Linux Kernel Vulnerability in MT76 Driver Affecting Wireless Communication

CVE-2025-39862

What is CVE-2025-39862?

A vulnerability exists within the Linux kernel's MT76 driver, specifically related to the MT7915 wireless chipset. Upon hardware restart, the lists that hold wireless client identifiers (WCIDs) risk becoming corrupted unless cleared beforehand. This flaw necessitates that all WCID lists are reset before invoking the ieee80211_restart_hw function, ensuring that each WCID entry is properly initialized. Neglecting this precaution could lead to unauthorized or faulty wireless connections, compromising network integrity and performance.

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