syzbot


KASAN: use-after-free Read in ext4_xattr_set_entry (4)
Status: upstream: reported C repro on 2021/01/30 11:05
Reported-by: syzbot+4cb1e27475bf90a9b926@syzkaller.appspotmail.com
First crash: 184d, last: 5d09h

Cause bisection: failed (bisect log)
similar bugs (13):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 KASAN: use-after-free Read in ext4_xattr_set_entry (3) C 1 3d11h 273d 0/1 upstream: reported C repro on 2020/10/28 15:08
android-414 KASAN: use-after-free Read in ext4_xattr_set_entry (2) 6 636d 692d 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 493d 493d 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 7 14d 412d 0/1 upstream: reported C repro on 2020/06/11 12:57
upstream KASAN: use-after-free Read in ext4_xattr_set_entry 1 1097d 1097d 0/22 closed as invalid on 2018/07/29 11:55
android-414 KASAN: use-after-free Read in ext4_xattr_set_entry 4 944d 837d 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 389d 507d 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 516d 764d 1/1 fixed on 2020/03/30 09:03
upstream KASAN: use-after-free Read in ext4_xattr_set_entry (2) C done 19 590d 999d 16/22 fixed on 2020/02/14 01:19
android-54 KASAN: use-after-free Read in ext4_xattr_set_entry 6 356d 537d 0/1 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 544d 636d 1/1 fixed on 2020/03/01 21:06
android-54 KASAN: out-of-bounds Read in ext4_xattr_set_entry C 1 129d 129d 0/1 upstream: reported C repro on 2021/03/21 22:06
linux-4.14 KASAN: out-of-bounds Read in ext4_xattr_set_entry C 2 15d 107d 0/1 upstream: reported C repro on 2021/04/12 14:20
Patch testing requests:
Created Duration User Patch Repo Result
2021/06/30 07:46 9m wanjiabing@vivo.com linux-next report log

Sample crash report:

Fix bisection attempts:
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2021/07/24 02:38 upstream f0fddcec6b62 52e37319 .config log report syz C
ci-upstream-kasan-gce-root 2021/06/23 20:37 upstream 7426cedc7dad 52e37319 .config log report syz C
ci-upstream-kasan-gce-root 2021/05/24 19:44 upstream 1434a3127887 52e37319 .config log report syz C
ci-upstream-kasan-gce-root 2021/04/24 19:06 upstream 2a1d7946fa53 52e37319 .config log report syz C
ci-upstream-kasan-gce-root 2021/03/03 18:26 upstream f69d02e37a85 52e37319 .config log report syz C
Crashes (2):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2021/01/26 10:55 upstream f8ad8187c3b5 52e37319 .config log report syz C KASAN: use-after-free Read in ext4_xattr_set_entry
ci-upstream-linux-next-kasan-gce-root 2021/03/25 13:43 linux-next 20f1b5f9c07c 607e3baf .config log report syz C KASAN: use-after-free Read in ext4_xattr_set_entry