linux-cve-announce - CVE-2024-58010: binfmt_flat: Fix integer overflow bug on 32 bit systems

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Message-ID: <2025022656-CVE-2024-58010-39bc@gregkh>
Date: Wed, 26 Feb 2025 18:11:04 -0800
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2024-58010: binfmt_flat: Fix integer overflow bug on 32 bit systems

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

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

binfmt_flat: Fix integer overflow bug on 32 bit systems

Most of these sizes and counts are capped at 256MB so the math doesn't
result in an integer overflow.  The "relocs" count needs to be checked
as well.  Otherwise on 32bit systems the calculation of "full_data"
could be wrong.

	full_data = data_len + relocs * sizeof(unsigned long);

The Linux kernel CVE team has assigned CVE-2024-58010 to this issue.


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

	Issue introduced in 4.8 with commit c995ee28d29d6f256c3a8a6c4e66469554374f25 and fixed in 6.1.129 with commit 95506c7f33452450346fbe2975c1359100f854ca
	Issue introduced in 4.8 with commit c995ee28d29d6f256c3a8a6c4e66469554374f25 and fixed in 6.6.78 with commit d17ca8f2dfcf423c439859995910a20e38b86f00
	Issue introduced in 4.8 with commit c995ee28d29d6f256c3a8a6c4e66469554374f25 and fixed in 6.12.14 with commit a009378af674b808efcca1e2e67916e79ce866b3
	Issue introduced in 4.8 with commit c995ee28d29d6f256c3a8a6c4e66469554374f25 and fixed in 6.13.3 with commit 8e8cd712bb06a507b26efd2a56155076aa454345
	Issue introduced in 4.8 with commit c995ee28d29d6f256c3a8a6c4e66469554374f25 and fixed in 6.14-rc1 with commit 55cf2f4b945f6a6416cc2524ba740b83cc9af25a

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-2024-58010
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/binfmt_flat.c


Mitigation
==========

The Linux kernel CVE team recommends that you update to the latest
stable kernel version for this, and many other bugfixes.  Individual
changes are never tested alone, but rather are part of a larger kernel
release.  Cherry-picking individual commits is not recommended or
supported by the Linux kernel community at all.  If however, updating to
the latest release is impossible, the individual changes to resolve this
issue can be found at these commits:
	https://git.kernel.org/stable/c/95506c7f33452450346fbe2975c1359100f854ca
	https://git.kernel.org/stable/c/d17ca8f2dfcf423c439859995910a20e38b86f00
	https://git.kernel.org/stable/c/a009378af674b808efcca1e2e67916e79ce866b3
	https://git.kernel.org/stable/c/8e8cd712bb06a507b26efd2a56155076aa454345
	https://git.kernel.org/stable/c/55cf2f4b945f6a6416cc2524ba740b83cc9af25a