CVE-2025-54335 三星Exynos处理器Xclipse GPU驱动use-after-free漏洞

// CVE-2025-54335 PoC - Use-after-free in Samsung Xclipse GPU Driver // Note: This is a conceptual PoC for demonstration purposes #include <stdio.h> #include <stdlib.h> #include <string.h> // Simulated GPU object structure struct gpu_buffer { void* data; size_t size; int ref_count; }; // Trigger use-after-free condition void trigger_uaf(struct gpu_buffer* buf) { // Free the buffer free(buf->data); // Use-after-free: accessing freed memory // In real scenario, this would be GPU driver code memset(buf->data, 0x41, 256); // UAF here // Attacker could control the reallocated memory // to achieve arbitrary code execution } int main() { printf("CVE-2025-54335 Conceptual PoC\n"); printf("Target: Samsung Exynos Xclipse GPU Driver\n"); printf("Vulnerability: Use-after-free\n"); return 0; } // Real exploitation would require: // 1. GPU ioctl interface access // 2. Specific buffer allocation/free patterns // 3. Heap spraying to control reallocated memory