CVE-2026-68102

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An aperture mapping leak occurs in the amdgpu driver. The amdgpu pci remove() function calls drm dev unplug() before the driver fini routines, causing drm dev enter() in amdgpu ttm fini() to always return false. Consequently, iounmap(aper base kaddr) is not executed during normal driver unload, leaving an orphaned entry in the x86 PAT interval tree. On connected to cpu hardware, this creates a conflict between write-back (WB) and write-combining (WC) mappings during reload, leading to ioremap errors and discovery failure.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.