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...

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...