What is CVE-2026-64283?
CVE-2026-64283 is a vulnerability in the Linux kernel's KVM subsystem related to the guest_memfd function. Improper handling of offset and size as signed values during memslot binding can lead to false negatives, potentially allowing memory corruption in virtual machines. Updating the kernel is required to mitigate this issue.
Azərbaycanca: CVE-2026-64283 Linux kernel-in KVM (Kernel-based Virtual Machine) alt sistemində guest_memfd funksiyasında zəiflikdir. Təsirə məruz qalan virtual maşınlarda yaddaş slotlarının bağlanması zamanı offset və size dəyərlərinin işarəsiz (unsigned) kimi qəbul edilməməsi yanlış mənfi nəticəyə səbəb ola bilər. Bu problemi aradan qaldırmaq üçün kernel yenilənməlidir.
FAQ2
Which Linux kernel subsystem does CVE-2026-64283 affect?
This vulnerability affects the KVM (Kernel-based Virtual Machine) subsystem.
What values are mishandled in this vulnerability, and what can result from it?
Improper handling of offset and size as signed values during memslot binding can lead to false negatives.
See also6
This explainer is AI-written from source data — skopnix's own reporting on this CVE; CVSS scores, vendors and versions are never invented. See NVD for the official record.