Linux Distros Unpatched Vulnerability : CVE-2026-89571

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - cxl/features: bound fwctl command payload to the input buffer fwctlcmdrpc copies cmd-inlen bytes into inbuf = kvzalloccmd-inlen and passes inbuf and inlen to...

CVE-2026-89571

A flaw was found in the Linux kernel's CXL Compute Express Link features. A local attacker could exploit an out-of-bounds read vulnerability in the fwctlcmdrpc and cxlctlsetfeature functions. This occurs when the system attempts to copy data with a small input buffer length but processes a larger...

CVE-2026-89571

In the Linux kernel, the following vulnerability has been resolved: cxl/features: bound fwctl command payload to the input buffer fwctlcmdrpc copies cmd-inlen bytes into inbuf = kvzalloccmd-inlen and passes inbuf and inlen to -fwrpc. The CXL callback cxlctlfwrpc ignores inlen and never checks the...

CVE-2026-89571: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: cxl/features: bound fwctl command payload to the input buffer fwctlcmdrpc copies cmd-inlen bytes into inbuf = kvzalloccmd-inlen and passes inbuf and inlen to -fwrpc. The CXL callback cxlctlfwrpc ignores inlen and never checks the...