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VulnerabilityPublished Updated

CVE-2024-35789: Linux kernel · wifi: mac80211: check/clear fast rx for non-4addr sta VLAN changes

Affects Linux kernelSource GCVE Database

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Not known to be exploited · CVSS 8.0 High · fixed in 5.4.0-1128.138~18.04.1 : patch Linux kernel soon.

Data as of 6 Nov 2026, 15:17 UTC

CVSS 3.1 base score
8.0High
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 5.4.0-1128.138~18.04.1, 5.4.0-1133.140~18.04.1, 5.4.0-1132.141~18.04.1 +62
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 17 May 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
Ubuntu 24.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=nobleOther threatsAffected
  • <6.8.0-35.35
Fixed in
  • 6.8.0-35.35
Ubuntu 24.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=nobleOther threatsAffected
  • <6.8.0-1009.9
Fixed in
  • 6.8.0-1009.9
Ubuntu 24.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=nobleOther threatsAffected
  • <6.8.0-1008.8
Fixed in
  • 6.8.0-1008.8
Ubuntu 24.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=nobleOther threatsAffected
  • <6.8.0-1008.9
Fixed in
  • 6.8.0-1008.9
Ubuntu 24.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=nobleOther threatsAffected
  • <6.8.0-1004.7
Fixed in
  • 6.8.0-1004.7
Ubuntu 24.04 LTSlinux-ibmpkg:deb/ubuntu/linux-ibm?arch=source&distro=nobleOther threatsAffected
  • <6.8.0-1006.6
Fixed in
  • 6.8.0-1006.6

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A patch is available and should be applied. Fixed versions include 5.4.0-1128.138~18.04.1 and later releases as listed. Users should upgrade to these fixed kernel versions to remediate the vulnerability. No additional mitigation steps are indicated by the vendor advisory.

Description

A use-after-free vulnerability in the Linux kernel's mac80211 WiFi subsystem was fixed. The issue occurs when moving a station out of a VLAN and deleting the VLAN, where the fast_rx entry retains a pointer to the deleted VLAN's net device, potentially causing memory corruption. This flaw has been addressed by invoking ieee80211_check_fast_rx immediately after VLAN changes.

References

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