syzbot


INFO: rcu detected stall in sock_close (3)
Status: upstream: reported C repro on 2020/07/08 22:42
Reported-by: syzbot+4168fa4c45be33afa73c@syzkaller.appspotmail.com
First crash: 113d, last: 11d

Cause bisection: introduced by (bisect log):

commit 5e9eeccc58f3e6bcc99b929670665d2ce047e9c9
Author: Tuong Lien <tuong.t.lien@dektech.com.au>
Date: Wed Jun 3 05:06:01 2020 +0000

  tipc: fix NULL pointer dereference in streaming

Crash: INFO: rcu detected stall in tipc_release (log)
Repro: C syz .config
similar bugs (2):
Kernel Title Repro Bisected Count Last Reported Patched Status
upstream INFO: rcu detected stall in sock_close 6 321d 322d 0/17 closed as invalid on 2019/12/04 14:04
upstream INFO: rcu detected stall in sock_close (2) 1 286d 286d 0/17 closed as invalid on 2020/01/09 08:13

Sample crash report:

Fix bisection attempts:
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info
ci-upstream-kasan-gce-smack-root 2020/10/09 14:58 upstream 583090b1 51095195 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/09/07 18:57 upstream f4d51dff 51095195 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/08/08 16:27 upstream 449dc8c9 51095195 .config log report syz C
Crashes (4):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Maintainers
ci-upstream-kasan-gce-smack-root 2020/07/08 14:30 upstream 7cc2a8ea 51095195 .config log report syz C fweisbec@gmail.com, linux-kernel@vger.kernel.org, mingo@kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-smack-root 2020/07/09 10:31 upstream 0bddd227 bc238812 .config log report fweisbec@gmail.com, linux-kernel@vger.kernel.org, mingo@kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-smack-root 2020/07/08 11:36 upstream 7cc2a8ea 51095195 .config log report fweisbec@gmail.com, linux-kernel@vger.kernel.org, mingo@kernel.org, tglx@linutronix.de
ci-upstream-kasan-gce-smack-root 2020/06/29 19:26 upstream 4e99b321 a2cdad9d .config log report fweisbec@gmail.com, linux-kernel@vger.kernel.org, mingo@kernel.org, tglx@linutronix.de