---
id: CVE-2024-43879
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: cfg80211: handle 2x996 RU allocation in cfg80211_calculate_bitrate_he()

  Currently NL80211_RATE_INFO_HE_RU_ALLOC_2x996 is not handled in
  cfg80211_calculate_bitrat…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: cfg80211: handle 2x996 RU allocation in cfg80211_calculate_bitrate_he()

  Currently NL80211_RATE_INFO_HE_RU_ALLOC_2x996 is not handled in
  cfg80211_calculate_bitrat…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 4.19, < 4.19.320'
  - 'linux_kernel >= 4.20, < 5.4.282'
  - 'linux_kernel >= 5.5, < 5.10.224'
  - 'linux_kernel >= 5.11, < 5.15.165'
  - 'linux_kernel >= 5.16, < 6.1.103'
  - 'linux_kernel >= 6.2, < 6.6.44'
  - 'linux_kernel >= 6.7, < 6.10.3'
patched:
  - linux_kernel 6.10.3
published: '2024-08-21'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T01:18:48.667'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2024-43879'
references:
  - url: 'https://git.kernel.org/stable/c/16ad67e73309db0c20cc2a651992bd01c05e6b27'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/19eaf4f2f5a981f55a265242ada2bf92b0c742dd'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/2e201b3d162c6c49417c438ffb30b58c9f85769f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/45d20a1c54be4f3173862c7b950d4468447814c9'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/576c64622649f3ec07e97bac8fec8b8a2ef4d086'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/67b5f1054197e4f5553047759c15c1d67d4c8142'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b289ebb0516526cb4abae081b7ec29fd4fa1209d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/bcbd771cd5d68c0c52567556097d75f9fc4e7cd6'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html'
    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: 0.0022
epssPercentile: 0.11662
ingestedAt: '2026-10-15T03:30:12.736Z'
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2024-09-10T16:05:54.386411Z'
---

## Overview

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

wifi: cfg80211: handle 2x996 RU allocation in cfg80211_calculate_bitrate_he()

Currently NL80211_RATE_INFO_HE_RU_ALLOC_2x996 is not handled in
cfg80211_calculate_bitrate_he(), leading to below warning:

kernel: invalid HE MCS: bw:6, ru:6
kernel: WARNING: CPU: 0 PID: 2312 at net/wireless/util.c:1501 cfg80211_calculate_bitrate_he+0x22b/0x270 [cfg80211]

Fix it by handling 2x996 RU allocation in the same way as 160 MHz bandwidth.

## Affected

- `linux_kernel >= 4.19, < 4.19.320`
- `linux_kernel >= 4.20, < 5.4.282`
- `linux_kernel >= 5.5, < 5.10.224`
- `linux_kernel >= 5.11, < 5.15.165`
- `linux_kernel >= 5.16, < 6.1.103`
- `linux_kernel >= 6.2, < 6.6.44`
- `linux_kernel >= 6.7, < 6.10.3`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.10.3`