[syzbot] Monthly ext4 report (Apr 2025)

[syzbot]

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

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