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...

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-2026-98505

In the Linux kernel, the following vulnerability has been resolved: mm/damon/vaddr: avoid hw-driven pte updates during damonhugetlbmkold damonhugetlbmkold reads the page table entry into a local variable, unsets the accessed bit in the variable, and updates the page table entry with the updated...

PT-2026-116724

In the Linux kernel, the following vulnerability has been resolved: mm/damon/vaddr: avoid hw-driven pte updates during damon hugetlb mkold damon hugetlb mkold reads the page table entry into a local variable, unsets the accessed bit in the variable, and updates the page table entry with the updat...

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...

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...

ALPINE-CVE-2026-79609

XPTI Xen Page Table Isolation was introduced to mitigate Meltdown CVE-2017-5754, one aspect of XSA-254. This involves copying 64-bit PV guest page table entries from guest-chosen root page tables to the Xen- chosen one which is in actual use by hardware. To read the guest root page table, the...

CVE-2026-79609

XPTI Xen Page Table Isolation was introduced to mitigate Meltdown CVE-2017-5754, one aspect of XSA-254. This involves copying 64-bit PV guest page table entries from guest-chosen root page tables to the Xen- chosen one which is in actual use by hardware. To read the guest root page table, the...

CVE-2026-79609

XPTI Xen Page Table Isolation was introduced to mitigate Meltdown CVE-2017-5754, one aspect of XSA-254. This involves copying 64-bit PV guest page table entries from guest-chosen root page tables to the Xen- chosen one which is in actual use by hardware. To read the guest root page table, the...

EUVD-2026-98825

XPTI Xen Page Table Isolation was introduced to mitigate Meltdown CVE-2017-5754, one aspect of XSA-254. This involves copying 64-bit PV guest page table entries from guest-chosen root page tables to the Xen- chosen one which is in actual use by hardware. To read the guest root page table, the...

CVE-2026-79609: Undefined Security Weakness

XPTI Xen Page Table Isolation was introduced to mitigate Meltdown CVE-2017-5754, one aspect of XSA-254. This involves copying 64-bit PV guest page table entries from guest-chosen root page tables to the Xen- chosen one which is in actual use by hardware. To read the guest root page table, the...

PT-2026-111665

Name of the Vulnerable Software and Affected Versions xen versions prior to 4.22.0 06-1.1 Description Xen Page Table Isolation XPTI is used to mitigate Meltdown by copying 64-bit PV guest page table entries from guest-chosen root page tables to the Xen-chosen one used by hardware. The directmap i...

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...

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

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...

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...