linux-cve-announce - CVE-2025-0927: heap overflow in the hfs and hfsplus filesystems with manually crafted filesystem

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Message-ID: <2025033057-CVE-2025-0927-1436@gregkh>
Date: Sun, 30 Mar 2025 20:55:57 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2025-0927: heap overflow in the hfs and hfsplus filesystems with manually crafted filesystem

Description
===========

In the Linux kernel, the following vulnerability has been found:

A heap overflow in the hfs and hfsplus filesystems can happen if a user
mounts a manually crafted filesystem.

At this point in time, it is not fixed in any released kernel version,
this is a stop-gap report to notify that kernel.org is now the owner of
this CVE id.

The Linux kernel CVE team has been assigned CVE-2025-0927 as it was
incorrectly created by a different CNA that really should have known
better to not have done this.to this issue.

Affected and fixed versions
===========================

	All released kernel versions are affected.

Please see https://www.kernel.org for a full list of currently supported
kernel versions by the kernel community.

Unaffected versions might change over time as fixes are backported to
older supported kernel versions.  The official CVE entry at
	https://cve.org/CVERecord/?id=CVE-2025-0927
will be updated if fixes are backported, please check that for the most
up to date information about this issue.

Affected files
==============

The file(s) affected by this issue are:
	fs/hfs/bnode.c
	fs/hfsplus/bnode.c

Mitigation
==========

Do not allow users to mount untrusted filesystem images.