Linux Journal

Playing with ptrace, Part II

In Part I of this article [LJ, November 2002], we saw how ptrace can be used to trace system calls and change system call arguments. In this article, we investigate advanced techniques like setting ...
Infosecurity Magazine

Nine-Year-Old Linux Kernel Flaw Leaks SSH Keys and Password Hashes

A nine-year-old logic flaw in the Linux kernel's process trace (ptrace) path has been discovered that could let unprivileged ...
OSTechNix

Linus Torvalds Just Patched a 6-Year Old Major Linux “File Descriptor Theft” Vulnerability

Learn how the ptrace_may_access bug lets attackers steal root files like SSH keys and shadow file. Find out if your Linux ...

The 4th Linux kernel flaw this month can lead to stolen SSH host keys

The 4th Linux kernel flaw this month can lead to stolen SSH host keys ...
OSTechNix

Linux Kernel 7.0.8 is Released to Fix ssh-keysign-pwn Root Exploit

Linux Kernel 7.0.8 is released with patches to fix the ssh-keysign-pwn (CVE-2026-46333) root exploit flaw. Update your Linux ...
Network World

A new tracing system for Linux: utrace

A simplified system for tracing under Linux lets user-defined “tracing engines” keep an eye on a process’ system calls, inject new events, and monitor CPU state. Soon there may be a better alternative ...
Linux Journal

Playing with ptrace, Part I

Have you ever wondered how system calls can be intercepted? Have you ever tried fooling the kernel by changing system call arguments? Have you ever wondered how debuggers stop a running process and ...