Linux kernel module Heap Buffer Overflow DoS

The vulnerability of the drivers/gpu/drm/xe/xehmm.c component of the Linux operating system’s kernel is related to errors during thread blocking. Exploiting this vulnerability can allow an attacker to cause a service failure...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: drm/xe/hmm: Do not dereference struct page pointers without holding the notifier lock. The pnfs that we obtain from hmmrangefault point to pages that we do not own. The guarantee that these pages are still in the CPU page tabl...

Linux kernel Heap Buffer Overflow DoS

The vulnerability of the hmmrangefault function in the drivers/gpu/drm/xe/xehmm.c kernel module of the Linux operating system is related to improper resource locking. Exploiting this vulnerability could allow an attacker to cause a service failure...

CVE-2025-21939: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: drm/xe/hmm: Don't dereference struct page pointers without notifier lock The pnfs that we obtain from hmmrangefault point to pages that we don't have a reference on, and the guarantee that they are still in the cpu page-tables is...