---
id: CVE-2026-98363
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  firmware: arm_scpi: reject DVFS OPP count above MAX_DVFS_OPPS

  scpi_dvfs_get_info() already rejected a zero opp_count, but still trusted
  any larger value from the SCP f…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  firmware: arm_scpi: reject DVFS OPP count above MAX_DVFS_OPPS

  scpi_dvfs_get_info() already rejected a zero opp_count, but still trusted
  any larger value from the SCP f…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 8cb7cf56c9fe5412de238465b27ef35b4d2801aa <
    e9887eeaa138c6b5697af3d2f7c71dc82407b154
  - >-
    Linux >= 8cb7cf56c9fe5412de238465b27ef35b4d2801aa <
    1aadbef648e92ca642125f188f99b0a26628e3ba
  - >-
    Linux >= 8cb7cf56c9fe5412de238465b27ef35b4d2801aa <
    7daaa684097377b66b98a832de307688a7f3bbc7
  - >-
    Linux >= 8cb7cf56c9fe5412de238465b27ef35b4d2801aa <
    f17865332cc4ceaac846bcd7c28badbaedfabeff
  - >-
    Linux >= 8cb7cf56c9fe5412de238465b27ef35b4d2801aa <
    0130f9ad3974a5b2ad0fa03d0b300a9fb83ed901
  - >-
    Linux >= 8cb7cf56c9fe5412de238465b27ef35b4d2801aa <
    69ec03cd481973e4be44a7158ed6c0fa06a9a5f9
  - >-
    Linux >= 8cb7cf56c9fe5412de238465b27ef35b4d2801aa <
    cc563a59aded6f3b02d75dcc3c0bc5e90755d99e
  - >-
    Linux >= 8cb7cf56c9fe5412de238465b27ef35b4d2801aa <
    32471d84a487c7fd74532bc96be56f8028cf4a3f
  - Linux 4.4
published: '2026-10-06'
updated: '2026-10-06'
sourceUpdated: '2026-10-06T09:18:30.297'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-98363'
references:
  - url: 'https://git.kernel.org/stable/c/0130f9ad3974a5b2ad0fa03d0b300a9fb83ed901'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/1aadbef648e92ca642125f188f99b0a26628e3ba'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/32471d84a487c7fd74532bc96be56f8028cf4a3f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/69ec03cd481973e4be44a7158ed6c0fa06a9a5f9'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7daaa684097377b66b98a832de307688a7f3bbc7'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/cc563a59aded6f3b02d75dcc3c0bc5e90755d99e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/e9887eeaa138c6b5697af3d2f7c71dc82407b154'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/f17865332cc4ceaac846bcd7c28badbaedfabeff'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-06T08:50:17.391Z'
---

## Overview

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

firmware: arm_scpi: reject DVFS OPP count above MAX_DVFS_OPPS

scpi_dvfs_get_info() already rejected a zero opp_count, but still trusted
any larger value from the SCP firmware. The shared-memory reply only holds
MAX_DVFS_OPPS entries in buf.opps[]; a bigger count over-reads that array
and then sizes the allocated OPP table incorrectly (garbage OPPs / OOB).
The missing upper bound dates back to the original SCPI DVFS support.

Reject zero and out-of-range counts in one check and return -EINVAL.

## Remediation

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