syzbot


KASAN: use-after-free Read in l2tp_session_create
Status: upstream: reported syz repro on 2019/08/13 00:46
Reported-by: syzbot+4550480206ba5318178f@syzkaller.appspotmail.com
First crash: 286d, last: 8d22h
similar bugs (3):
Kernel Title Repro Bisected Count Last Reported Patched Status
upstream KASAN: use-after-free Read in l2tp_session_create 119 792d 859d 9/17 fixed on 2018/07/20 18:40
android-44 KASAN: use-after-free Read in l2tp_session_create C 10 634d 832d 0/2 closed as invalid on 2019/03/26 00:01
android-49 KASAN: use-after-free Read in l2tp_session_create C 2 634d 406d 0/3 public: reported C repro on 2019/04/14 08:51

Sample crash report:

Fix bisection attempts:
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro
ci2-linux-4-14 2020/05/16 03:58 linux-4.14.y ab9dfda2 b5268b89 .config log report syz
ci2-linux-4-14 2020/04/16 03:29 linux-4.14.y c10b57a5 b5268b89 .config log report syz
ci2-linux-4-14 2020/03/17 03:04 linux-4.14.y 12cd844a b5268b89 .config log report syz
ci2-linux-4-14 2020/02/15 23:51 linux-4.14.y 98db2bf2 b5268b89 .config log report syz
ci2-linux-4-14 2020/01/16 23:26 linux-4.14.y c04fc6fa b5268b89 .config log report syz
ci2-linux-4-14 2019/12/17 23:02 linux-4.14.y bfb9e5c0 b5268b89 .config log report syz
Crashes (5):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci2-linux-4-14 2019/10/15 16:30 linux-4.14.y e132c8d7 b5268b89 .config log report syz davem@davemloft.net, gnault@redhat.com, gregkh@linuxfoundation.org, jchapman@katalix.com, jian.w.wen@oracle.com, linux-kernel@vger.kernel.org, lorenzo.bianconi@redhat.com, netdev@vger.kernel.org
ci2-linux-4-14 2019/10/10 07:36 linux-4.14.y 42327896 c4b9981b .config log report davem@davemloft.net, gnault@redhat.com, gregkh@linuxfoundation.org, jchapman@katalix.com, jian.w.wen@oracle.com, linux-kernel@vger.kernel.org, lorenzo.bianconi@redhat.com, netdev@vger.kernel.org
ci2-linux-4-14 2019/09/25 10:37 linux-4.14.y f6e27dbb e38a6630 .config log report davem@davemloft.net, gnault@redhat.com, gregkh@linuxfoundation.org, jchapman@katalix.com, jian.w.wen@oracle.com, linux-kernel@vger.kernel.org, lorenzo.bianconi@redhat.com, netdev@vger.kernel.org, sashal@kernel.org
ci2-linux-4-14 2019/09/04 20:02 linux-4.14.y 01fd1694 d994512d .config log report davem@davemloft.net, gnault@redhat.com, gregkh@linuxfoundation.org, jchapman@katalix.com, jian.w.wen@oracle.com, linux-kernel@vger.kernel.org, lorenzo.bianconi@redhat.com, netdev@vger.kernel.org
ci2-linux-4-14 2019/08/12 23:45 linux-4.14.y 3ffe1e79 8620c2c2 .config log report davem@davemloft.net, gnault@redhat.com, gregkh@linuxfoundation.org, jchapman@katalix.com, jian.w.wen@oracle.com, linux-kernel@vger.kernel.org, lorenzo.bianconi@redhat.com, netdev@vger.kernel.org, sashal@kernel.org, weiwan@google.com