CVE-2017-5123

CVE-2017-5123 Bug overview The waitid system call in the Linux kernel did not validate the destination address used. This could allow a local user to write to kernel memory, potentially leading to privilege escalation on the device or sandbox escape. Vulnerability description Vulnerability...

CVE-2017-5123

CVE-2017-5123 PoC CVE-2017-5123 - LPE - Bypassing SMEP/SMAP. No KASLR The waitid implementation in upstream kernels did not restrict the target destination to copy information results. This can allow local users to write to otherwise protected kernel memory, which can lead to privilege escalation...

CVE-2017-5123

README Note : The code in this repo is to demo the isolation of secure pod sandbox technologies such as kata containers and does not intend to attack any platforms. How to re-produce Get linux kernel 4.13.0 patch 0001-CVE-2017-5123-help-to-make-attack-safely.patch Build Linux kernel with config...

exploit_linux_kernel4.13

This repo contains an old poc that combines three CVEs CVE-2017-14954, CVE-2017-18344, CVE-2017-5123. The poc is a Local Privilege Escalation for Linux Kernel 4.13 tested on Ubuntu. The exploit uses an info leak CVE-2017-14954 to bypass KASLR, an arbitrary read CVE-2017-18344 to read the kernel...

cve-2017-5123

CVE-2017-5123 This repository contains a demonstration of CVE-2017-5123 , an ICMP command-and-control backdoor, and a CWE-78 OS Command Injection vulnerable web app. Part of CSC 4308 - Challenge 3. Prerequisites Linux Kernel : 4.13 up to but excluding 4.13.7 Node.js : 10.x npm : 6.x Overview This...

CVE-2017-5123

CVE-2017-5123 Linux privilege escalation exploiting waitid syscall. The exploit is brought to you by @XeR0x2A and @chaignc from HexpressoTeam for educational purposes only. The bug was introduced the 2017-05-21 and fixed 2017-10-09, 4.14.0-rc4+ is known vulnerable. asciicast If you have a...

CVE-2017-16994

/ disablemapminadd.c / / / include include include include include include include / offsets might differ, kernel was custom compiled you can read vmlinux and caculate the offset when testing / / define OFFSETKERNELBASE 0x000000 / define MMAPMINADDR 0x1101de8 define DACMMAPMINADDR 0xe8e810 / get...

SUSE CVE-2026-99227

In the Linux kernel, the following vulnerability has been resolved: iouring/waitid: prevent cancel reference wrap iowaitid packs the cancellation state into bit 31 of -refs and uses bits 30:0 as a 31-bit reference counter: define IOWAITIDCANCELFLAG BIT31 define IOWAITIDREFMASK GENMASK30, 0...

SUSE CVE-2026-99231

In the Linux kernel, the following vulnerability has been resolved: iouring/waitid: own the request before clearing -head iowaitidremovewq only takes the wait queue lock if -head is set. iowaitidwait clears -head first thing, before it tries to become the owner of the request by bumping -refs. If...

CVE-2026-99231

In the Linux kernel, the following vulnerability has been resolved: iouring/waitid: own the request before clearing -head iowaitidremovewq only takes the wait queue lock if -head is set. iowaitidwait clears -head first thing, before it tries to become the owner of the request by bumping -refs. If...

CVE-2026-99227

In the Linux kernel, the following vulnerability has been resolved: iouring/waitid: prevent cancel reference wrap iowaitid packs the cancellation state into bit 31 of -refs and uses bits 30:0 as a 31-bit reference counter: define IOWAITIDCANCELFLAG BIT31 define IOWAITIDREFMASK GENMASK30, 0...

CVE-2026-99231

A flaw was found in the Linux kernel's iouring subsystem. A race condition in the waitid operation allows a request to be completed and freed while a wake-up handler is still accessing it, leading to a use-after-free vulnerability. A local user could exploit this flaw to cause a system crash,...

CVE-2026-99231

In the Linux kernel, the following vulnerability has been resolved: iouring/waitid: own the request before clearing -head iowaitidremovewq only takes the wait queue lock if -head is set. iowaitidwait clears -head first thing, before it tries to become the owner of the request by bumping -refs. If...

DEBIAN-CVE-2026-99231

In the Linux kernel, the following vulnerability has been resolved: iouring/waitid: own the request before clearing -head iowaitidremovewq only takes the wait queue lock if -head is set. iowaitidwait clears -head first thing, before it tries to become the owner of the request by bumping -refs. If...

DEBIAN-CVE-2026-99227

In the Linux kernel, the following vulnerability has been resolved: iouring/waitid: prevent cancel reference wrap iowaitid packs the cancellation state into bit 31 of -refs and uses bits 30:0 as a 31-bit reference counter: define IOWAITIDCANCELFLAG BIT31 define IOWAITIDREFMASK GENMASK30, 0...

CVE-2026-99227

In the Linux kernel, the following vulnerability has been resolved: iouring/waitid: prevent cancel reference wrap iowaitid packs the cancellation state into bit 31 of -refs and uses bits 30:0 as a 31-bit reference counter: define IOWAITIDCANCELFLAG BIT31 define IOWAITIDREFMASK GENMASK30, 0...

UBUNTU-CVE-2026-99227

In the Linux kernel, the following vulnerability has been resolved: iouring/waitid: prevent cancel reference wrap iowaitid packs the cancellation state into bit 31 of -refs and uses bits 30:0 as a 31-bit reference counter: define IOWAITIDCANCELFLAG BIT31 define IOWAITIDREFMASK GENMASK30, 0...

UBUNTU-CVE-2026-99231

In the Linux kernel, the following vulnerability has been resolved: iouring/waitid: own the request before clearing -head iowaitidremovewq only takes the wait queue lock if -head is set. iowaitidwait clears -head first thing, before it tries to become the owner of the request by bumping -refs. If...

CVE-2026-99227

In the Linux kernel, the following vulnerability has been resolved: iouring/waitid: prevent cancel reference wrap iowaitid packs the cancellation state into bit 31 of -refs and uses bits 30:0 as a 31-bit reference counter: define IOWAITIDCANCELFLAG BIT31 define IOWAITIDREFMASK GENMASK30, 0...

CVE-2026-99231

In the Linux kernel, the following vulnerability has been resolved: iouring/waitid: own the request before clearing -head iowaitidremovewq only takes the wait queue lock if -head is set. iowaitidwait clears -head first thing, before it tries to become the owner of the request by bumping -refs. If...