syzbot


KASAN: slab-out-of-bounds Read in macvlan_broadcast
Status: fixed on 2020/02/10 15:38
Reported-by: syzbot+575d3bd83510e5dc4102@syzkaller.appspotmail.com
Fix commit: 5f3274c5 macvlan: do not assume mac_header is set in macvlan_broadcast()
First crash: 95d, last: 90d

Fix bisection: fixed by (bisect log):

commit 5f3274c53ae7049755b29ec0c351f145cb68270c
Author: Eric Dumazet <edumazet@google.com>
Date: Mon Jan 6 20:30:48 2020 +0000

  macvlan: do not assume mac_header is set in macvlan_broadcast()

similar bugs (2):
Kernel Title Repro Bisected Count Last Reported Patched Status
upstream KASAN: slab-out-of-bounds Read in macvlan_broadcast C cause 10 92d 95d 16/17 fixed on 2020/02/18 14:31
linux-4.14 KASAN: slab-out-of-bounds Read in macvlan_broadcast C fix 6 90d 95d 1/1 fixed on 2020/02/10 15:38

Sample crash report:

Crashes (10):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci2-linux-4-19 2020/01/06 18:33 linux-4.19.y 3d40d711 438e1227 .config log report syz C davem@davemloft.net, dong.menglong@zte.com.cn, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org
ci2-linux-4-19 2020/01/06 15:54 linux-4.19.y 3d40d711 438e1227 .config log report syz C davem@davemloft.net, dong.menglong@zte.com.cn, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org
ci2-linux-4-19 2020/01/06 14:43 linux-4.19.y 3d40d711 438e1227 .config log report syz C davem@davemloft.net, dong.menglong@zte.com.cn, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org
ci2-linux-4-19 2020/01/06 14:20 linux-4.19.y 3d40d711 438e1227 .config log report syz C davem@davemloft.net, dong.menglong@zte.com.cn, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org
ci2-linux-4-19 2020/01/07 04:22 linux-4.19.y 3d40d711 53430d97 .config log report syz davem@davemloft.net, dong.menglong@zte.com.cn, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org
ci2-linux-4-19 2020/01/11 09:10 linux-4.19.y cb1f9a16 4c04afaa .config log report davem@davemloft.net, dong.menglong@zte.com.cn, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org
ci2-linux-4-19 2020/01/10 16:10 linux-4.19.y cb1f9a16 532ec44e .config log report davem@davemloft.net, dong.menglong@zte.com.cn, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org
ci2-linux-4-19 2020/01/10 07:15 linux-4.19.y cb1f9a16 4de4e9f0 .config log report davem@davemloft.net, dong.menglong@zte.com.cn, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org
ci2-linux-4-19 2020/01/09 05:56 linux-4.19.y 3d40d711 ddc3e859 .config log report davem@davemloft.net, dong.menglong@zte.com.cn, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org
ci2-linux-4-19 2020/01/06 13:53 linux-4.19.y 3d40d711 438e1227 .config log report davem@davemloft.net, dong.menglong@zte.com.cn, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org