DEBIAN-CVE-2026-32738

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and below, a crafted 792-byte HEIF sequence file with samplesperchunk=0 in the stsc box causes an unsigned integer underflow in the Chunk constructor mlastsample = 0 + 0 - 1 = UINT32MAX, mapping all samples to an empty...

PT-2025-49425

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the virtio-net component of the Linux kernel related to the handling of received packet lengths in large packets. A change introduced by commit 4959aebba8c0 altered how...

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 Linux kernel that stems from improper receive length checking, which could lead to a null page pointer dereference...

Linux Distros Unpatched Vulnerability : CVE-2025-38195

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - LoongArch: Fix panic caused by NULL-PMD in hugepteoffset ERROR INFO: CPU 25 Unable to handle kernel paging request at virtual address 0x0 ... Call Trace:...

CVE-2024-56612

In the Linux kernel, the following vulnerability has been resolved: mm/gup: handle NULL pages in unpinuserpages The recent addition of "pofs" pages or folios handling to gup has a flaw: it assumes that unpinuserpages handles NULL pages in the pages array. That's not the case, as I discovered when...

Unspecified vulnerability in Linux kernel (CNVD-2025-01681)

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 an issue with the handling of NULL pages by unpinuserpages in the mm/gup subsystem. No details of the...

CVE-2024-56612

In the Linux kernel, the following vulnerability has been resolved: mm/gup: handle NULL pages in unpinuserpages The recent addition of "pofs" pages or folios handling to gup has a flaw: it assumes that unpinuserpages handles NULL pages in the pages array. That's not the case, as I discovered when...

CVE-2024-56612

CVE-2024-56612 describes a Linux kernel vulnerability in mm/gup where unpin_user_pages() may dereference NULL pages in the pages** array when using pofs. The flaw was triggered by a configuration like x86 with numa=fake=2 movablecore=4G on Linux 6.12, leading to a kernel NULL pointer dereference ...

CVE-2024-56612 mm/gup: handle NULL pages in unpin_user_pages()

In the Linux kernel, the following vulnerability has been resolved: mm/gup: handle NULL pages in unpinuserpages The recent addition of "pofs" pages or folios handling to gup has a flaw: it assumes that unpinuserpages handles NULL pages in the pages array. That's not the case, as I discovered when...

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 an issue with the handling of NULL pages by unpinuserpages in the mm/gup subsystem. No details of the...

CVE-2021-47463

In the Linux kernel, the following vulnerability has been resolved: mm/secretmem: fix NULL page-mapping dereference in pageissecretmem Check for a NULL page-mapping before dereferencing the mapping in pageissecretmem, as the page's mapping can be nullified while gup is running, e.g. by reclaim or...

CVE-2021-47463

In the Linux kernel, the following vulnerability has been resolved: mm/secretmem: fix NULL page-mapping dereference in pageissecretmem Check for a NULL page-mapping before dereferencing the mapping in pageissecretmem, as the page's mapping can be nullified while gup is running, e.g. by reclaim or...

CVE-2021-47463

In the Linux kernel, the following vulnerability has been resolved: mm/secretmem: fix NULL page-mapping dereference in pageissecretmem Check for a NULL page-mapping before dereferencing the mapping in pageissecretmem, as the page's mapping can be nullified while gup is running, e.g. by reclaim or...

CVE-2021-47463

In the Linux kernel, the following vulnerability has been resolved: mm/secretmem: fix NULL page-mapping dereference in pageissecretmem Check for a NULL page-mapping before dereferencing the mapping in pageissecretmem, as the page's mapping can be nullified while gup is running, e.g. by reclaim or...

CVE-2021-47463 mm/secretmem: fix NULL page->mapping dereference in page_is_secretmem()

In the Linux kernel, the following vulnerability has been resolved: mm/secretmem: fix NULL page-mapping dereference in pageissecretmem Check for a NULL page-mapping before dereferencing the mapping in pageissecretmem, as the page's mapping can be nullified while gup is running, e.g. by reclaim or...

CVE-2021-47463

CVE-2021-47463 concerns a Linux kernel NULL pointer dereference in mm/secretmem during GUP operations. The issue arises from dereferencing page->mapping without ensuring it is non-NULL as a page mapping can be nulled while gup() runs (e.g., by reclaim or truncation). A fix was implemented to ...

VulnCheck KEV: CVE-2013-3881

win32k.sys in the kernel-mode drivers in Microsoft Windows 7 SP1 and Windows Server 2008 R2 SP1 allows local users to gain privileges via a crafted application, aka "Win32k NULL Page Vulnerability."...

CVE-2021-27077

Windows Win32k Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-26863, CVE-2021-26875, CVE-2021-26900. Recent assessments: gwillcox-r7 at March 11, 2021 6:25pm UTC reported: Interesting, so this was a bug within win32kfull.sys!BLTRECORD::bRotate originally disclosed by ZDI...

PSKernel-Primitives

This repository contains a collection of PowerShell primitives for exploitation, specifically targeting Windows systems. The code is written in PowerShell and utilizes various Windows APIs to achieve its goals. The repository includes several functions, each with a specific purpose: 1...

CVE-2019-9213

A flaw was found in mmap in the Linux kernel allowing the process to map a null page. This allows attackers to abuse this mechanism to turn null pointer dereferences into workable exploits. Mitigation Enabling selinux prevents the public exploit from working correctly...