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, 2 new issues were detected and 2 were fixed. In total, 50 issues are still open and 151 have already been fixed. Some of the still happening issues: Ref Crashes Repro Title <1> 48268 Yes possible deadlock in dqget https://syzkaller.appspot.com/bug?extid=6e493c165d26d6fcbf72 <2> 2372 Yes INFO: task hung in sync_inodes_sb (5) https://syzkaller.appspot.com/bug?extid=30476ec1b6dc84471133 <3> 2085 Yes kernel BUG in ext4_do_writepages https://syzkaller.appspot.com/bug?extid=d1da16f03614058fdc48 <4> 2062 Yes INFO: task hung in jbd2_journal_commit_transaction (5) https://syzkaller.appspot.com/bug?extid=3071bdd0a9953bc0d177 <5> 1515 Yes KASAN: out-of-bounds Read in ext4_xattr_set_entry https://syzkaller.appspot.com/bug?extid=f792df426ff0f5ceb8d1 <6> 383 Yes INFO: task hung in do_get_write_access (3) https://syzkaller.appspot.com/bug?extid=e7c786ece54bad9d1e43 <7> 283 No KCSAN: data-race in generic_buffers_fsync_noflush / writeback_single_inode (3) https://syzkaller.appspot.com/bug?extid=35257a2200785ea628f5 <8> 186 Yes KMSAN: uninit-value in aes_encrypt (5) https://syzkaller.appspot.com/bug?extid=aeb14e2539ffb6d21130 <9> 100 Yes WARNING: locking bug in find_lock_lowest_rq https://syzkaller.appspot.com/bug?extid=9a3a26ce3bf119f0190b <10> 79 Yes KASAN: slab-out-of-bounds Read in ext4_read_inline_dir https://syzkaller.appspot.com/bug?extid=ee5f6a9c86b42ed64fec --- 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.
