CVE-2026-23409: Linux内核AppArmor差分编码验证漏洞

/* * PoC for CVE-2026-23409 * This code demonstrates the concept of triggering the vulnerability. * Actual exploitation requires a crafted AppArmor profile binary. */ #include <stdio.h> #include <stdlib.h> #include <fcntl.h> #include <unistd.h> int main(int argc, char **argv) { int fd; char *profile_data = "...malformed_diff_encoding_blob..."; printf("[+] Attempting to load malicious AppArmor profile...\n"); // In a real exploit, 'profile_data' would contain the specific // differential encoding structure that bypasses the verification loop check. // This would typically be written to a file and loaded via apparmor_parser // or directly interacting with the kernel interface if permissions allow. // Example: system("apparmor_parser -r malicious_profile"); printf("[-] If the kernel is vulnerable, the system may hang now.\n"); return 0; }