linux-cve-announce - CVE-2025-38081: spi-rockchip: Fix register out of bounds access

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Message-ID: <2025061842-CVE-2025-38081-8916@gregkh>
Date: Wed, 18 Jun 2025 11:34:16 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2025-38081: spi-rockchip: Fix register out of bounds access

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

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

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

spi-rockchip: Fix register out of bounds access

Do not write native chip select stuff for GPIO chip selects.
GPIOs can be numbered much higher than native CS.
Also, it makes no sense.

The Linux kernel CVE team has assigned CVE-2025-38081 to this issue.


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

	Fixed in 6.6.93 with commit 4a120221661fcecb253448d7b041a52d47f1d91f
	Fixed in 6.12.31 with commit ace57bd1fb49d193edec5f6a1f255f48dd5fca90
	Fixed in 6.14.9 with commit 254e04ec799c1ff8c1e2bd08a57c6a849895d6ff
	Fixed in 6.15 with commit 7a874e8b54ea21094f7fd2d428b164394c6cb316

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-2025-38081
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/spi/spi-rockchip.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/4a120221661fcecb253448d7b041a52d47f1d91f
	https://git.kernel.org/stable/c/ace57bd1fb49d193edec5f6a1f255f48dd5fca90
	https://git.kernel.org/stable/c/254e04ec799c1ff8c1e2bd08a57c6a849895d6ff
	https://git.kernel.org/stable/c/7a874e8b54ea21094f7fd2d428b164394c6cb316