---
id: CVE-2024-26779
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: mac80211: fix race condition on enabling fast-xmit

  fast-xmit must only be enabled after the sta has been uploaded to the driver,
  otherwise it could end up passin…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: mac80211: fix race condition on enabling fast-xmit

  fast-xmit must only be enabled after the sta has been uploaded to the driver,
  otherwise it could end up passin…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-362
vendor: linux
product: linux_kernel
affected:
  - linux_kernel < 4.19.308
  - 'linux_kernel >= 4.20, < 5.4.270'
  - 'linux_kernel >= 5.5, < 5.10.211'
  - 'linux_kernel >= 5.11, < 5.15.150'
  - 'linux_kernel >= 5.16, < 6.1.80'
  - 'linux_kernel >= 6.2, < 6.6.19'
  - 'linux_kernel >= 6.7, < 6.7.7'
  - linux_kernel = 6.8
  - debian_linux = 10.0
patched:
  - linux_kernel 6.7.7
published: '2024-04-03'
updated: '2026-08-04'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2024-26779'
references:
  - url: 'https://git.kernel.org/stable/c/281280276b70c822f55ce15b661f6d1d3228aaa9'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/54b79d8786964e2f840e8a2ec4a9f9a50f3d4954'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/5ffab99e070b9f8ae0cf60c3c3602b84eee818dd'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/76fad1174a0cae6fc857b9f88b261a2e4f07d587'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/85720b69aef177318f4a18efbcc4302228a340e5'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/88c18fd06608b3adee547102505d715f21075c9d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/bcbc84af1183c8cf3d1ca9b78540c2185cd85e7f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/eb39bb548bf974acad7bd6780fe11f9e6652d696'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/281280276b70c822f55ce15b661f6d1d3228aaa9'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/54b79d8786964e2f840e8a2ec4a9f9a50f3d4954'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/5ffab99e070b9f8ae0cf60c3c3602b84eee818dd'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/76fad1174a0cae6fc857b9f88b261a2e4f07d587'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/85720b69aef177318f4a18efbcc4302228a340e5'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/88c18fd06608b3adee547102505d715f21075c9d'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/bcbc84af1183c8cf3d1ca9b78540c2185cd85e7f'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/eb39bb548bf974acad7bd6780fe11f9e6652d696'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.00279
epssPercentile: 0.18189
ingestedAt: '2026-08-05T10:46:48.881Z'
---

## Overview

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

wifi: mac80211: fix race condition on enabling fast-xmit

fast-xmit must only be enabled after the sta has been uploaded to the driver,
otherwise it could end up passing the not-yet-uploaded sta via drv_tx calls
to the driver, leading to potential crashes because of uninitialized drv_priv
data.
Add a missing sta->uploaded check and re-check fast xmit after inserting a sta.

## Affected

- `linux_kernel < 4.19.308`
- `linux_kernel >= 4.20, < 5.4.270`
- `linux_kernel >= 5.5, < 5.10.211`
- `linux_kernel >= 5.11, < 5.15.150`
- `linux_kernel >= 5.16, < 6.1.80`
- `linux_kernel >= 6.2, < 6.6.19`
- `linux_kernel >= 6.7, < 6.7.7`
- `linux_kernel = 6.8`
- `debian_linux = 10.0`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.7.7`