SUSE CVE-2026-45894

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Clear Present bit before tearing down PASID entry The Intel VT-d Scalable Mode PASID table entry consists of 512 bits 64 bytes. When tearing down an entry, the current implementation zeros the entire 64-byte structure...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: mm: fixed a kernel bug when userfaultfdmove encounters swapcache. The userfaultfdmove function checks whether the PTE entry is present or a swap entry. If the PTE entry is present, movepresentpte handles folio migration by settin...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: arm64: gcs: Do not set PTESHARED on GCS mappings if FEATLPA2 is enabled When FEATLPA2 is enabled, bits 8-9 of the PTE replace the shareability attribute with bits 50-51 of the output address. The PAGEGCS,RO definitions include th...

Astra Linux - уязвимость в linux

In the Linux kernel, the following vulnerability has been resolved: powerpc/64s: Fixed the PTE update for kernel memory on radix. When adding a PTE, a ptesync is required to ensure that the PTE update is performed correctly before subsequent accesses. Otherwise, a spurious fault may occur...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerabilities have been resolved: powerpc/fixmap: Fixed the VM debug warning when unmapping a fixmap entry. The unmapping of a fixmap entry is performed by calling setfixmap, with FIXMAPPAGECLEAR as the flag. Currently, powerpc setfixmap calls mapkernelpage...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Only warnings are issued when overwriting a shadow-present SPTE, specifically when the operation is performed on direct MMUs. This adjustment applies only to MMUs that do not have shadowed gPTEs. While it’s impossib...

Astra Linux - уязвимость в linux-5.10, linux-6.1, linux, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Fixed the flushtlbrange function when it is used to erase 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 ...

PT-2026-40693

In the Linux kernel, the following vulnerability has been resolved: arm64: contpte: fix set access flags no-op check for SMMU/ATS faults contpte ptep set access flags compared the gathered ptep get value against the requested entry to detect no-ops. ptep get ORs AF/dirty from all sub-PTEs in the...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: mm/rmap: fix potential out-of-bounds page table access during batched unmap As pointed out by David1, the batched unmap logic in trytounmapone may read past the end of a PTE table when a large folio's PTE mappings are not fully...

Astra Linux - уязвимость в linux-5.15, linux-6.1

In the Linux kernel, the following vulnerabilities have been resolved: drivers/virt/acrn: Fixed the PFNMAP PTE checks in acrnvmrammap. The patch series “mm: Improvements to followpte and fixes for acrn followpte”. Patch 1 fixes a number of issues I identified in the acrn driver. It’s just...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Write-protecting of L2 SPTEs in TDP MMU when clearing dirty status Check kvmmmupageadneedwriteprotect when deciding whether to write-protect or clear D-bits on TDP MMU SPTEs. This ensures that the TDP MMU takes into...

CVE-2026-31600 arm64: mm: Handle invalid large leaf mappings correctly

In the Linux kernel, the following vulnerability has been resolved: arm64: mm: Handle invalid large leaf mappings correctly It has been possible for a long time to mark ptes in the linear map as invalid. This is done for secretmem, kfence, realm dma memory un/share, and others, by simply clearing...

PT-2026-34952

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description In the arm64 architecture, the kernel fails to correctly handle invalid large leaf mappings. This occurs when page table entries ptes in the linear map are marked as invalid by clearing...

CVE-2026-6386

In order to apply a particular protection key to an address range, the kernel must update the corresponding page table entries. The subroutine which handled this failed to take into account the presence of 1GB largepage mappings created using the shmcreatelargepage3 interface. In particular, it...

CVE-2026-31397

In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: fix use of NULL folio in movepageshugepmd movepageshugepmd handles UFFDIOMOVE for both normal THPs and huge zero pages. For the huge zero page path, srcfolio is explicitly set to NULL, and is used as a sentinel to...

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...

KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE

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EUVD-2026-17830

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Only WARN in direct MMUs when overwriting shadow-present SPTE Adjust KVM's sanity check against overwriting a shadow-present SPTE with a another SPTE with a different target PFN to only apply to direct MMUs, i.e. on...

CVE-2026-23401

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE When installing an emulated MMIO SPTE, do so after dropping/zapping the existing SPTE if it's shadow-present. While commit a54aa15c6bda3 was right about...

CVE-2026-23401

CVE-2026-23401 (Linux kernel KVM x86/mmu issue) : The vulnerability arises when installing an emulated MMIO SPTE in KVM without first zapping an existing shadow-present SPTE, allowing guest memory writes outside the intended scope to trigger an MMIO SPTE installation. The root cause is a sequence...