Hello udf maintainers/developers, This is a 31-day syzbot report for the udf subsystem. All related reports/information can be found at: https://syzkaller.appspot.com/upstream/s/udf During the period, 5 new issues were detected and 1 were fixed. In total, 18 issues are still open and 18 have been fixed so far. Some of the still happening issues: Ref Crashes Repro Title <1> 780 Yes WARNING in udf_truncate_extents https://syzkaller.appspot.com/bug?extid=43fc5ba6dcb33e3261ca <2> 60 Yes KASAN: use-after-free Write in udf_close_lvid https://syzkaller.appspot.com/bug?extid=60864ed35b1073540d57 <3> 5 Yes KASAN: use-after-free Read in udf_finalize_lvid https://syzkaller.appspot.com/bug?extid=46073c22edd7f242c028 <4> 4 Yes WARNING in udf_setsize (2) https://syzkaller.appspot.com/bug?extid=db6df8c0f578bc11e50e <5> 3 Yes WARNING in __udf_add_aext (2) https://syzkaller.appspot.com/bug?extid=e381e4c52ca8a53c3af7 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. To disable reminders for individual bugs, reply with the following command: #syz set <Ref> no-reminders To change bug's subsystems, reply with: #syz set <Ref> subsystems: new-subsystem You may send multiple commands in a single email message.