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

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Date:   Wed, 08 Nov 2023 15:44:21 -0800
From:   syzbot <syzbot+list07d69efc5e1d32eac754@...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 (Nov 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, 2 new issues were detected and 0 were fixed.
In total, 41 issues are still open and 118 have been fixed so far.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  51606   Yes   possible deadlock in console_flush_all (2)
                   https://syzkaller.appspot.com/bug?extid=f78380e4eae53c64125c
<2>  10182   Yes   KASAN: slab-out-of-bounds Read in generic_perform_write
                   https://syzkaller.appspot.com/bug?extid=4a2376bc62e59406c414
<3>  5928    Yes   WARNING: locking bug in ext4_move_extents
                   https://syzkaller.appspot.com/bug?extid=7f4a6f7f7051474e40ad
<4>  470     Yes   WARNING: locking bug in __ext4_ioctl
                   https://syzkaller.appspot.com/bug?extid=a537ff48a9cb940d314c
<5>  207     Yes   WARNING: locking bug in ext4_ioctl
                   https://syzkaller.appspot.com/bug?extid=a3c8e9ac9f9d77240afd
<6>  150     No    possible deadlock in evict (3)
                   https://syzkaller.appspot.com/bug?extid=dd426ae4af71f1e74729
<7>  101     Yes   INFO: task hung in sync_inodes_sb (5)
                   https://syzkaller.appspot.com/bug?extid=30476ec1b6dc84471133
<8>  30      Yes   kernel BUG in ext4_write_inline_data_end
                   https://syzkaller.appspot.com/bug?extid=198e7455f3a4f38b838a
<9>  16      No    possible deadlock in start_this_handle (4)
                   https://syzkaller.appspot.com/bug?extid=cf0b4280f19be4031cf2
<10> 13      Yes   INFO: rcu detected stall in sys_unlink (3)
                   https://syzkaller.appspot.com/bug?extid=c4f62ba28cc1290de764

---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
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