Linux Distros Unpatched Vulnerability : CVE-2026-80975

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - mfd: qnap-mcu: keep the reply buffer alive past a command timeout qnapmcuexec publishes an on-stack buffer to the receive path: unsigned char...

CVE-2026-80975

A flaw was found in the Linux kernel's qnap-mcu driver. This vulnerability occurs when the driver processes commands and a reply from the Microcontroller Unit MCU arrives after a command has timed out or failed. The driver may write this late or unsolicited message into a memory area that is no...

DEBIAN-CVE-2026-80975

In the Linux kernel, the following vulnerability has been resolved: mfd: qnap-mcu: keep the reply buffer alive past a command timeout qnapmcuexec publishes an on-stack buffer to the receive path: unsigned char rxQNAPMCURXBUFFERSIZE; ... reply-data = rx; reply-length = length; and qnapmcureceivebu...

CVE-2026-80975

In the Linux kernel, the following vulnerability has been resolved: mfd: qnap-mcu: keep the reply buffer alive past a command timeout qnapmcuexec publishes an on-stack buffer to the receive path: unsigned char rxQNAPMCURXBUFFERSIZE; ... reply-data = rx; reply-length = length; and qnapmcureceivebu...

CVE-2026-80975

In the Linux kernel, the following vulnerability has been resolved: mfd: qnap-mcu: keep the reply buffer alive past a command timeout qnapmcuexec publishes an on-stack buffer to the receive path: unsigned char rxQNAPMCURXBUFFERSIZE; ... reply-data = rx; reply-length = length; and qnapmcureceivebu...

CVE-2026-80975 mfd: qnap-mcu: keep the reply buffer alive past a command timeout

In the Linux kernel, the following vulnerability has been resolved: mfd: qnap-mcu: keep the reply buffer alive past a command timeout qnapmcuexec publishes an on-stack buffer to the receive path: unsigned char rxQNAPMCURXBUFFERSIZE; ... reply-data = rx; reply-length = length; and qnapmcureceivebu...

CVE-2026-80975 mfd: qnap-mcu: keep the reply buffer alive past a command timeout

In the Linux kernel, the following vulnerability has been resolved: mfd: qnap-mcu: keep the reply buffer alive past a command timeout qnapmcuexec publishes an on-stack buffer to the receive path: unsigned char rxQNAPMCURXBUFFERSIZE; ... reply-data = rx; reply-length = length; and qnapmcureceivebu...

EUVD-2026-76298

In the Linux kernel, the following vulnerability has been resolved: mfd: qnap-mcu: keep the reply buffer alive past a command timeout qnapmcuexec publishes an on-stack buffer to the receive path: unsigned char rxQNAPMCURXBUFFERSIZE; ... reply-data = rx; reply-length = length; and qnapmcureceivebu...

CVE-2026-80975

CVE-2026-80975 is a use-after-free vulnerability in the Linux kernel's qnap-mcu MFD driver. When a command times out or a write fails, qnap_mcu_exec() returns while reply->data still points to its own stack frame. A late MCU reply or unsolicited message written by the serdev receive path then ...

PT-2026-90105

In the Linux kernel, the following vulnerability has been resolved: mfd: qnap-mcu: keep the reply buffer alive past a command timeout qnap mcu exec publishes an on-stack buffer to the receive path: unsigned char rxQNAP MCU RX BUFFER SIZE; ... reply-data = rx; reply-length = length; and qnap mcu...