syzbot


KASAN: use-after-free Read in ext4_xattr_set_entry (3)
Status: upstream: reported C repro on 2020/10/28 15:08
Reported-by: syzbot+4b7d3ef81b4049017236@syzkaller.appspotmail.com
First crash: 567d, last: 82d

Fix bisection: failed (bisect log)
similar bugs (11):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-414 KASAN: use-after-free Read in ext4_xattr_set_entry (2) 6 930d 986d 0/1 auto-closed as invalid on 2020/02/28 13:35
linux-4.14 KASAN: use-after-free Read in ext4_xattr_set_entry (2) 1 787d 787d 0/1 auto-closed as invalid on 2020/07/21 03:20
linux-4.19 KASAN: use-after-free Read in ext4_xattr_set_entry (2) C done 7 248d 706d 1/1 fixed on 2021/10/13 07:23
upstream KASAN: use-after-free Read in ext4_xattr_set_entry 1 1391d 1391d 0/22 closed as invalid on 2018/07/29 11:55
android-414 KASAN: use-after-free Read in ext4_xattr_set_entry 4 1238d 1131d 0/1 auto-closed as invalid on 2019/06/26 01:15
upstream KASAN: use-after-free Read in ext4_xattr_set_entry (3) 4 682d 801d 0/22 auto-closed as invalid on 2020/11/02 08:32
linux-4.19 KASAN: use-after-free Read in ext4_xattr_set_entry syz done 10 810d 1058d 1/1 fixed on 2020/03/30 09:03
upstream KASAN: use-after-free Read in ext4_xattr_set_entry (4) C error done 21 86d 473d 22/22 fixed on 2022/03/28 10:17
upstream KASAN: use-after-free Read in ext4_xattr_set_entry (2) C done 19 884d 1293d 16/22 fixed on 2020/02/14 01:19
android-54 KASAN: use-after-free Read in ext4_xattr_set_entry 6 650d 831d 0/2 auto-closed as invalid on 2020/12/04 21:44
linux-4.14 KASAN: use-after-free Read in ext4_xattr_set_entry C done 9 838d 930d 1/1 fixed on 2020/03/01 21:06

Sample crash report:

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-14 2020/10/28 15:08 linux-4.14.y 5b7a52cd2eef 96e03c1c .config log report syz C