CVE-2026-98336: Linux kernel · wifi: mac80211: don't offload TC setup on AP_VLAN interfaces
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 28 Oct 2026, 01:28 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
Exploitation evidence
Disclosed: evidence found.
CVE published 6 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: don't offload TC setup on AP_VLAN interfaces AP_VLAN interfaces are purely virtual, so don't try to offload TC setup to drivers. We can't really use the AP interface either since we may not know it all the time, and it could technically even change. Just reject the TC offload so things get done in software.
References
- ubuntu.com/security/CVE-2026-98336 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-98336 (opens in a new tab)
- git.kernel.org/linus/362bd5bce29ed0f6fd3d39a7065567777d70606e (opens in a new tab)
- git.kernel.org/stable/c/362bd5bce29ed0f6fd3d39a7065567777d70606e (opens in a new tab)
- git.kernel.org/stable/c/40bc8a268c3b6e21fa3a8dd1b4fd85aa905b9718 (opens in a new tab)
- git.kernel.org/stable/c/790221efbfece13a2347563b3785aaca48f192e2 (opens in a new tab)
- git.kernel.org/stable/c/9c34f01b8f2177dd4e1ee524ca1f9ca3fcd85a11 (opens in a new tab)
- git.kernel.org/stable/c/ea3ef2165e4751df2ee3bc1c07a192243a08faa5 (opens in a new tab)