page_table_walk

Captura la Bandera en Memoria Física Has leído sobre paginación. Los diagramas tienen sentido. Cuatro niveles, 9 bits cada uno, marco de página, desplazamiento. Claro. Pero luego te encuentras con un desafío que requiere caminar realmente las tablas de páginas, y te das cuenta de que no lo sabes...

page-table-exploitation

page-table-exploitation A demonstration of how page tables can be used to run arbitrary code in ring-0 and lead to a privesc. Uses CVE-2016-7255 as an example...

Linux Distros Unpatched Vulnerability : CVE-2026-98310

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: drm/xe/shrinker: Take a runtime PM ref before shrinking non-system memory xeshrinkerwalk wal...

CVE-2026-98310

In the Linux kernel, the following vulnerability has been resolved: drm/xe/shrinker: Take a runtime PM ref before shrinking non-system memory xeshrinkerwalk walks the SYSTEM and TT LRUs without a runtime PM reference. Shrinking a bo outside system memory invalidates its GPU mappings, which needs...

DEBIAN-CVE-2026-98216

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...

CVE-2026-98216

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...

CVE-2026-98216

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...

UBUNTU-CVE-2026-98216

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...

CVE-2026-98216 IB/hfi1: Fix the PIO_CRED credit-return mmap

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...

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...

CVE-2026-98216

The Linux kernel is vulnerable to an issue within the IB/hfi1 driver during the PIO_CRED credit-return mmap operation. The root cause involves two errors in hfi1_file_mmap(): first, cr_page_offset is incorrectly treated as pointer arithmetic, causing memvirt to land outside the allocated range, w...

KVM-Januscape

KVM-XJ Hot Patch dumptool.py automatically finds offsets; how to use it? Just read the code. Vulnerability Overview CVE-2026-53359 Januscape is a use-after-free UAF vulnerability in the Linux kernel KVM shadow MMU. Lurking time : 16 years August 2010 to July 2026 Affected range : All Intel/AMD x8...

Linux Distros Unpatched Vulnerability : CVE-2026-98216

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

PT-2026-106545

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the hfi1 file mmap function within the IB/hfi1 driver regarding the PIO CRED credit-return memory mapping. The implementation contains two primary errors: first, it...

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...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: RISCV: Kernel mappings of the EFI page table must be synchronized before switching to the EFI page table. The EFI page table is initially created as a copy of the kernel page table. When VMAPSTACK is enabled, kernel stacks are...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

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. Using th...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mm: hugetlb: independent PMD page table shared count The refcount may be unexpectedly increased through functions like trygetfolio, especially by calls such as splithugepages. In hugepmdunshare, we use the refcount to check wheth...

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...

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...