Inconsistent EHT Capabilities in Linux Kernel Wi-Fi Driver

CVE-2026-53257

What is CVE-2026-53257?

A vulnerability in the Linux kernel related to Wi-Fi drivers can lead to system crashes due to inconsistent configuration between HE and EHT capabilities. Specifically, if the eht_cap is set without a corresponding eht_oper, it may cause the mac80211 to malfunction. To mitigate this, a fix has been implemented to ensure that both HE and EHT capabilities are consistent, thereby improving stability and functionality in wireless communications.

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