linux-cve-announce - CVE-2024-53682: regulator: axp20x: AXP717: set ramp

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Message-ID: <2025011157-CVE-2024-53682-263d@gregkh>
Date: Sat, 11 Jan 2025 13:29:58 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2024-53682: regulator: axp20x: AXP717: set ramp_delay

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

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

regulator: axp20x: AXP717: set ramp_delay

AXP717 datasheet says that regulator ramp delay is 15.625 us/step,
which is 10mV in our case.

Add a AXP_DESC_RANGES_DELAY macro and update AXP_DESC_RANGES macro to
expand to AXP_DESC_RANGES_DELAY with ramp_delay = 0

For DCDC4, steps is 100mv

Add a AXP_DESC_DELAY macro and update AXP_DESC macro to
expand to AXP_DESC_DELAY with ramp_delay = 0

This patch fix crashes when using CPU DVFS.

The Linux kernel CVE team has assigned CVE-2024-53682 to this issue.


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

	Issue introduced in 6.10 with commit d2ac3df75c3a995064cfac0171e082a30d8c4c66 and fixed in 6.12.6 with commit 10eb845a87193ef922cd002e0ff4f4759c1e918d
	Issue introduced in 6.10 with commit d2ac3df75c3a995064cfac0171e082a30d8c4c66 and fixed in 6.13-rc3 with commit f07ae52f5cf6a5584fdf7c8c652f027d90bc8b74

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-2024-53682
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/regulator/axp20x-regulator.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/10eb845a87193ef922cd002e0ff4f4759c1e918d
	https://git.kernel.org/stable/c/f07ae52f5cf6a5584fdf7c8c652f027d90bc8b74