Improper Input Validation in Linux Kernel's mac80211 Wi-Fi Driver

CVE-2023-53257

What is CVE-2023-53257?

A vulnerability has been identified within the Wi-Fi driver interface of the Linux kernel involving improper input validation when handling S1G action frames. Specifically, the mac80211 subsystem fails to verify the frame's action code before checking its size. This oversight could potentially allow an attacker to exploit the unvalidated action frame, leading to undefined behavior or system instability. Appropriate checks need to be implemented to ensure the integrity and security of action frames processed by the Wi-Fi driver.

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