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, 5 new issues were detected and 0 were fixed. In total, 42 issues are still open and 147 have already been fixed. Some of the still happening issues: Ref Crashes Repro Title <1> 9746 Yes possible deadlock in dqget https://syzkaller.appspot.com/bug?extid=6e493c165d26d6fcbf72 <2> 1883 Yes INFO: task hung in sync_inodes_sb (5) https://syzkaller.appspot.com/bug?extid=30476ec1b6dc84471133 <3> 1574 Yes kernel BUG in ext4_do_writepages https://syzkaller.appspot.com/bug?extid=d1da16f03614058fdc48 <4> 1549 Yes INFO: task hung in jbd2_journal_commit_transaction (5) https://syzkaller.appspot.com/bug?extid=3071bdd0a9953bc0d177 <5> 910 Yes WARNING: locking bug in ext4_ioctl https://syzkaller.appspot.com/bug?extid=a3c8e9ac9f9d77240afd <6> 845 Yes WARNING: locking bug in __ext4_ioctl https://syzkaller.appspot.com/bug?extid=a537ff48a9cb940d314c <7> 306 Yes KASAN: out-of-bounds Read in ext4_xattr_set_entry https://syzkaller.appspot.com/bug?extid=f792df426ff0f5ceb8d1 <8> 109 Yes KMSAN: uninit-value in aes_encrypt (5) https://syzkaller.appspot.com/bug?extid=aeb14e2539ffb6d21130 <9> 70 No KCSAN: data-race in generic_buffers_fsync_noflush / writeback_single_inode (3) https://syzkaller.appspot.com/bug?extid=35257a2200785ea628f5 <10> 54 Yes INFO: rcu detected stall in sys_pselect6 (2) https://syzkaller.appspot.com/bug?extid=310c88228172bcf54bef --- 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.
