What’s Vulnerable › Vulnerabilities

CVE-2026-98328: wifi: mac80211: add HE 6 GHz capability in the scan elems len

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-06 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: add HE 6 GHz capability in the scan elems len The HE 6 GHz Band Capability element is in the probe request for every band if 6 GHz is supported, so add the size to scan_ies_len. Otherwise, building probe request elements can fail, triggering the WARN_ON in __ieee80211_start_scan().

Affected products

• Linux kernel: 5.8 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/8659bd6c4c852096b6621086d1ea38eed84b454a
• https://git.kernel.org/stable/c/9d83c08dcce808c732988a5291e3ef4f59d09edb
• https://git.kernel.org/stable/c/ad5bd0f6a0c337a80c141ea8e6c7a1d9c145be79
• https://git.kernel.org/stable/c/be7bfdea1ec9b672a80c736bd6ed932e1adebef8
• https://git.kernel.org/stable/c/cd54bf333f5631d3630bab0a832e9ae648f73515
• https://git.kernel.org/stable/c/db19d5414227d86cee77a000607a6710d7f36853

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