syzbot


WARNING: refcount bug in __sk_destruct
Status: upstream: reported C repro on 2020/03/02 01:33
Reported-by: syzbot+dd803bc0e8adf0003261@syzkaller.appspotmail.com
First crash: 144d, last: 47d

Cause bisection: introduced by (bisect log):

commit 14215108a1fd7e002c0a1f9faf8fbaf41fdda50d
Author: Cong Wang <xiyou.wangcong@gmail.com>
Date: Thu Feb 21 05:37:42 2019 +0000

  net_sched: initialize net pointer inside tcf_exts_init()

Crash: WARNING in ex_handler_refcount (log)
Repro: C syz .config

Fix bisection: failed (bisect log)

Sample crash report:

Crashes (3):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-qemu-upstream 2020/03/17 15:39 upstream fb33c651 749688d2 .config log report syz C ap420073@gmail.com, davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, lirongqing@baidu.com, netdev@vger.kernel.org, nikolay@cumulusnetworks.com, penguin-kernel@I-love.SAKURA.ne.jp, tglx@linutronix.de
ci-upstream-net-kasan-gce 2020/01/23 18:19 net-next fd786fb1 3334d684 .config log report syz C andriin@fb.com, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, edumazet@google.com, hawk@kernel.org, jasowang@redhat.com, john.fastabend@gmail.com, kafai@fb.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, songliubraving@fb.com, yhs@fb.com
ci-upstream-net-this-kasan-gce 2020/01/10 13:42 net e267371d 4de4e9f0 .config log report davem@davemloft.net, linux-can@vger.kernel.org, linux-kernel@vger.kernel.org, mkl@pengutronix.de, netdev@vger.kernel.org, socketcan@hartkopp.net