本地提权 / 容器逃逸 CVE-2026-31431

使用方式：

go build -ldflags="-s -w" -o CopyFail CVE-2026-31431.go

./CopyFail

影响版本：

Ubuntu 18.04, 20.04, 22.04, 24.04

Debian 11, 12, 13

RHEL 8, 9, 10

CentOS 8

Rocky Linux 8, 9, 10

AlmaLinux 8, 9, 10

Fedora 33-42

Alibaba Cloud Linux 2, 3, 4

SUSE 12, 15, 16

Amazon Linux 2023

Oracle Linux 7,8,9,10