-by: syzbot+8455e6d785a89e341ce1@syzkaller.appspotmail.com
Fix commit: c51f83c3 rcu: Use READ_ONCE() for ->expmask in rcu_read_unlock_special()
First crash: 111d, last: 19d

Sample crash report:

Crashes (21):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci2-upstream-kcsan-gce 2020/02/03 00:21 https://github.com/google/ktsan.git kcsan 245a4300 93e5e335 .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
ci2-upstream-kcsan-gce 2020/01/20 06:47 https://github.com/google/ktsan.git kcsan 245a4300 0342f8c7 .config log report akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org
ci2-upstream-kcsan-gce 2020/01/18 01:15 https://github.com/google/ktsan.git kcsan 245a4300 3de7aabb .config log report akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org
ci2-upstream-kcsan-gce 2020/01/12 20:30 https://github.com/google/ktsan.git kcsan 245a4300 31290a45 .config log report akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org
ci2-upstream-kcsan-gce 2020/01/09 20:35 https://github.com/google/ktsan.git kcsan 245a4300 4de4e9f0 .config log report akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org
ci2-upstream-kcsan-gce 2020/01/06 06:44 https://github.com/google/ktsan.git kcsan 245a4300 438e1227 .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
ci2-upstream-kcsan-gce 2020/01/05 14:26 https://github.com/google/ktsan.git kcsan 245a4300 d646e21f .config log report gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce 2020/01/05 11:38 https://github.com/google/ktsan.git kcsan 245a4300 68256974 .config log report akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org
ci2-upstream-kcsan-gce 2020/01/03 18:31 https://github.com/google/ktsan.git kcsan 245a4300 9dcc1191 .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
ci2-upstream-kcsan-gce 2019/12/31 04:41 https://github.com/google/ktsan.git kcsan 245a4300 7f117e28 .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
ci2-upstream-kcsan-gce 2019/12/29 09:01 https://github.com/google/ktsan.git kcsan 245a4300 af6b8ef8 .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
ci2-upstream-kcsan-gce 2019/12/24 12:31 https://github.com/google/ktsan.git kcsan 245a4300 be5c2c81 .config log report akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org
ci2-upstream-kcsan-gce 2019/12/15 20:42 https://github.com/google/ktsan.git kcsan 245a4300 eef6e580 .config log report axboe@kernel.dk, justin@coraid.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-upstream-kcsan-gce 2019/12/10 15:15 https://github.com/google/ktsan.git kcsan ef798c30 4b83c8fb .config log report akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org
ci2-upstream-kcsan-gce 2019/12/03 00:38 https://github.com/google/ktsan.git kcsan ef798c30 ab342da3 .config log report axboe@kernel.dk, justin@coraid.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-upstream-kcsan-gce 2019/12/01 04:17 https://github.com/google/ktsan.git kcsan ef798c30 a76bf83f .config log report axboe@kernel.dk, justin@coraid.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org
ci2-upstream-kcsan-gce 2019/11/18 19:16 https://github.com/google/ktsan.git kcsan 5863cc79 d5696d51 .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
ci2-upstream-kcsan-gce 2019/11/15 20:59 https://github.com/google/ktsan.git kcsan 5863cc79 79248ee8 .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
ci2-upstream-kcsan-gce 2019/11/13 00:38 https://github.com/google/ktsan.git kcsan 7f2955e0 048f2d49 .config log report davem@davemloft.net, herbert@gondor.apana.org.au, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, steffen.klassert@secunet.com
ci2-upstream-kcsan-gce 2019/11/06 20:15 https://github.com/google/ktsan.git kcsan 94c00660 da505f84 .config log report cgroups@vger.kernel.org, hannes@cmpxchg.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, mhocko@kernel.org, vdavydov.dev@gmail.com
ci2-upstream-kcsan-gce 2019/11/02 23:17 https://github.com/google/ktsan.git kcsan 05f22368 d603afc9 .config log report davem@davemloft.net, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, yoshfuji@linux-ipv6.org