112 matches found
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: In the Linux kernel KVM x86/mmu, a race allowed installing an MMIO SPTE without first zapping an existing shadow-present SPTE when guest memory writes occurred outside KVM’s scope. This could enable a guest‑memory–related fault to leave a shadow SPTE intact when an MMIO SPTE is in...
Linux kernel 安全漏洞
The Linux kernel is the kernel used by the Linux operating system developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from improper checks during the processing of shadow memory when the direct MMU overwrites the SPTE. This...
Oracle Linux 10 / 9 : Unbreakable Enterprise kernel (ELSA-2026-50170)
The remote Oracle Linux 10 / 9 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-50170 advisory. 6.12.0-200.74.27.1 - KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE Sean Christopherson Orabug: 39071315 Tenable has extract...
CVE-2026-23346
In the Linux kernel, the following vulnerability has been resolved: arm64: io: Extract user memory type in ioremapprot The only caller of ioremapprot outside of the generic ioremap implementation is genericaccessphys, which passes a 'pgprott' value determined from the user mapping of the target...
CVE-2026-23345
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...
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 setting PTESHARED in the GCS mapping when FEATLPA2 is enabled, potentially leading to kernel...
PT-2026-27710
In the Linux kernel, the following vulnerability has been resolved: arm64: gcs: Do not set PTE SHARED on GCS mappings if FEAT LPA2 is enabled When FEAT LPA2 is enabled, bits 8-9 of the PTE replace the shareability attribute with bits 50-51 of the output address. The PAGE GCS, RO definitions inclu...
PT-2026-52003
Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the powerpc architecture's page table fragment management. The system uses pt frag refcount to track page table fragments. When pte free defer is called during madvise...
The vulnerability of the can_follow_write_pte() function (mm/gup.c) and can_follow_write_pmd() function (mm/huge_memory.c) in the Linux kernel allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.
The vulnerability of the canfollowwritepte function mm/gup.c and canfollowwritepmd function mm/hugememory.c in the Linux kernel is related to improper handling of states during memory management. Exploitation of this vulnerability could allow a remote attacker to compromise the confidentiality,...
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...
Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-993080)
The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-993080 advisory. In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: fix shift-out-of-bounds in CalculateVMAndRowBytes WHY When PTEBufferSizeInReques...
EUVD-2023-60353
In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pv: fix index value of replaced ASCE The index field of the struct page corresponding to a guest ASCE should be 0. When replacing the ASCE in s390replaceasce, the index of the new ASCE should also be set to 0. Having t...
CVE-2023-54092
In Astra Linux and SUSE OSV notes, CVE-2023-54092 corresponds to a Linux kernel KVM s390 issue where the ASCE replacement could carry a non-zero index, causing incorrect addresses to be passed during PTE invalidations and potentially triggering VM crashes when a prefix is unmapped. The documented...
CVE-2023-54092 KVM: s390: pv: fix index value of replaced ASCE
In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pv: fix index value of replaced ASCE The index field of the struct page corresponding to a guest ASCE should be 0. When replacing the ASCE in s390replaceasce, the index of the new ASCE should also be set to 0. Having t...
CVE-2025-68179
In the Linux kernel, the following vulnerability has been resolved: s390: Disable ARCHWANTOPTIMIZEHUGETLBVMEMMAP As reported by Luiz Capitulino enabling HVO on s390 leads to reproducible crashes. The problem is that kernel page tables are modified without flushing corresponding TLB entries. Even ...