Linux内核exfat文件系统引用计数泄漏漏洞(CVE-2025-68351)

// This is a kernel-level vulnerability that requires local access // No public PoC available. The vulnerability is triggered through // normal file system operations on exfat partitions. #include <stdio.h> /* * Note: This vulnerability is in the Linux kernel exfat driver. * Triggering requires: * 1. A system with exfat filesystem mounted * 2. Local access with low privileges * 3. File system operations that call exfat_find * * The actual exploitation involves: * - Creating/manipulating files on exfat partition * - Causing exfat_find to be called with specific conditions * - Triggering the refcount leak path * * This is a resource management bug, not directly exploitable * for code execution. It leads to DoS through resource exhaustion. */ int main() { printf("CVE-2025-68351 PoC - Kernel exfat refcount leak\n"); printf("This requires kernel debugging/exploitation framework\n"); printf("Not directly exploitable from user space\n"); return 0; }