[syzbot] Monthly hfs report (Jan 2026)

[syzbot]

Hello hfs maintainers/developers,

This is a 31-day syzbot report for the hfs subsystem.
All related reports/information can be found at:
https://syzkaller.appspot.com/upstream/s/hfs

During the period, 3 new issues were detected and 0 were fixed.
In total, 27 issues are still open and 31 have already been fixed.

Some of the still happening issues:

Ref Crashes Repro Title
<1> 171177 Yes kernel BUG in hfs_write_inode
https://syzkaller.appspot.com/bug?extid=97e301b4b82ae803d21b
<2> 15126 Yes possible deadlock in hfsplus_get_block
https://syzkaller.appspot.com/bug?extid=b7ef7c0c8d8098686ae2
<3> 6459 Yes possible deadlock in hfs_find_init (2)
https://syzkaller.appspot.com/bug?extid=e390d66dda462b51fde1
<4> 6097 Yes WARNING in hfs_bnode_create
https://syzkaller.appspot.com/bug?extid=a19ca73b21fe8bc69101
<5> 3448 Yes possible deadlock in hfs_extend_file (3)
https://syzkaller.appspot.com/bug?extid=2a62f58f1a4951a549bb
<6> 1848 Yes KMSAN: uninit-value in hfsplus_rename_cat
https://syzkaller.appspot.com/bug?extid=93f4402297a457fc6895
<7> 939 Yes possible deadlock in hfsplus_find_init
https://syzkaller.appspot.com/bug?extid=f8ce6c197125ab9d72ce
<8> 877 Yes WARNING in mark_buffer_dirty (7)
https://syzkaller.appspot.com/bug?extid=2327bccb02eef9291c1c
<9> 763 Yes possible deadlock in hfsplus_file_extend (2)
https://syzkaller.appspot.com/bug?extid=4cba2fd444e9a16ae758
<10> 469 Yes KASAN: wild-memory-access Read in hfsplus_bnode_dump
https://syzkaller.appspot.com/bug?extid=f687659f3c2acfa34201

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