syzbot


KASAN: use-after-free Read in ext4_data_block_valid
Status: auto-closed as invalid on 2020/09/26 20:10
Reported-by: syzbot+8e2729dc9b40f5871aee@syzkaller.appspotmail.com
First crash: 802d, last: 514d
similar bugs (6):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-414 KASAN: use-after-free Read in ext4_data_block_valid (2) 6 703d 765d 0/1 auto-closed as invalid on 2020/03/21 21:05
upstream KASAN: use-after-free Read in ext4_data_block_valid 108 825d 1271d 14/22 fixed on 2019/10/15 23:40
android-414 KASAN: use-after-free Read in ext4_data_block_valid 12 955d 927d 0/1 auto-closed as invalid on 2019/09/11 10:38
linux-4.19 KASAN: use-after-free Read in ext4_data_block_valid 2 761d 823d 0/1 auto-closed as invalid on 2020/01/24 00:27
android-49 KASAN: use-after-free Read in ext4_data_block_valid 21 1029d 925d 0/3 auto-closed as invalid on 2019/06/29 18:27
android-49 KASAN: use-after-free Read in ext4_data_block_valid (2) 1 700d 700d 0/3 auto-closed as invalid on 2020/03/24 07:08

Sample crash report:

Crashes (5):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-14 2020/05/29 20:09 linux-4.14.y 4f68020fef1c bed08304 .config log report
ci2-linux-4-14 2020/04/24 16:32 linux-4.14.y 050272a0423e 03d97a1b .config log report
ci2-linux-4-14 2020/02/29 16:22 linux-4.14.y 78d697fc93f9 c88c7b75 .config log report
ci2-linux-4-14 2019/11/20 16:27 linux-4.14.y 775d01b65b5d 432c7650 .config log report
ci2-linux-4-14 2019/08/15 14:06 linux-4.14.y 3ffe1e79c174 0d298d6b .config log report