linux-cve-announce - CVE-2023-53043: arm64: dts: qcom: sc7280: Mark PCIe controller as cache coherent

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Message-ID: <2025050203-CVE-2023-53043-61cf@gregkh>
Date: Fri,  2 May 2025 17:55:08 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2023-53043: arm64: dts: qcom: sc7280: Mark PCIe controller as cache coherent

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

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

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

arm64: dts: qcom: sc7280: Mark PCIe controller as cache coherent

If the controller is not marked as cache coherent, then kernel will
try to ensure coherency during dma-ops and that may cause data corruption.
So, mark the PCIe node as dma-coherent as the devices on PCIe bus are
cache coherent.

The Linux kernel CVE team has assigned CVE-2023-53043 to this issue.


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

	Issue introduced in 5.16 with commit 92e0ee9f83b3bc1d5644b1dc36eae730d1e8694d and fixed in 6.1.22 with commit 267b899375bf38944d915c9654d6eb434edad0ce
	Issue introduced in 5.16 with commit 92e0ee9f83b3bc1d5644b1dc36eae730d1e8694d and fixed in 6.2.9 with commit e43bba938e2c9104bb4f8bc417ac4d7bb29755e1
	Issue introduced in 5.16 with commit 92e0ee9f83b3bc1d5644b1dc36eae730d1e8694d and fixed in 6.3 with commit 8a63441e83724fee1ef3fd37b237d40d90780766

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-2023-53043
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:
	arch/arm64/boot/dts/qcom/sc7280.dtsi


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/267b899375bf38944d915c9654d6eb434edad0ce
	https://git.kernel.org/stable/c/e43bba938e2c9104bb4f8bc417ac4d7bb29755e1
	https://git.kernel.org/stable/c/8a63441e83724fee1ef3fd37b237d40d90780766