CVE-2026-53155

CVE-2026-53155 : In the Linux kernel, the issue lies in mm/huge_memory where device-private PMD entries were assigned incorrect flags due to the migration logic, causing misinterpretation of softdirty, writable, and uffd-wp states. The function set_pmd_migration_entry() used pmd_write(), pmd_soft...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mm/rmap: fixed incorrect pte restoration for lazyfree folios We batch unmap anonymous lazyfree folios using foliounmapptebatch. If the batch contains both writable and non-writable bits, we might end up making the entire batch...

Linux Distros Unpatched Vulnerability : CVE-2026-31398

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - mm/rmap: fix incorrect pte restoration for lazyfree folios We batch unmap anonymous lazyfree folios by foliounmapptebatch. If the batch has a mix of writable a...

SUSE CVE-2026-31398

In the Linux kernel, the following vulnerability has been resolved: mm/rmap: fix incorrect pte restoration for lazyfree folios We batch unmap anonymous lazyfree folios by foliounmapptebatch. If the batch has a mix of writable and non-writable bits, we may end up setting the entire batch writable...

EUVD-2026-18778

In the Linux kernel, the following vulnerability has been resolved: mm/rmap: fix incorrect pte restoration for lazyfree folios We batch unmap anonymous lazyfree folios by foliounmapptebatch. If the batch has a mix of writable and non-writable bits, we may end up setting the entire batch writable...

CVE-2026-31398

In the Linux kernel, the following vulnerability has been resolved: mm/rmap: fix incorrect pte restoration for lazyfree folios We batch unmap anonymous lazyfree folios by foliounmapptebatch. If the batch has a mix of writable and non-writable bits, we may end up setting the entire batch writable...

UBUNTU-CVE-2026-31398

In the Linux kernel, the following vulnerability has been resolved: mm/rmap: fix incorrect pte restoration for lazyfree folios We batch unmap anonymous lazyfree folios by foliounmapptebatch. If the batch has a mix of writable and non-writable bits, we may end up setting the entire batch writable...

CVE-2026-31398

In the Linux kernel, the following vulnerability has been resolved: mm/rmap: fix incorrect pte restoration for lazyfree folios We batch unmap anonymous lazyfree folios by foliounmapptebatch. If the batch has a mix of writable and non-writable bits, we may end up setting the entire batch writable...

CVE-2026-31398 mm/rmap: fix incorrect pte restoration for lazyfree folios

In the Linux kernel, the following vulnerability has been resolved: mm/rmap: fix incorrect pte restoration for lazyfree folios We batch unmap anonymous lazyfree folios by foliounmapptebatch. If the batch has a mix of writable and non-writable bits, we may end up setting the entire batch writable...

CVE-2026-31398

Summary (CVE-2026-31398) : A Linux kernel MMU issue in the rmap code affects lazyfree folios during batch unmapping. When a folio’s pages have a mix of writable and non-writable PTEs, the batch restoration path could mark the entire batch writable, breaking CoW semantics and potentially causing a...

PT-2026-30180

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contained an issue within the mm/huge memory component, specifically in the move pages huge pmd function. This function incorrectly handled NULL folios when processing...

PT-2026-30181

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.0.0-rc1-00116-g018018a17770 Description A flaw was discovered in the Linux kernel's mm/rmap subsystem related to the restoration of page table entries PTEs for lazyfree folios. Specifically, when batch unmappin...