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...

StackRot

StackRot CVE-2023-3269: vulnerabilidad de escalada de privilegios en el kernel de Linux Exploit verificado por GitHub-CI Se encontró una falla en el manejo de la expansión de la pila en el kernel de Linux 6.1 hasta 6.4, también conocida como "Stack Rot". El árbol maple, responsable de gestionar l...

salt

Welcome to salt , a tool to reverse and learn kernel heap memory management. It can be useful to develop an exploit, to debug your own kernel code, and, more importantly, to play with the kernel heap allocations and learn its inner workings. This tool helps tracing allocations and the current sta...

CVE-2026-23416-POC

CVE-2026-23416 — PoC mm/mseal: update VMA end correctly on merge Vulnerability discovered by Antonius / Blue Dragon Security Overview Field| Detail ---|--- CVE ID| CVE-2026-23416 Subsystem| mm/mseal — mm/vma.c Affected| Linux kernel 6.17 through 7.0-rc5 Fixed in| Linux 7.0-rc6, stable backports...

CVE-2026-20637-AppleSEPKeyStore-UAF

CVE-2026-20637: Uso después de liberación en AppleSEPKeyStore CVE-2026-20637 | Autor: Johnny Franks @zeroxjf Componente: AppleKeyStore Impacto: Una app podría provocar la terminación inesperada del sistema Descripción: Se solucionó un problema de uso después de liberación mejorando la gestión de...

windows-api-function-cheatsheets

Hoja de referencia de funciones de la API de Windows Contacto 🌨️ Snowcrash: [email protected] Tabla de contenidos Hoja de referencia de funciones de la API de Windows Operaciones de archivos Gestión de procesos Gestión de memoria Gestión de hilos Gestión de bibliotecas de vínculos dinámicos...

CVE-2018-17182

CVE-2018-17182 Linux 内核VMA-UAF 提权漏洞（CVE-2018-17182） About Google Project Zero的网络安全研究人员发布了详细信息，并针对自内核版本3.16到4.18.8以来Linux内核中存在的高严重性漏洞的概念验证（PoC）漏洞利用。 由白帽黑客Jann Horn发现，内核漏洞（CVE-2018-17182）是Linux内存管理子系统中的缓存失效错误，导致释放后使用漏洞， 如果被利用，可能允许攻击者获得root权限目标系统上的特权...

CVE-2026-98281

In the Linux kernel, the following vulnerability has been resolved: futex: Also allocate private hash on vfork As Jann demonstrated, it is entirely feasible to access the mm through vfork. Therefore we need to allocate a private hash on vfork as well as any other CLONEVM user. Specifically, it mu...

EUVD-2026-93309

In the Linux kernel, the following vulnerability has been resolved: dmaengine: pxa: fix double counting of the hw descriptors pxadallocdesc was converted from kzallocstructsizeswdesc, hwdesc, nbhwdesc, GFPNOWAIT to kzallocflex, which sets the countedby counter swdesc-nbdesc itself - but only wher...

CVE-2026-98281

The Linux kernel contains a vulnerability where a private hash must be allocated during a vfork() system call, similar to other CLONE_VM users. This is necessary because it is feasible to access the mm (memory management) through vfork(). The issue specifically requires ensuring that (private) fu...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: x86/EFI: The deferral of freeing boot services memory The efifreebootservices function frees the memory occupied by EFIBOOTSERVICESCODE and EFIBOOTSERVICESDATA using memblockfreelate. There are two issues with this approach:...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: fs/proc: taskmmu.c: Do not read mapcount for migration entries The syzbot reported the following bug: Kernel bug at include/linux/page-flags.h: 785 Invalid opcode: 0000 1 PREEMPT SMP KASAN CPU: 1; PID: 4392; Comm: syz-executor560...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: usb: xhci: Apply the link chain quirk on NEC isoc endpoints Two distinctly different samples of NEC uPD720200 one with a start/stop bug, one without it were observed to cause IOMMU faults after some “Missed Service Errors”. Th...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: powerpc/64s: Fixed the use of VAS memory after freeing it. The reference count on the memory module is lowered before the coprocessor is detached...

Astra Linux – Vulnerability in WebKit2GTK

A “use-after-free” issue has been addressed through improved memory management. This issue is fixed in Safari 26.1, iOS 26.1, iPadOS 26.1, macOS Tahoe 26.1, tvOS 26.1, visionOS 26.1, and watchOS 26.1. Processing maliciously crafted web content may lead to an unexpected process crash...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Fixed an issue where free was called after the memory was allocated. Our code analyzer reported a Use-after-Free UAF vulnerability. In the function siwallocmr, it calls siwmraddmemmr,.... In the implementation of...

kernel: mm/slab: do not limit zeroing to orig_size when only red zoning is enabled

A flaw was found in the Linux kernel's memory management subsystem. This issue occurs when the kernel's memory allocator attempts to zero out newly allocated memory, but an incorrect check prevents the full memory region from being cleared under specific configurations. This can lead to memory no...

Cisco ASA Access of Memory Location After End of Buffer (CVE-2024-20402)

A vulnerability in the SSL VPN feature for Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service DoS condition. This...

linux-insides

linux-insides A book-in-progress about the Linux kernel and its insides. Introduction • Chapter status • Requirements • Translations • Contributing • Author Introduction linux-insides is a book-in-progress about the Linux kernel and its insides. The goal of this project is simple - to share...

windows-api-function-cheatsheets

Hojas de referencia de funciones de la API de Windows Contacto 🌨️ Tetsuo: https://www.x.com/tetsuo Tabla de contenidos Hojas de referencia de funciones de la API de Windows Operaciones de archivos Gestión de procesos Gestión de memoria Gestión de subprocesos Gestión de bibliotecas de vínculos...