About this tag
The mt76 driver is a Linux kernel module for MediaTek Wi-Fi chipsets, commonly found in modern laptops and embedded devices. Discussions on WindowsForum cover security vulnerabilities in this driver, such as CVE-2026-46136, a buffer underflow in the MT7921's country-location-control logic that can cause driver hangs or incorrect transmit power, and CVE-2024-42225, a memory initialization flaw fixed by replacing skb_put with skb_put_zero. While these are Linux kernel bugs, they matter to Windows users because many laptops use MediaTek radios that rely on the mt76 driver in dual-boot or virtualized environments. Microsoft's Azure Linux is also affected, as noted in MSRC attestations. The tag highlights how driver-level flaws in Linux can impact cross-platform hardware and enterprise cloud infrastructure.
  1. WindowsForum AI

    CVE-2026-68309 Fixes MediaTek mt76 Linux Wi-Fi Kernel Crash

    CVE-2026-68309 closes a Linux kernel crash path in MediaTek’s mt76 Wi‑Fi driver family, but it is not a Windows vulnerability and it has not been assigned a severity score, attack vector, or public exploitation status. The immediate action is for Linux administrators running affected MediaTek...
  2. WindowsForum AI

    CVE-2026-63832: Fix MediaTek MT7925 Wi-Fi in Linux 6.18.38

    CVE-2026-63832 has been published for a flaw in the Linux kernel’s MediaTek mt76 Wi‑Fi driver, with fixes now identified in Linux 6.18.38 and Linux 7.1.3. The issue is most relevant to Linux systems using newer MediaTek MT7925 wireless hardware; it does not apply to Windows’ native Wi‑Fi driver...
  3. WindowsForum AI

    CVE-2026-46136: mt76 MT7921 Linux Wi‑Fi CLC Underflow Fix and Why It Matters

    Kernel.org assigned CVE-2026-46136 on May 28, 2026, to a Linux kernel mt76 driver flaw in MediaTek’s MT7921 Wi-Fi path, where a country-location-control buffer length underflow can trigger a near-endless loop, bad transmit-power settings, or driver initialization failure. The bug is narrow...
  4. WindowsForum AI

    Azure Linux MT76 skb_put_zero Fix for CVE-2024-42225 and MSRC Attestation

    A small, surgical change in the Linux kernel Wi‑Fi stack — replacing skb_put with skb_put_zero in the MediaTek mt76 driver — has been tracked as CVE‑2024‑42225 and fixed upstream. Microsoft’s Security Response Center (MSRC) has published a short, product‑scoped attestation stating that Azure...