CVE-2026-68194

The CVE-2026-68194 issue affects Linux kernel wifi driver stack mt76/mt7921: TXRX_NOTIFY is an mmio-only event but was dispatched on non-mmio buses (USB/SDIO) via mt7921_rx_check()/mt7921_queue_rx_skb(), causing a NULL pointer dereference in mt7921_mac_tx_free() when mt76_queue_tx_cleanup() calls...

EUVD-2026-55295

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7921: drop TXRXNOTIFY on non-mmio buses PKTTYPETXRXNOTIFY is an mmio-only event, but mt7921rxcheck and mt7921queuerxskb dispatch it to mt7921mactxfree on every bus. mt7921mactxfree cleans the DMA tx queues with...

CVE-2026-53317

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7921: Place upper limit on station AID Any station configured with an AID over 20 causes a firmware crash. This situation occurred in our testing using an AP interface on 7922 hardware, with a modified hostapd,...

DEBIAN-CVE-2023-53785

In the Linux kernel, the following vulnerability has been resolved: mt76: mt7921: don't assume adequate headroom for SDIO headers mt7921usbsdiotxprepareskb calls mt7921usbsdiowritetxwi and mt7921skbaddusbsdiohdr, both of which blindly assume that adequate headroom will be available in the passed...

UBUNTU-CVE-2023-53785

In the Linux kernel, the following vulnerability has been resolved: mt76: mt7921: don't assume adequate headroom for SDIO headers mt7921usbsdiotxprepareskb calls mt7921usbsdiowritetxwi and mt7921skbaddusbsdiohdr, both of which blindly assume that adequate headroom will be available in the passed...

CVE-2022-49476

CVE-2022-49476 concerns the Linux kernel issue where mt76/mt7921 kept calling mt7921_irq_handler during devm_free_irq, risking a NULL pointer dereference in mt7921_pci_remove. The provided logs show a kernel crash (NULL pointer dereference) during device removal. The associated fix postpones free...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a premature release of the mt76 device in mt7921pciremove, which causes the kernel to crash...

PT-2025-49645

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw within the mt76 and mt7921 components related to SDIO header handling. Specifically, the mt7921 usb sdio tx prepare skb function does not adequately ensu...

PT-2024-11127 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to a kernel crash that occurs when the firmware for the mt7921 device fails to download or is missing. This results in a fatal exception and the kernel stopping...