syzbot


KASAN: use-after-free Read in ext4_data_block_valid
Status: upstream: reported on 2019/08/15 15:07
Reported-by: syzbot+8e2729dc9b40f5871aee@syzkaller.appspotmail.com
First crash: 91d, last: 91d
similar bugs (5):
Kernel Title Repro Bisected Count Last Reported Patched Status
android-414 KASAN: use-after-free Read in ext4_data_block_valid (2) 2 49d 53d 0/1 public: reported on 2019/09/22 01:15
upstream KASAN: use-after-free Read in ext4_data_block_valid 108 113d 560d 14/14 fixed on 2019/10/15 23:40
android-414 KASAN: use-after-free Read in ext4_data_block_valid 12 244d 215d 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 49d 112d 0/1 upstream: reported on 2019/07/25 07:12
android-49 KASAN: use-after-free Read in ext4_data_block_valid 21 318d 214d 0/3 auto-closed as invalid on 2019/06/29 18:27

Sample crash report:

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci2-linux-4-14 2019/08/15 14:06 linux-4.14.y 3ffe1e79 0d298d6b .config log report adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org, tytso@mit.edu