syzbot


WARNING: suspicious RCU usage in netem_enqueue
Status: fixed on 2019/12/13 05:27
Reported-by: syzbot+9ea180ba12a5c1098b92@syzkaller.appspotmail.com
Fix commit: 6f492e80 net_sched: add max len check for TCA_KIND
First crash: 240d, last: 217d

Fix bisection: fixed by (bisect log):

commit 6f492e8010338dc2584a711b0cae388fd36120a5
Author: Cong Wang <xiyou.wangcong@gmail.com>
Date: Wed Sep 18 23:24:12 2019 +0000

  net_sched: add max len check for TCA_KIND

similar bugs (2):
Kernel Title Repro Bisected Count Last Reported Patched Status
upstream WARNING: suspicious RCU usage in netem_enqueue C cause 16 240d 254d 14/17 fixed on 2019/10/15 23:40
linux-4.19 WARNING: suspicious RCU usage in netem_enqueue C fix 2 238d 243d 1/1 fixed on 2019/12/10 20:49

Sample crash report:

Crashes (3):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci2-linux-4-14 2019/10/01 21:32 linux-4.14.y f6e27dbb b7a87a83 .config log report syz C davem@davemloft.net, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, yoshfuji@linux-ipv6.org
ci2-linux-4-14 2019/09/27 07:41 linux-4.14.y f6e27dbb 2f1548bc .config log report syz C davem@davemloft.net, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, yoshfuji@linux-ipv6.org
ci2-linux-4-14 2019/10/20 13:38 linux-4.14.y b98aebd2 8c88c9c1 .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk