CVE-2026-98336
Linux: wifi: mac80211: don't offload TC setup on AP_VLAN interfaces
Linux LinuxOperating systemsCVSS
NoneNot scoredExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.18%Chance of exploitation activity in the next 30 days, higher than 6% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in790221efbfece13a2347563b3785aaca48f192e2Also 40bc8a268c3b6e21fa3a8dd1b4fd85aa905b9718, 9c34f01b8f2177dd4e1ee524ca1f9ca3fcd85a11 and 1 moreCVE List
What fixes it
- 790221efbfece13a2347563b3785aaca48f192e2LinuxCVE List
- 40bc8a268c3b6e21fa3a8dd1b4fd85aa905b9718LinuxCVE List
- 9c34f01b8f2177dd4e1ee524ca1f9ca3fcd85a11LinuxCVE List
- 362bd5bce29ed0f6fd3d39a7065567777d70606eLinuxCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
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.
Text from CVE List
Affected versions 12
- Linuxaffected: 61587f1556fec39e8bafc40c8715f560639a4cf2 before 790221efbfece13a2347563b3785aaca48f192e2CVE List
- Linuxaffected: 61587f1556fec39e8bafc40c8715f560639a4cf2 before 40bc8a268c3b6e21fa3a8dd1b4fd85aa905b9718CVE List
- Linuxaffected: 61587f1556fec39e8bafc40c8715f560639a4cf2 before 9c34f01b8f2177dd4e1ee524ca1f9ca3fcd85a11CVE List
- Linuxaffected: 61587f1556fec39e8bafc40c8715f560639a4cf2 before ea3ef2165e4751df2ee3bc1c07a192243a08faa5CVE List
- Linuxaffected: 61587f1556fec39e8bafc40c8715f560639a4cf2 before 362bd5bce29ed0f6fd3d39a7065567777d70606eCVE List
- Linuxaffected: 6.4CVE List
- Linuxunaffected: all versions before 6.4CVE List
- Linuxunaffected: 6.6.158 through 6.6.*CVE List
- Linuxunaffected: 6.12.112 through 6.12.*CVE List
- Linuxunaffected: 6.18.54 through 6.18.*CVE List
- Linuxunaffected: 7.2.8 through 7.2.*CVE List
- Linuxunaffected: 7.3CVE List
References 5
- git.kernel.org/stable/c/790221efbfece13a2347563b3785aaca48f192e2Referencevia CVE List
- git.kernel.org/stable/c/40bc8a268c3b6e21fa3a8dd1b4fd85aa905b9718Referencevia CVE List
- git.kernel.org/stable/c/9c34f01b8f2177dd4e1ee524ca1f9ca3fcd85a11Referencevia CVE List
- git.kernel.org/stable/c/ea3ef2165e4751df2ee3bc1c07a192243a08faa5Referencevia CVE List
- git.kernel.org/stable/c/362bd5bce29ed0f6fd3d39a7065567777d70606eReferencevia CVE List