CVE-2024-46838

CVE-2024-46838 affects the Linux kernel. The issue arises in userfaultfd when khugepaged yanks a page table, where previous BUG_ON() checks were incorrect after allowing retracting page tables in file mappings without the mmap lock. The fix removes these BUG_ON()s (and associated early block) to ...

kernel: x86/mm/pat: fix VM_PAT handling in COW mappings

CVE-2024-35877 pertains to a flaw in the Linux kernel's handling of Page Attribute Table PAT settings during Copy-On-Write COW operations. When a write operation triggers a COW event, the kernel may replace the original page table entries PTEs with anonymous folios. This replacement disrupts the...

kernel: powerpc/fixmap: Fix VM debug warning on unmap

In the Linux kernel, the following vulnerability has been resolved: powerpc/fixmap: Fix VM debug warning on unmap Unmapping a fixmap entry is done by calling setfixmap with FIXMAPPAGECLEAR as flags. Today, powerpc setfixmap calls mapkernelpage. mapkernelpage is not happy when called a second time...

kernel: x86/mm/pat: fix VM_PAT handling in COW mappings

CVE-2024-35877 pertains to a flaw in the Linux kernel's handling of Page Attribute Table PAT settings during Copy-On-Write COW operations. When a write operation triggers a COW event, the kernel may replace the original page table entries PTEs with anonymous folios. This replacement disrupts the...

CVE-2024-46787 userfaultfd: fix checks for huge PMDs

In the Linux kernel, the following vulnerability has been resolved: userfaultfd: fix checks for huge PMDs Patch series "userfaultfd: fix races around pmdtranshuge check", v2. The pmdtranshuge code in mfillatomic is wrong in three different ways depending on kernel version: 1. The pmdtranshuge che...

Unspecified vulnerability in Linux kernel (CNVD-2024-39467)

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 a page table locking issue in the mm/hugetlb component. No details of the vulnerability are provided at this...

SUSE CVE-2024-45024

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix hugetlb vs. core-mm PT locking We recently made GUP's common page table walking code to also walk hugetlb VMAs without most hugetlb special-casing, preparing for the future of having less hugetlb-specific page tab...

CVE-2024-45024

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix hugetlb vs. core-mm PT locking We recently made GUP's common page table walking code to also walk hugetlb VMAs without most hugetlb special-casing, preparing for the future of having less hugetlb-specific page tab...

CVE-2024-45024

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix hugetlb vs. core-mm PT locking We recently made GUP's common page table walking code to also walk hugetlb VMAs without most hugetlb special-casing, preparing for the future of having less hugetlb-specific page tab...

DEBIAN-CVE-2024-45024

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix hugetlb vs. core-mm PT locking We recently made GUP's common page table walking code to also walk hugetlb VMAs without most hugetlb special-casing, preparing for the future of having less hugetlb-specific page tab...

UBUNTU-CVE-2024-45024

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix hugetlb vs. core-mm PT locking We recently made GUP's common page table walking code to also walk hugetlb VMAs without most hugetlb special-casing, preparing for the future of having less hugetlb-specific page tab...

CVE-2024-45024 mm/hugetlb: fix hugetlb vs. core-mm PT locking

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix hugetlb vs. core-mm PT locking We recently made GUP's common page table walking code to also walk hugetlb VMAs without most hugetlb special-casing, preparing for the future of having less hugetlb-specific page tab...

CVE-2024-45024

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix hugetlb vs. core-mm PT locking We recently made GUP's common page table walking code to also walk hugetlb VMAs without most hugetlb special-casing, preparing for the future of having less hugetlb-specific page tab...

CVE-2024-45024 mm/hugetlb: fix hugetlb vs. core-mm PT locking

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix hugetlb vs. core-mm PT locking We recently made GUP's common page table walking code to also walk hugetlb VMAs without most hugetlb special-casing, preparing for the future of having less hugetlb-specific page tab...

CVE-2024-45024

CVE-2024-45024 relates to a Linux kernel Hugetlb PT locking issue fixed by aligning huge page table locking with core-mm PT walkers. The root cause: during GUP’s shared page-table walking, hugetlb folios spanning multiple PTEs could be locked using PTE table locks (pte_offset_map_lock) while core...

CVE-2024-45024 mm/hugetlb: fix hugetlb vs. core-mm PT locking

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix hugetlb vs. core-mm PT locking We recently made GUP's common page table walking code to also walk hugetlb VMAs without most hugetlb special-casing, preparing for the future of having less hugetlb-specific page tab...

KVM: x86/mmu: Write-protect L2 SPTEs in TDP MMU when clearing dirty status

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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 a page table locking issue in the mm/hugetlb component. No details of the vulnerability are provided at this...

CVE-2024-45448

Page table protection configuration vulnerability in the trusted firmware module Impact: Successful exploitation of this vulnerability may affect service confidentiality...

CVE-2024-45448

The CVE-2024-45448 entry concerns a page table protection configuration vulnerability in the Trusted Firmware Module . The common description across sources states that exploitation may affect service confidentiality . Connected documents indicate limited publicly available technical detail: ther...