CVE-2026-72358 drm/xe/pt: prevent invalid cursor access for purged BOs

In the Linux kernel, the following vulnerability has been resolved: drm/xe/pt: prevent invalid cursor access for purged BOs During a page table walk for binding, xeptstagebind explicitly skips initializing the xerescursor for purged BOs, treating them similarly to NULL VMAs by only setting the...

CVE-2026-72358

CVE-2026-72358 relates to the Linux kernel drm/xe/pt code, where cursor handling for purged BOs could be left uninitialized during page-table walks in xe_pt_hugepte_possible() and xe_pt_scan_64K(), leading to invalid cursor accesses and warnings. The fix adds an explicit purged-BO check (like NUL...