CVE-2026-98336
Received Received - Intake

Traffic Control Offload Rejection in Linux Kernel

Publication date: 2026-10-06

Last updated on: 2026-10-06

Assigner: kernel.org

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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-10-06
Last Modified
2026-10-06
Generated
2026-10-06
AI Q&A
2026-10-06
EPSS Evaluated
N/A
NVD
CVE-2026-98336
EUVD
EUVD-2026-93321

Affected Vendors & Products

Showing 6 associated CPEs
Vendor Product Version / Range
Linux Linux 61587f1556fec39e8bafc40c8715f560639a4cf2
Linux Linux 61587f1556fec39e8bafc40c8715f560639a4cf2
Linux Linux 61587f1556fec39e8bafc40c8715f560639a4cf2
Linux Linux 61587f1556fec39e8bafc40c8715f560639a4cf2
Linux Linux 61587f1556fec39e8bafc40c8715f560639a4cf2
Linux Linux 6.4

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-UNKNOWN

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability in the Linux kernel involves a flaw in the mac80211 subsystem where Traffic Control (TC) setup is incorrectly attempted on AP_VLAN interfaces. AP_VLAN interfaces are virtual and cannot support TC offloading to drivers, leading to potential misconfiguration or failure in network traffic management.

Impact Analysis

If exploited, this vulnerability could disrupt network traffic management on systems using AP_VLAN interfaces, potentially causing performance issues or connectivity problems. However, the impact is limited since the kernel now rejects TC offloading on these interfaces, defaulting to software handling.

Mitigation Strategies

Update the Linux kernel to the latest patched version to resolve the TC offload issue on AP_VLAN interfaces. Monitor vendor advisories for kernel updates and apply them promptly.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-98336. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart