---
id: CVE-2026-98892
title: 'firmware: arm_scmi: Validate BASE_ERROR_EVENT payload size'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  firmware: arm_scmi: Validate BASE_ERROR_EVENT payload size

  BASE_ERROR_EVENT carries a variable number of message reports,
  with the count encoded in error_status. The n…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    4a754704698017ced0b657c92b468035faad00ed
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    28d65a0a46435d48b96b6943c518095dff1602a1
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    890a9c3bf9dae90dcabded9d8e10c708a13779f7
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    c0742f23ec13fb6f5e0cd884323467a6c127d3c2
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    bd8bc95ef2daa3bac56197cffcbf2d4c5ed42216
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    cb77a50d1114c0c9e084176301a8e094d383edfa
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    56e7e64cdd0e7209a58c8ec66028d63387402919
  - Linux < 5.10.271
  - Linux < 5.15.222
  - Linux < 6.1.189
  - Linux < 6.6.158
  - Linux < 6.12.111
  - Linux < 6.18.53
  - Linux (all versions)
published: '2026-10-23'
updated: '2026-10-23'
sourceUpdated: '2026-10-23T11:37:52.692Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-98892'
references:
  - url: 'https://git.kernel.org/stable/c/4a754704698017ced0b657c92b468035faad00ed'
  - url: 'https://git.kernel.org/stable/c/28d65a0a46435d48b96b6943c518095dff1602a1'
  - url: 'https://git.kernel.org/stable/c/890a9c3bf9dae90dcabded9d8e10c708a13779f7'
  - url: 'https://git.kernel.org/stable/c/c0742f23ec13fb6f5e0cd884323467a6c127d3c2'
  - url: 'https://git.kernel.org/stable/c/bd8bc95ef2daa3bac56197cffcbf2d4c5ed42216'
  - url: 'https://git.kernel.org/stable/c/cb77a50d1114c0c9e084176301a8e094d383edfa'
  - url: 'https://git.kernel.org/stable/c/56e7e64cdd0e7209a58c8ec66028d63387402919'
tags:
  - cve.org
ingestedAt: '2026-10-23T13:24:55.577Z'
---

## Overview

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

firmware: arm_scmi: Validate BASE_ERROR_EVENT payload size

BASE_ERROR_EVENT carries a variable number of message reports,
with the count encoded in error_status. The notification parser used
that count without checking whether the received payload contained all
reported entries.

Reject truncated payloads before copying the report array.

## Affected

- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 4a754704698017ced0b657c92b468035faad00ed`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 28d65a0a46435d48b96b6943c518095dff1602a1`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 890a9c3bf9dae90dcabded9d8e10c708a13779f7`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < c0742f23ec13fb6f5e0cd884323467a6c127d3c2`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < bd8bc95ef2daa3bac56197cffcbf2d4c5ed42216`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < cb77a50d1114c0c9e084176301a8e094d383edfa`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 56e7e64cdd0e7209a58c8ec66028d63387402919`
- `Linux < 5.10.271`
- `Linux < 5.15.222`
- `Linux < 6.1.189`
- `Linux < 6.6.158`
- `Linux < 6.12.111`
- `Linux < 6.18.53`
- `Linux (all versions)`

## Remediation

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