CVE-2026-23405: Linux内核AppArmor命名空间资源耗尽漏洞

/* * Conceptual PoC for CVE-2026-23405 * This code demonstrates the logic of creating nested namespaces * to exhaust system resources. Actual implementation requires * specific AppArmor namespace creation interfaces. */ #include <stdio.h> #include <stdlib.h> #include <unistd.h> // Simulating the creation of a nested namespace. // In a real exploit, this would involve AppArmor specific syscalls or file operations. void create_nested_namespace(int depth) { if (depth <= 0) return; // Placeholder for AppArmor namespace creation logic // e.g., unshare(CLONE_NEWNS) or writing to apparmorfs printf("Creating namespace at depth: %d\n", depth); // Recursion to create nesting create_nested_namespace(depth - 1); } int main() { printf("Starting PoC for CVE-2026-23405...\n"); // Attempt to create a very deep nesting structure // to trigger resource exhaustion while(1) { create_nested_namespace(10000); } return 0; }