linux-ext4 - [syzbot] Monthly ext4 report (Jul 2023)

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Date:   Thu, 06 Jul 2023 07:18:48 -0700
From:   syzbot <syzbot+list863fc044988daa3042ea@...kaller.appspotmail.com>
To:     adilger.kernel@...ger.ca, linux-ext4@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        syzkaller-bugs@...glegroups.com, tytso@....edu
Subject: [syzbot] Monthly ext4 report (Jul 2023)

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, 8 new issues were detected and 3 were fixed.
In total, 51 issues are still open and 112 have been fixed so far.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  1186    Yes   WARNING: locking bug in ext4_move_extents
                   https://syzkaller.appspot.com/bug?extid=7f4a6f7f7051474e40ad
<2>  207     No    INFO: task hung in path_openat (7)
                   https://syzkaller.appspot.com/bug?extid=950a0cdaa2fdd14f5bdc
<3>  147     Yes   WARNING in ext4_file_write_iter
                   https://syzkaller.appspot.com/bug?extid=5050ad0fb47527b1808a
<4>  141     Yes   possible deadlock in quotactl_fd
                   https://syzkaller.appspot.com/bug?extid=cdcd444e4d3a256ada13
<5>  115     No    possible deadlock in evict (3)
                   https://syzkaller.appspot.com/bug?extid=dd426ae4af71f1e74729
<6>  97      Yes   WARNING: locking bug in __ext4_ioctl
                   https://syzkaller.appspot.com/bug?extid=a537ff48a9cb940d314c
<7>  52      Yes   WARNING: locking bug in ext4_ioctl
                   https://syzkaller.appspot.com/bug?extid=a3c8e9ac9f9d77240afd
<8>  24      Yes   kernel BUG in ext4_write_inline_data_end
                   https://syzkaller.appspot.com/bug?extid=198e7455f3a4f38b838a
<9>  5       Yes   INFO: task hung in ext4_evict_ea_inode
                   https://syzkaller.appspot.com/bug?extid=38e6635a03c83c76297a
<10> 5       Yes   KASAN: use-after-free Read in ext4_search_dir
                   https://syzkaller.appspot.com/bug?extid=34a0f26f0f61c4888ea4

---
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@...glegroups.com.

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