Astra Linux – Vulnerability found in 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 ...

Astra Linux – Vulnerability in 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. Otherwise, a spurious fault may occur. radixsetpteat does not perform th...

Astra Linux – Vulnerability in 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...

CVE-2026-68172

A flaw was found in the Linux kernel, specifically within the hugeptepget helper function for the arm64 architecture. When this function is provided with an unaligned virtual address, it can incorrectly process Page Table Entries PTEs. This can lead to the kernel dereferencing invalid memory...

SUSE CVE-2026-64416

In the Linux kernel, the following vulnerability has been resolved: mm: swapcgroup: fix NULL deref in lookupswapcgroupid on swapless host lookupswapcgroupid passes swapcgroupctrltype.map to swapcgroupidlookup without checking that the type was ever registered via swapcgroupswapon. On a swapless...

AZL-93608 CVE-2026-64514 affecting package kernel for versions less than 6.6.145.2-1

In the Linux kernel, the following vulnerability has been resolved: userfaultfd: gate mustwait writability check on ptepresent userfaultfdmustwait and userfaultfdhugemustwait read the PTE without taking the page table lock and then apply ptewrite / hugeptewrite to it. Those accessors decode bits...

CVE-2026-64514

CVE-2026-64514 — Linux kernel (userfaultfd) details: The vulnerability concerns a gate must_wait writability check for userfaultfd on pte_present(). The kernel reads PTEs without holding the page table lock in userfaultfd_must_wait() and userfaultfd_huge_must_wait(), potentially decoding offset b...

SUSE CVE-2026-53374

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: zero-initialize GART table on allocation GART TLB is flushed after unmapping but not after mapping. Since amdgpubocreatekernel does not zero-initialize the buffer, when a single PTE is written the TLB may speculativel...

PT-2026-61267

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the try to unmap one function within the memory management subsystem. The nr pages variable is not properly initialized at the start of each loop iteration. This allow...

SUSE CVE-2026-53359

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Fix shadow paging use-after-free due to unexpected role Commit 0cb2af2ea66ad "KVM: x86: Fix shadow paging use-after-free due to unexpected GFN" fixed a shadow paging mismatch between stored and computed GFNs; the bug...

Astra Linux – Vulnerability in 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...

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...

Astra Linux – Vulnerability in 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 – Vulnerability in 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. Although it’s...

PT-2026-40693

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the arm64 architecture where the contpte ptep set access flags function incorrectly detects no-op operations by comparing a gathered ptep get value against the request...

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...

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...