CVE-2026-46309

CVE-2026-46309 concerns the Linux kernel’s DRM-XE UAPI path. The issue arises from missing validation in xe_vm_madvise_ioctl(): it could reject PAT indices with the XE_COH_NONE coherency mode when applied to CPU cached memory. If coh_none is used with CPU cached buffers, the clear operation may s...

Linux Distros Unpatched Vulnerability : CVE-2026-46309

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - drm/xe/uapi: Reject cohnone PAT index for CPU cached memory in madvise Add validation in xevmmadviseioctl to reject PAT indices with XECOHNONE coherency mode wh...