SUSE CVE-2026-53155

In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: use correct flags for device private PMD entry Commit 65edfda6f3f2 "mm/rmap: extend rmap and migration support device-private entries" updated setpmdmigrationentry to use pmdphugegetandclear in the softleaf case, b...

CVE-2026-53189

In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: update file PMD counter before folioput splithugepmdlocked updates the file/shmem RSS counter after dropping the PMD mapping's folio reference. If folioput drops the last reference, mmcounterfile can later read fre...

CVE-2026-53189

CVE-2026-53189 affects the Linux kernel memory management for huge pages (mm/huge_memory). The vulnerability arises from the order of operations when splitting a huge PMD: the RSS/file counters are updated after releasing the folio reference, which can let freed folio state be observed by mm_coun...

EUVD-2026-39246

In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: use correct flags for device private PMD entry Commit 65edfda6f3f2 "mm/rmap: extend rmap and migration support device-private entries" updated setpmdmigrationentry to use pmdphugegetandclear in the softleaf case, b...

PT-2026-52251

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the memory management subsystem where the set pmd migration entry function incorrectly uses pmd write, pmd soft dirty, and pmd uffd wp to determine the state of...

CVE-2026-53108 powerpc/64s: Fix unmap race with PMD migration entries

In the Linux kernel, the following vulnerability has been resolved: powerpc/64s: Fix unmap race with PMD migration entries The following race is possible with migration swap entries or device-private THP entries. e.g. when movepages is called on a PMD THP page, then there maybe an intermediate...

PT-2026-52002

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the Linux kernel for powerpc/64s architectures during the unmapping of Page Middle Directory PMD migration entries. The issue occurs when a move pages system...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mm/rmap: Fixed potential out-of-bounds access to the page table during batched unmap operations. As pointed out by David1, the batched unmap logic in trytounmapone may read past the end of a PTE table when the PTE mappings of a...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the competition between the splitting of PUD entries and the concurrent reassembly process in the...

PT-2026-34361

In the Linux kernel, the following vulnerability has been resolved: mm/pagewalk: fix race between concurrent split and refault The splitting of a PUD entry in walk pud range can race with a concurrent thread refaulting the PUD leaf entry causing it to try walking a PMD range that has disappeared...

CVE-2026-23100

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix hugetlbpmdshared Patch series "mm/hugetlb: fixes for PMD table sharing incl. using mmugather", v3. One functional fix, one performance regression fix, and two related comment fixes. I cleaned up my prototype I...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Fixed the flushtlbrange function when it is used to zap normal PMD entries PMD entries that point to page tables, along with the PTE entries in the pointed-to page table. In the arm64 version of flushtlbrange, there is a...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-000545)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000545 advisory. The Linux Kernel versions 2.6.38 through 4.14 have a problematic use of pmdmkdirty in the touchpmd function inside the THP implementation. touchpmd can be reached by...

kernel: 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-2023-53361

CVE-2023-53361 affects the Linux kernel on LoongArch where pmd_leaf() was not defined, causing a panic in ksm06 during LTP tests (Huge page pmd to pte_present). The issue is resolved by adding LoongArch-specific p?d_leaf() definitions (as per commits referenced in the CVE description). The connec...

UBUNTU-CVE-2025-39775

In the Linux kernel, the following vulnerability has been resolved: mm/mremap: fix WARN with uffd that has remap events disabled Registering userfaultd on a VMA that spans at least one PMD and then mremap'ing that VMA can trigger a WARN when recovering from a failed page table move due to a page...

LoongArch: Set hugetlb mmap base address aligned with pmd size

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Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from improper handling of migrated PMD entries, which could lead to a crash...

mm/huge_memory: fix dereferencing invalid pmd migration entry

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UBUNTU-CVE-2025-37958

In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: fix dereferencing invalid pmd migration entry When migrating a THP, concurrent access to the PMD migration entry during a deferred split scan can lead to an invalid address access, as illustrated below. To prevent...