OESA-2025-1448 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: mm/khugepaged: fix -anonvma race If an -anonvma is attached to the VMA, collapseandfreepmd requires it to be locked. Page table traversal is allowed under any on...

CVE-2025-22045 x86/mm: Fix flush_tlb_range() when used for zapping normal PMDs

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Fix flushtlbrange when used for zapping normal PMDs On the following path, flushtlbrange can be used for zapping normal PMD entries PMD entries that point to page tables together with the PTE entries in the pointed-to pag...

CVE-2025-22045

The connected Astra Linux entry reproduces CVE-2025-22045 and provides a concrete technical detail: the Linux kernel x86 flush_tlb_range() path could zap normal PMD entries ( pointing to page tables ) together with PTEs, via collapse_pte_mapped_thp → pmdp_collapse_flush → flush_tlb_range. The fix...

DEBIAN-CVE-2023-52935

In the Linux kernel, the following vulnerability has been resolved: mm/khugepaged: fix -anonvma race If an -anonvma is attached to the VMA, collapseandfreepmd requires it to be locked. Page table traversal is allowed under any one of the mmap lock, the anonvma lock if the VMA is associated with a...