---
id: CVE-2026-90122
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  clk: visconti: Make sure clk_init_data is fully initialized

  The clk_init_data structure contains several mutually-exclusive members
  for different methods to specify th…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  clk: visconti: Make sure clk_init_data is fully initialized

  The clk_init_data structure contains several mutually-exclusive members
  for different methods to specify th…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= b4cbe606dc3674b25cb661e7cd1a1c6ddaaafaaa <
    0e97c22b286e1918c6f48bad7e77fb8240a24b4a
  - >-
    Linux >= b4cbe606dc3674b25cb661e7cd1a1c6ddaaafaaa <
    9f756f1965bad65e6066608f33c36988cd10302a
  - >-
    Linux >= b4cbe606dc3674b25cb661e7cd1a1c6ddaaafaaa <
    1cc0539e5b0906bace15d3fc7347b344a017cc02
  - >-
    Linux >= b4cbe606dc3674b25cb661e7cd1a1c6ddaaafaaa <
    8f7980033e9f7ecaaecd873a0b5bf6b6c87d7e5a
  - >-
    Linux >= b4cbe606dc3674b25cb661e7cd1a1c6ddaaafaaa <
    5ecfa72e74c6e2a765fa5bc1da574e5beae588f2
  - >-
    Linux >= b4cbe606dc3674b25cb661e7cd1a1c6ddaaafaaa <
    39c0e6c844a14945040cca4ccf6997792ab764c4
  - Linux 5.17
published: '2026-09-17'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T17:17:04.420'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90122'
references:
  - url: 'https://git.kernel.org/stable/c/0e97c22b286e1918c6f48bad7e77fb8240a24b4a'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/1cc0539e5b0906bace15d3fc7347b344a017cc02'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/39c0e6c844a14945040cca4ccf6997792ab764c4'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/5ecfa72e74c6e2a765fa5bc1da574e5beae588f2'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/8f7980033e9f7ecaaecd873a0b5bf6b6c87d7e5a'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/9f756f1965bad65e6066608f33c36988cd10302a'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-17T16:21:47.885Z'
epss: 0.00206
epssPercentile: 0.10947
---

## Overview

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

clk: visconti: Make sure clk_init_data is fully initialized

The clk_init_data structure contains several mutually-exclusive members
for different methods to specify the possible parents of a clock,
prompting drivers to initialize only the members they need.  However,
not initializing all members may cause subtle issues, which are only
exposed when CONFIG_INIT_STACK_ALL_PATTERN or CONFIG_INIT_STACK_NONE is
enabled.

visconti_clk_register_gate() fills in init.parent_data, and assumes that
init.parent_names is NULL.  However, the latter in uninitialized, and
thus may cause a crash.

Make sure all members are fully initialized, to fix such bugs, and to
avoid future breakage when converting drivers to a different method for
specifying the parents.

## Remediation

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