CVE-2026-74632

CVE-2026-74632 is a race condition in the Linux kernel's mm/huge_memory subsystem affecting the reference-counted huge_zero_folio implementation. When a memory shrinker (shrink_huge_zero_folio_scan()) is preempted between zeroing huge_zero_refcount and writing the ~0UL sentinel to huge_zero_pfn, ...

PT-2026-79637

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the reference-counted huge zero folio implementation. A race can occur between a shrinker decrementing the reference count to zero in the shrink huge zero foli...