CVE-2023-3338-DECPwn

DECPwn Practicing different Linux kernel exploitation techniques with my DECnet vulnerability and null page mapping enabled. Scenarios Everything disabled : qemu-system-x8664 -append "nosmap nosmep nopti nokaslr" Code execution is redirected to the output function in userland, which invokes...

SUIDGuard

SUIDGuard - A kernel extension adding mitigations to OS X to make exploitation harder Copyright c Stefan Esser / SektionEins GmbH, 2015. All rights reserved. [email protected] - https://www.sektioneins.de/ OFFICIAL WEBSITE If you came here from a media article please checkout the official...

CVE-2011-1237

CVE-2011-1237 This is an old POC for CVE-2011-1237 on Windows 7 written in 2013. The vulnerability was discovered by Tarjei Mandt @kernelpool and explain in his paper Kernel Attacks through User-Mode Callbacks. Several things are hardcoded in this POC and it call the Null page which does not work...

CVE-2026-68454

In the Linux kernel KVM s390 PCI implementation, CVE-2026-68454 arises from improper handling when a guest registers IRQs without a summary bit: the GAITE stores a invalid address (virt_to_phys(page_address(NULL))) instead of 0 for the guest AISB. Root cause is memory address handling in this pat...

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 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...

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 ...

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

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 ...

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...