---
id: CVE-2026-98889
title: 'wifi: iwlwifi: mvm: fix sched scan IE sizing'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: iwlwifi: mvm: fix sched scan IE sizing

  Scheduled scan built the probe request before iwl_mvm_scan_fits(),
  so oversized IEs could be copied into the fixed preq bu…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= eae94cf82d7456b57fa9fd55c1edb8a726dcc19c <
    f2268060e99f94314b9988dfa17393c2694fa9b2
  - >-
    Linux >= eae94cf82d7456b57fa9fd55c1edb8a726dcc19c <
    358eca9a898ad4cce7453e9dcfd005d019a2b01f
  - >-
    Linux >= eae94cf82d7456b57fa9fd55c1edb8a726dcc19c <
    05f79cea3b15cfe600b205ddcfd51ebee15d908a
  - >-
    Linux >= eae94cf82d7456b57fa9fd55c1edb8a726dcc19c <
    a24417478f90e9f1a4ea24cd4b784afccb56fbae
  - >-
    Linux >= eae94cf82d7456b57fa9fd55c1edb8a726dcc19c <
    0a63f98e5163a2ec2822dfb691ee5a6094de08ec
  - >-
    Linux >= eae94cf82d7456b57fa9fd55c1edb8a726dcc19c <
    4f155d262b31b9b17e0f9856bdabe0968eb4930f
  - Linux 5.11
published: '2026-10-23'
updated: '2026-10-26'
sourceUpdated: '2026-10-26T06:56:14.362Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-98889'
references:
  - url: 'https://git.kernel.org/stable/c/f2268060e99f94314b9988dfa17393c2694fa9b2'
  - url: 'https://git.kernel.org/stable/c/358eca9a898ad4cce7453e9dcfd005d019a2b01f'
  - url: 'https://git.kernel.org/stable/c/05f79cea3b15cfe600b205ddcfd51ebee15d908a'
  - url: 'https://git.kernel.org/stable/c/a24417478f90e9f1a4ea24cd4b784afccb56fbae'
  - url: 'https://git.kernel.org/stable/c/0a63f98e5163a2ec2822dfb691ee5a6094de08ec'
  - url: 'https://git.kernel.org/stable/c/4f155d262b31b9b17e0f9856bdabe0968eb4930f'
tags:
  - cve.org
epss: 0.00169
epssPercentile: 0.06286
ingestedAt: '2026-10-23T13:24:55.578Z'
---

## Overview

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

wifi: iwlwifi: mvm: fix sched scan IE sizing

Scheduled scan built the probe request before iwl_mvm_scan_fits(),
so oversized IEs could be copied into the fixed preq buffer before
length validation. Move iwl_mvm_build_scan_probe() after the fits
check.

Also advertise max_sched_scan_ie_len using iwl_mvm_max_scan_ie_len()
so userspace limits account for driver-inserted DS/TPC bytes.

## Affected

- `Linux >= eae94cf82d7456b57fa9fd55c1edb8a726dcc19c < f2268060e99f94314b9988dfa17393c2694fa9b2`
- `Linux >= eae94cf82d7456b57fa9fd55c1edb8a726dcc19c < 358eca9a898ad4cce7453e9dcfd005d019a2b01f`
- `Linux >= eae94cf82d7456b57fa9fd55c1edb8a726dcc19c < 05f79cea3b15cfe600b205ddcfd51ebee15d908a`
- `Linux >= eae94cf82d7456b57fa9fd55c1edb8a726dcc19c < a24417478f90e9f1a4ea24cd4b784afccb56fbae`
- `Linux >= eae94cf82d7456b57fa9fd55c1edb8a726dcc19c < 0a63f98e5163a2ec2822dfb691ee5a6094de08ec`
- `Linux >= eae94cf82d7456b57fa9fd55c1edb8a726dcc19c < 4f155d262b31b9b17e0f9856bdabe0968eb4930f`
- `Linux 5.11`

## Remediation

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