---
id: CVE-2025-38041
title: 'clk: sunxi-ng: h616: Reparent GPU clock during frequency changes'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  clk: sunxi-ng: h616: Reparent GPU clock during frequency changes

  The H616 manual does not state that the GPU PLL supports
  dynamic frequency configuration, so we must t…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 88dde5e23da1a16fe9a417171e6c941736b8d3a6 <
    5b447255bf170aee508d50c4a3a1156eb6dcc9b4
  - >-
    Linux >= 88dde5e23da1a16fe9a417171e6c941736b8d3a6 <
    47a0da0c80749767de1bc0a7a27a69b34c22fbda
  - >-
    Linux >= 88dde5e23da1a16fe9a417171e6c941736b8d3a6 <
    0c4f89f02c72f7cfb98a9a09cae89cc2e39e6017
  - >-
    Linux >= 88dde5e23da1a16fe9a417171e6c941736b8d3a6 <
    1439673b78185eaaa5fae444b3a9d58c434ee78e
  - >-
    Linux >= 88dde5e23da1a16fe9a417171e6c941736b8d3a6 <
    eb963d7948ce6571939c6875424b557b25f16610
  - Linux 5.12
published: '2025-06-18'
updated: '2026-10-30'
sourceUpdated: '2026-10-30T12:21:33.881Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2025-38041'
references:
  - url: 'https://git.kernel.org/stable/c/5b447255bf170aee508d50c4a3a1156eb6dcc9b4'
  - url: 'https://git.kernel.org/stable/c/47a0da0c80749767de1bc0a7a27a69b34c22fbda'
  - url: 'https://git.kernel.org/stable/c/0c4f89f02c72f7cfb98a9a09cae89cc2e39e6017'
  - url: 'https://git.kernel.org/stable/c/1439673b78185eaaa5fae444b3a9d58c434ee78e'
  - url: 'https://git.kernel.org/stable/c/eb963d7948ce6571939c6875424b557b25f16610'
tags:
  - cve.org
epss: 0.00237
epssPercentile: 0.14745
ingestedAt: '2026-10-21T12:48:53.709Z'
---

## Overview

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

clk: sunxi-ng: h616: Reparent GPU clock during frequency changes

The H616 manual does not state that the GPU PLL supports
dynamic frequency configuration, so we must take extra care when changing
the frequency. Currently any attempt to do device DVFS on the GPU lead
to panfrost various ooops, and GPU hangs.

The manual describes the algorithm for changing the PLL
frequency, which the CPU PLL notifier code already support, so we reuse
that to reparent the GPU clock to GPU1 clock during frequency
changes.

## Affected

- `Linux >= 88dde5e23da1a16fe9a417171e6c941736b8d3a6 < 5b447255bf170aee508d50c4a3a1156eb6dcc9b4`
- `Linux >= 88dde5e23da1a16fe9a417171e6c941736b8d3a6 < 47a0da0c80749767de1bc0a7a27a69b34c22fbda`
- `Linux >= 88dde5e23da1a16fe9a417171e6c941736b8d3a6 < 0c4f89f02c72f7cfb98a9a09cae89cc2e39e6017`
- `Linux >= 88dde5e23da1a16fe9a417171e6c941736b8d3a6 < 1439673b78185eaaa5fae444b3a9d58c434ee78e`
- `Linux >= 88dde5e23da1a16fe9a417171e6c941736b8d3a6 < eb963d7948ce6571939c6875424b557b25f16610`
- `Linux 5.12`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.