syzbot


KASAN: use-after-free Write in __ext4_expand_extra_isize (2)
Status: fixed on 2019/12/13 00:31
Reported-by: syzbot+44b6763edfc17144296f@syzkaller.appspotmail.com
Fix commit: 4ea99936a163 ext4: add more paranoia checking in ext4_expand_extra_isize handling
First crash: 907d, last: 762d
duplicates (1):
Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
KASAN: use-after-free Write in ext4_mark_inode_dirty 5 766d 740d 0/22 closed as dup on 2019/11/29 12:55
similar bugs (4):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 KASAN: use-after-free Write in __ext4_expand_extra_isize 11 758d 870d 0/1 auto-closed as invalid on 2020/03/10 14:13
upstream KASAN: use-after-free Write in __ext4_expand_extra_isize C 95 955d 1346d 13/22 fixed on 2019/06/14 18:22
linux-4.19 KASAN: use-after-free Write in __ext4_expand_extra_isize 7 746d 807d 0/1 auto-closed as invalid on 2020/03/22 21:28
android-414 KASAN: use-after-free Write in __ext4_expand_extra_isize 65 738d 971d 0/1 auto-closed as invalid on 2020/03/31 02:59

Sample crash report:

Crashes (14):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-selinux-root 2019/11/03 07:23 upstream 9d2345057538 a41ca8fa .config log report
ci-upstream-kasan-gce-root 2019/10/29 09:51 upstream 8005803a2ca0 5ea87a66 .config log report
ci-upstream-kasan-gce-root 2019/10/28 22:05 upstream 9e5eefba3d09 439d7b14 .config log report
ci-upstream-kasan-gce-selinux-root 2019/10/05 08:19 upstream b145b0eb2031 f3f7d9c8 .config log report
ci-upstream-kasan-gce-root 2019/09/26 00:21 upstream f41def397161 a3355dba .config log report
ci-upstream-kasan-gce-root 2019/09/08 21:03 upstream 950b07c14e8c a60cb4cd .config log report
ci-upstream-kasan-gce-selinux-root 2019/08/27 16:12 upstream a55aa89aab90 d21c5d9d .config log report
ci-upstream-kasan-gce-root 2019/08/16 18:00 upstream a69e90512d9d 8fd428a1 .config log report
ci-upstream-kasan-gce-root 2019/06/21 00:37 upstream abf02e2964b3 34bf9440 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/11/07 11:08 linux-next c68c5373c504 d797d201 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/05 08:45 linux-next 311ef88adfa3 f3f7d9c8 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/09/23 05:27 linux-next b5b3bd898ba9 d96e88f3 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/09/10 05:32 linux-next 6d028043b55e a60cb4cd .config log report
ci-upstream-linux-next-kasan-gce-root 2019/06/15 08:09 linux-next f4788d37bc84 442206d7 .config log report