syzbot


KASAN: use-after-free Read in ntfs_iget
Status: fixed on 2021/03/29 19:17
Reported-by: syzbot+f8f6a05924ba9a810722@syzkaller.appspotmail.com
Fix commit: 23e895868b51 ntfs: check for valid standard information attribute
First crash: 218d, last: 158d

Fix bisection: fixed by (bisect log) :
commit 23e895868b518f48eab7925aeb93aeeac3ac2594
Author: Rustam Kovhaev <rkovhaev@gmail.com>
Date: Wed Feb 24 20:00:30 2021 +0000

  ntfs: check for valid standard information attribute

similar bugs (4):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 KASAN: use-after-free Read in ntfs_iget C done 2 162d 238d 1/1 fixed on 2021/03/23 15:18
linux-4.19 KASAN: use-after-free Read in ntfs_iget (2) C done 1 41d 41d 1/1 fixed on 2021/07/22 23:24
upstream KASAN: use-after-free Read in ntfs_iget C error error 1 251d 247d 22/22 fixed on 2021/04/09 19:46
upstream KASAN: use-after-free Read in ntfs_iget (2) C inconclusive 2 59d 55d 19/22 upstream: reported C repro on 2021/06/07 15:55

Sample crash report:

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-19 2020/12/26 21:53 linux-4.19.y 13d2ce42de8c 821e0b09 .config log report syz C