Analyzing CVE-2026-31431: How Rootless Podman Containers Mitigate the "Copy Fail" Privilege Escalation
A technical deep-dive into CVE-2026-31431 ("Copy Fail"), a Linux kernel vulnerability. The author documents setting up a lab to run the exploit, disassemble the shellcode, trace it at the syscall level, and verify that rootless Podman containers (deployed on GNOME's GitLab runners) successfully contain the privilege escalation attempt. The post demonstrates
