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 not properly updating the A/D bits of the guest PTE, which could result in accessing the wrong PFN...

SUSE CVE-2025-21696

In the Linux kernel, the following vulnerability has been resolved: mm: clear uffd-wp PTE/PMD state on mremap When mremaping a memory region previously registered with userfaultfd as write-protected but without UFFDFEATUREEVENTREMAP, an inconsistency in flag clearing leads to a mismatch between t...

UBUNTU-CVE-2025-21696

In the Linux kernel, the following vulnerability has been resolved: mm: clear uffd-wp PTE/PMD state on mremap When mremaping a memory region previously registered with userfaultfd as write-protected but without UFFDFEATUREEVENTREMAP, an inconsistency in flag clearing leads to a mismatch between t...

CVE-2025-21696 mm: clear uffd-wp PTE/PMD state on mremap()

In the Linux kernel, the following vulnerability has been resolved: mm: clear uffd-wp PTE/PMD state on mremap When mremaping a memory region previously registered with userfaultfd as write-protected but without UFFDFEATUREEVENTREMAP, an inconsistency in flag clearing leads to a mismatch between t...

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 not clearing the uffd-wp PTE/PMD state during the mremap operation. An attacker exploiting this vulnerabilit...

CVE-2023-20582

Improper handling of invalid nested page table entries in the IOMMU may allow a privileged attacker to induce page table entry PTE faults to bypass RMP checks in SEV-SNP, potentially leading to a loss of guest memory integrity...

CVE-2023-20582

Improper handling of invalid nested page table entries in the IOMMU may allow a privileged attacker to induce page table entry PTE faults to bypass RMP checks in SEV-SNP, potentially leading to a loss of guest memory integrity...

CVE-2023-20582

Improper handling of invalid nested page table entries in the IOMMU may allow a privileged attacker to induce page table entry PTE faults to bypass RMP checks in SEV-SNP, potentially leading to a loss of guest memory integrity...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mm/pagetablecheck: A crash occurred when checking ZONEDEVICE. Not all pages apply to the pgtable check. An example is ZONEDEVICE pages: they directly map PFNs, and they never allocate pageext, even if there’s a struct page around...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mm: Avoid leaving partial pfn mappings in error cases. As Jann points out, PFN mappings are special. Unlike normal memory mappings, there is no lifetime information associated with the mapping—it’s simply a raw mapping of PFNs,...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: drm/i915/dpt: Makes the DPT object unshrinkable. In some scenarios, the DPT object is shrunk, but the actual framebuffer does not undergo any shrinkage. As a result, the DPT object remains in the DPT’s vm-boundlist. Then, an...

CVE-2024-33027

Memory corruption can occur when arbitrary user-space app gains kernel level privilege to modify DDR memory by corrupting the GPU page table...

The vulnerability of the radix__set_pte_at() function in the arch/powerpc/include/asm/book3s/64/radix.h file of the Linux operating system’s kernel allows a malicious actor to cause a service failure.

The vulnerability of the radixsetpteat function in the arch/powerpc/include/asm/book3s/64/radix.h component of the Linux operating system’s kernel involves an uncontrolled consumption of resources. Exploiting this vulnerability could allow a attacker to cause a service failure...

SUSE CVE-2024-57883

In the Linux kernel, the following vulnerability has been resolved: mm: hugetlb: independent PMD page table shared count The folio refcount may be increased unexpectly through trygetfolio by caller such as splithugepages. In hugepmdunshare, we use refcount to check whether a pmd page table is...

CVE-2024-57883

In the Linux kernel, the following vulnerability has been resolved: mm: hugetlb: independent PMD page table shared count The folio refcount may be increased unexpectly through trygetfolio by caller such as splithugepages. In hugepmdunshare, we use refcount to check whether a pmd page table is...

DEBIAN-CVE-2024-57883

In the Linux kernel, the following vulnerability has been resolved: mm: hugetlb: independent PMD page table shared count The folio refcount may be increased unexpectly through trygetfolio by caller such as splithugepages. In hugepmdunshare, we use refcount to check whether a pmd page table is...

CVE-2024-57883

In the Linux kernel, the following vulnerability has been resolved: mm: hugetlb: independent PMD page table shared count The folio refcount may be increased unexpectly through trygetfolio by caller such as splithugepages. In hugepmdunshare, we use refcount to check whether a pmd page table is...

UBUNTU-CVE-2024-57883

In the Linux kernel, the following vulnerability has been resolved: mm: hugetlb: independent PMD page table shared count The folio refcount may be increased unexpectly through trygetfolio by caller such as splithugepages. In hugepmdunshare, we use refcount to check whether a pmd page table is...

CVE-2024-57883 mm: hugetlb: independent PMD page table shared count

In the Linux kernel, the following vulnerability has been resolved: mm: hugetlb: independent PMD page table shared count The folio refcount may be increased unexpectly through trygetfolio by caller such as splithugepages. In hugepmdunshare, we use refcount to check whether a pmd page table is...

CVE-2024-57883 mm: hugetlb: independent PMD page table shared count

In the Linux kernel, the following vulnerability has been resolved: mm: hugetlb: independent PMD page table shared count The folio refcount may be increased unexpectly through trygetfolio by caller such as splithugepages. In hugepmdunshare, we use refcount to check whether a pmd page table is...