---
id: CVE-2024-40941
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: iwlwifi: mvm: don't read past the mfuart notifcation

  In case the firmware sends a notification that claims it has more data
  than it has, we will read past that w…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: iwlwifi: mvm: don't read past the mfuart notifcation

  In case the firmware sends a notification that claims it has more data
  than it has, we will read past that w…
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H'
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 4.12, < 4.19.317'
  - 'linux_kernel >= 4.20, < 5.4.279'
  - 'linux_kernel >= 5.5, < 5.10.221'
  - 'linux_kernel >= 5.11, < 5.15.162'
  - 'linux_kernel >= 5.16, < 6.1.95'
  - 'linux_kernel >= 6.2, < 6.6.35'
  - 'linux_kernel >= 6.7, < 6.9.6'
  - linux_kernel = 6.10
patched:
  - linux_kernel 6.9.6
published: '2024-07-12'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T01:18:37.667'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2024-40941'
references:
  - url: 'https://git.kernel.org/stable/c/15b37c6fab9d5e40ac399fa1c725118588ed649c'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/46c59a25337049a2a230ce7f7c3b9f21d0aaaad7'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/4bb95f4535489ed830cf9b34b0a891e384d1aee4'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/6532f18e66b384b8d4b7e5c9caca042faaa9e8de'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/65686118845d427df27ee83a6ddd4885596b0805'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/a05018739a5e6b9dc112c95bd4c59904062c8940'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/a8bc8276af9aeacabb773f0c267cfcdb847c6f2d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/acdfa33c3cf5e1cd185cc1e0486bd0ea9f09c154'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/15b37c6fab9d5e40ac399fa1c725118588ed649c'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/46c59a25337049a2a230ce7f7c3b9f21d0aaaad7'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/4bb95f4535489ed830cf9b34b0a891e384d1aee4'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/6532f18e66b384b8d4b7e5c9caca042faaa9e8de'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/65686118845d427df27ee83a6ddd4885596b0805'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/a05018739a5e6b9dc112c95bd4c59904062c8940'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/a8bc8276af9aeacabb773f0c267cfcdb847c6f2d'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/acdfa33c3cf5e1cd185cc1e0486bd0ea9f09c154'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-265688.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-355557.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
  - cve.org
epss: 0.004
epssPercentile: 0.34069
ingestedAt: '2026-10-15T03:30:12.721Z'
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2024-09-10T17:04:27.174658Z'
---

## Overview

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

wifi: iwlwifi: mvm: don't read past the mfuart notifcation

In case the firmware sends a notification that claims it has more data
than it has, we will read past that was allocated for the notification.
Remove the print of the buffer, we won't see it by default. If needed,
we can see the content with tracing.

This was reported by KFENCE.

## Affected

- `linux_kernel >= 4.12, < 4.19.317`
- `linux_kernel >= 4.20, < 5.4.279`
- `linux_kernel >= 5.5, < 5.10.221`
- `linux_kernel >= 5.11, < 5.15.162`
- `linux_kernel >= 5.16, < 6.1.95`
- `linux_kernel >= 6.2, < 6.6.35`
- `linux_kernel >= 6.7, < 6.9.6`
- `linux_kernel = 6.10`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.9.6`