page_table_walk

Capture the Flag in Physical Memory You've read about paging. The diagrams make sense. Four levels, 9 bits each, page frame, offset. Sure. But then you hit a challenge that requires actually walking page tables, and you realize you don't know it. You know about it. Big difference. What worked for...

CVE-2026-98216

The Linux kernel contains a vulnerability in the hfi1 driver's hfi1_file_mmap() function. The issue stems from incorrect pointer arithmetic where a byte offset is added to a struct pointer, causing memvirt to land outside the allocated memory. When an IOMMU is active, this results in remap_pfn_ra...

EUVD-2026-93144

In the Linux kernel, the following vulnerability has been resolved: IB/hfi1: Fix the PIOCRED credit-return mmap hfi1filemmap's PIOCRED case must hand user space the single credit-return page that holds this context's entry. That page is the second or third page of the per-node credit-return...

KVM-Januscape

KVM-XJ 热补丁 dumptool.py 是自动寻找偏移，怎么用就自己看代码 漏洞概述 CVE-2026-53359（Januscape）是 Linux 内核 KVM 影子 MMU 中的释放后使用（UAF）漏洞。 潜伏时间：16 年（2010年8月至2026年7月） 影响范围：所有启用嵌套虚拟化的 Intel/AMD x86 系统 危害等级：高危，VM 内 root 用户可逃逸到母鸡，获取母鸡 root 权限 利用方式：母鸡内核 panic（DoS）或完整虚拟机逃逸（无公开POC） 漏洞原理 kvmmmugetpage 函数在哈希表中查找可复用的影子页表时，仅比较了...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: s390/uv: Do not call foliowaitwriteback without a folio reference. foliowaitwriteback requires that no spinlocks are held and that a folio reference is held, as documented. After we removed the PTL, the folio object could be free...

page-table-exploitation

page-table-exploitation 演示如何利用页表在 ring-0 中运行任意代码并导致权限提升。以 CVE-2016-7255 为例。...

SUSE CVE-2026-97525

In the Linux kernel, the following vulnerability has been resolved: x86/mm/pat: Allocate split page tables as kernel page tables A PTE is allocated directly without going through the standard page table allocation routines such as ptealloconekernel when the CPA code splits a large page...

SUSE CVE-2026-97943

In the Linux kernel, the following vulnerability has been resolved: x86/mm/pat: Acquire initmm write lock on collapse to avoid UAF x86 implements page attribute modification using its Change Page Attributes CPA mechanism. This tracks properties of ranges such as cache mode through x86 page...

SUSE CVE-2026-93237

In the Linux kernel, the following vulnerability has been resolved: LoongArch: Add DIRECTMAPPHYSMEMEND definition getfreememregion and mhpgetpluggablerange bound their search to DIRECTMAPPHYSMEMEND. LoongArch does not define it, so the fallback in include/linux/mm.h applies: under...

DEBIAN-CVE-2026-97943

In the Linux kernel, the following vulnerability has been resolved: x86/mm/pat: Acquire initmm write lock on collapse to avoid UAF x86 implements page attribute modification using its Change Page Attributes CPA mechanism. This tracks properties of ranges such as cache mode through x86 page...

CVE-2026-97525

In the Linux kernel, the following vulnerability has been resolved: x86/mm/pat: Allocate split page tables as kernel page tables A PTE is allocated directly without going through the standard page table allocation routines such as ptealloconekernel when the CPA code splits a large page...

UBUNTU-CVE-2026-97533

In the Linux kernel, the following vulnerability has been resolved: x86/mm/pat: Acquire initmm read lock on attribute changes to avoid UAF A previous commit protected against races between ptdump and CPA collapse, however one still exists between attribute changes and collapse as reported by Deni...

EUVD-2026-86797

In the Linux kernel, the following vulnerability has been resolved: x86/mm/pat: Acquire initmm write lock on collapse to avoid UAF x86 implements page attribute modification using its Change Page Attributes CPA mechanism. This tracks properties of ranges such as cache mode through x86 page...

CVE-2026-97525 x86/mm/pat: Allocate split page tables as kernel page tables

In the Linux kernel, the following vulnerability has been resolved: x86/mm/pat: Allocate split page tables as kernel page tables A PTE is allocated directly without going through the standard page table allocation routines such as ptealloconekernel when the CPA code splits a large page...

CVE-2026-97525

The Linux kernel contains a vulnerability where split page tables are allocated without using standard allocation routines (like pte_alloc_one_kernel()) during large page splits (__split_large_page()). This prevents the page table constructor from being called and, critically, fails to mark the p...

PT-2026-98465

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the x86 memory management where Page Table Entries PTE are allocated directly during the splitting of a large page via the split large page function, bypassing standar...

Linux Distros Unpatched Vulnerability : CVE-2026-93237

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - LoongArch: Add DIRECTMAPPHYSMEMEND definition getfreememregion and mhpgetpluggablerange bound their search to DIRECTMAPPHYSMEMEND. LoongArch does not define it,...

Linux Distros Unpatched Vulnerability : CVE-2026-97533

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - x86/mm/pat: Acquire initmm read lock on attribute changes to avoid UAF A previous commit protected against races between ptdump and CPA collapse, however one...

CVE-2026-97943

In the Linux kernel, the following vulnerability has been resolved: x86/mm/pat: Acquire initmm write lock on collapse to avoid UAF x86 implements page attribute modification using its Change Page Attributes CPA mechanism. This tracks properties of ranges such as cache mode through x86 page...

CVE-2026-97533: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: x86/mm/pat: Acquire initmm read lock on attribute changes to avoid UAF A previous commit protected against races between ptdump and CPA collapse, however one still exists between attribute changes and collapse as reported by Deni...