linux-cve-announce - CVE-2025-71231: crypto: iaa - Fix out-of-bounds index in find_empty_iaa_compression

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Message-ID: <2026021805-CVE-2025-71231-5cc3@gregkh>
Date: Wed, 18 Feb 2026 15:54:02 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2025-71231: crypto: iaa - Fix out-of-bounds index in find_empty_iaa_compression_mode

From: Greg Kroah-Hartman <gregkh@...nel.org>

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

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

crypto: iaa - Fix out-of-bounds index in find_empty_iaa_compression_mode

The local variable 'i' is initialized with -EINVAL, but the for loop
immediately overwrites it and -EINVAL is never returned.

If no empty compression mode can be found, the function would return the
out-of-bounds index IAA_COMP_MODES_MAX, which would cause an invalid
array access in add_iaa_compression_mode().

Fix both issues by returning either a valid index or -EINVAL.

The Linux kernel CVE team has assigned CVE-2025-71231 to this issue.


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

	Fixed in 6.12.72 with commit c77b33b58512708bd5603f48465f018c8b748847
	Fixed in 6.18.11 with commit d75207465eed20bc9b0daa4a0927de9568996067
	Fixed in 6.19.1 with commit de16f5bca05cace238d237791ed1b6e9d22dab60

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-2025-71231
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:
	drivers/crypto/intel/iaa/iaa_crypto_main.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/c77b33b58512708bd5603f48465f018c8b748847
	https://git.kernel.org/stable/c/d75207465eed20bc9b0daa4a0927de9568996067
	https://git.kernel.org/stable/c/de16f5bca05cace238d237791ed1b6e9d22dab60
	https://git.kernel.org/stable/c/48329301969f6d21b2ef35f678e40f72b59eac94