fastrpc driver

The fastrpc driver tag covers reporting on CVE-2026-53160, a use-after-free race in the Linux kernel FastRPC driver. The flaw affects the fastrpc_map_create path, where a concurrent memory-unmap operation may release a map object before a safe reference is obtained. Coverage explains that this is not a Windows kernel vulnerability, but that its listing in Microsoft’s Security Update Guide reflects the broader security scope of Linux components used in cloud, hybrid, and Qualcomm-adjacent systems. The discussion also highlights the narrow remediation: correcting locking and reference-counting behavior in the driver, along with the importance of reviewing security risks at operating-system and hardware integration boundaries.