syzbot


general protection fault in skb_unlink
Status: upstream: reported C repro on 2019/11/24 09:40
Reported-by: syzbot+3d9aa25f2dd3b690ee21@syzkaller.appspotmail.com
First crash: 130d, last: 10d

Cause bisection: introduced by (bisect log):

commit 2de50e9674fc4ca3c6174b04477f69eb26b4ee31
Author: Russell Currey <ruscur@russell.cc>
Date: Mon Feb 8 04:08:20 2016 +0000

  powerpc/powernv: Remove support for p5ioc2

Crash: BUG: spinlock lockup suspected in nf_conntrack_lock (log)
Repro: C syz .config
similar bugs (2):
Kernel Title Repro Bisected Count Last Reported Patched Status
upstream general protection fault in skb_unlink C cause+fix 8 116d 672d 0/17 upstream: reported C repro on 2018/05/31 08:16
linux-4.14 general protection fault in skb_unlink C cause 2 10d 130d 0/1 upstream: reported C repro on 2019/11/24 07:04

Sample crash report:

Fix bisection attempts:
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro
ci2-linux-4-19 2020/03/23 14:25 linux-4.19.y 14cfdbd3 598ca6c8 .config log report syz C
ci2-linux-4-19 2020/02/22 13:42 linux-4.19.y 4fccc250 598ca6c8 .config log report syz C
ci2-linux-4-19 2020/01/23 09:30 linux-4.19.y d183c8e2 598ca6c8 .config log report syz C
ci2-linux-4-19 2019/12/24 09:04 linux-4.19.y 672481c2 598ca6c8 .config log report syz C
Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci2-linux-4-19 2019/11/24 08:39 linux-4.19.y c63ee293 598ca6c8 .config log report syz C davem@davemloft.net, jslaby@suse.cz, linux-kernel@vger.kernel.org, mkubecek@suse.cz, netdev@vger.kernel.org, sashal@kernel.org