Hello ext4 maintainers/developers, This is a 31-day syzbot report for the ext4 subsystem. All related reports/information can be found at: https://syzkaller.appspot.com/upstream/s/ext4 During the period, 6 new issues were detected and 1 were fixed. In total, 49 issues are still open and 113 have been fixed so far. Some of the still happening issues: Ref Crashes Repro Title <1> 2159 Yes WARNING: locking bug in ext4_move_extents https://syzkaller.appspot.com/bug?extid=7f4a6f7f7051474e40ad <2> 178 Yes WARNING: locking bug in __ext4_ioctl https://syzkaller.appspot.com/bug?extid=a537ff48a9cb940d314c <3> 125 No possible deadlock in evict (3) https://syzkaller.appspot.com/bug?extid=dd426ae4af71f1e74729 <4> 85 Yes WARNING: locking bug in ext4_ioctl https://syzkaller.appspot.com/bug?extid=a3c8e9ac9f9d77240afd <5> 52 No INFO: task hung in __writeback_inodes_sb_nr (6) https://syzkaller.appspot.com/bug?extid=38d04642cea49f3a3d2e <6> 39 Yes INFO: task hung in sync_inodes_sb (5) https://syzkaller.appspot.com/bug?extid=30476ec1b6dc84471133 <7> 26 Yes kernel BUG in ext4_write_inline_data_end https://syzkaller.appspot.com/bug?extid=198e7455f3a4f38b838a <8> 9 Yes INFO: task hung in find_inode_fast (2) https://syzkaller.appspot.com/bug?extid=adfd362e7719c02b3015 <9> 6 Yes KASAN: out-of-bounds Read in ext4_ext_remove_space https://syzkaller.appspot.com/bug?extid=6e5f2db05775244c73b7 <10> 6 Yes KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock https://syzkaller.appspot.com/bug?extid=db6caad9ebd2c8022b41 --- 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.
