syzbot


WARNING in kernfs_get
Status: fixed on 2019/12/05 23:59
Reported-by: syzbot+4950f058cfd2f22b7a83@syzkaller.appspotmail.com
Fix commit: e1666bcb driver core: Fix use-after-free and double free on glue directory
First crash: 396d, last: 256d

Fix bisection: fixed by (bisect log):

commit e1666bcbae0c5edb6d7a752b31a8f28c59b54546
Author: Muchun Song <smuchun@gmail.com>
Date: Sat Jul 27 03:21:22 2019 +0000

  driver core: Fix use-after-free and double free on glue directory

similar bugs (3):
Kernel Title Repro Bisected Count Last Reported Patched Status
linux-4.14 WARNING in kernfs_get C fix 17 280d 400d 1/1 fixed on 2019/12/07 19:24
upstream WARNING in kernfs_get C cause 316 295d 623d 14/17 fixed on 2019/11/20 22:01
android-414 WARNING in kernfs_get syz 69 259d 411d 0/1 public: reported syz repro on 2019/04/10 15:44

Sample crash report:

Crashes (14):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci2-linux-4-19 2019/09/12 16:08 linux-4.19.y ee809c7e 0b7672ee .config log report syz C gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, tj@kernel.org
ci2-linux-4-19 2019/08/01 20:46 linux-4.19.y 9a9de33a 835dffe7 .config log report syz C gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, tj@kernel.org
ci2-linux-4-19 2019/07/16 22:04 linux-4.19.y 3bd837bf 4ec4ea48 .config log report syz C gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, tj@kernel.org
ci2-linux-4-19 2019/06/30 05:58 linux-4.19.y aec3002d 7509bf36 .config log report syz C gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, tj@kernel.org
ci2-linux-4-19 2019/06/07 18:04 linux-4.19.y e109a984 cf9c3a50 .config log report syz C gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, tj@kernel.org
ci2-linux-4-19 2019/04/25 23:08 linux-4.19.y c98875d9 f46aabc8 .config log report syz C gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, tj@kernel.org
ci2-linux-4-19 2019/08/31 20:55 linux-4.19.y 97ab07e1 bad3cce2 .config log report gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, tj@kernel.org
ci2-linux-4-19 2019/08/15 18:55 linux-4.19.y 893af1c7 faeffb00 .config log report gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, tj@kernel.org
ci2-linux-4-19 2019/07/23 22:10 linux-4.19.y be9b6782 de453f34 .config log report gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, tj@kernel.org
ci2-linux-4-19 2019/07/21 01:08 linux-4.19.y 3bd837bf 1656845f .config log report gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, tj@kernel.org
ci2-linux-4-19 2019/06/27 15:50 linux-4.19.y aec3002d 7509bf36 .config log report gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, tj@kernel.org
ci2-linux-4-19 2019/06/27 03:34 linux-4.19.y aec3002d 7509bf36 .config log report gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, tj@kernel.org
ci2-linux-4-19 2019/06/12 15:17 linux-4.19.y 768292d0 794a1ad7 .config log report gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, tj@kernel.org
ci2-linux-4-19 2019/06/04 19:22 linux-4.19.y e109a984 e41a20c5 .config log report gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, tj@kernel.org