syzbot


KASAN: use-after-free Read in debugfs_remove
Status: fixed on 2020/12/01 11:25
Reported-by: syzbot+5d709bb1673168a5ada8@syzkaller.appspotmail.com
Fix commit: 8a78b4c0 blktrace: fix debugfs use after free
First crash: 725d, last: 228d

Fix bisection: fixed by (bisect log) :
commit 8a78b4c0d6292d32d76b4268b5a33ae089a5d791
Author: Luis Chamberlain <mcgrof@kernel.org>
Date: Fri Jun 19 20:47:28 2020 +0000

  blktrace: fix debugfs use after free

similar bugs (4):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KASAN: use-after-free Read in debugfs_remove (2) 1 1153d 1151d 6/22 fixed on 2018/05/17 10:02
upstream KASAN: use-after-free Read in debugfs_remove (3) C done error 88 514d 981d 0/22 closed as dup on 2020/06/28 17:08
upstream KASAN: use-after-free Read in debugfs_remove 1 1174d 1173d 0/22 closed as invalid on 2018/04/10 15:18
linux-4.14 KASAN: use-after-free Read in debugfs_remove C inconclusive 14 237d 792d 0/1 upstream: reported C repro on 2019/04/17 06:08

Sample crash report:

Crashes (15):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-19 2020/09/01 23:20 linux-4.19.y f6d5cb9e abf9ba4f .config log report syz C
ci2-linux-4-19 2020/09/01 10:09 linux-4.19.y f6d5cb9e d5a3ae1f .config log report syz C
ci2-linux-4-19 2020/03/04 14:47 linux-4.19.y a083db76 712198ac .config log report syz C
ci2-linux-4-19 2019/11/05 20:37 linux-4.19.y ef244c30 af5c522d .config log report syz C
ci2-linux-4-19 2019/07/22 04:47 linux-4.19.y be9b6782 1656845f .config log report syz C
ci2-linux-4-19 2019/06/23 17:43 linux-4.19.y 78778071 3efccdd2 .config log report syz C
ci2-linux-4-19 2020/07/31 18:57 linux-4.19.y 13af6c74 8df85ed9 .config log report
ci2-linux-4-19 2020/07/06 08:13 linux-4.19.y 399849e4 ac5a135b .config log report
ci2-linux-4-19 2020/03/18 18:15 linux-4.19.y 93556fb2 0a96a13c .config log report
ci2-linux-4-19 2020/01/18 13:29 linux-4.19.y dc4ba5be 3de7aabb .config log report
ci2-linux-4-19 2020/01/14 11:14 linux-4.19.y dcd88898 32881205 .config log report
ci2-linux-4-19 2019/09/16 11:11 linux-4.19.y db2d0b7c 55c50e70 .config log report
ci2-linux-4-19 2019/08/16 09:22 linux-4.19.y a5aa8058 8fd428a1 .config log report
ci2-linux-4-19 2019/07/26 01:41 linux-4.19.y be9b6782 732bc5a0 .config log report
ci2-linux-4-19 2019/06/23 13:50 linux-4.19.y 78778071 3efccdd2 .config log report