CVE-2025-58411: Imagination GPU驱动资源管理漏洞导致权限提升

/* CVE-2025-58411 PoC Concept (Educational Purpose Only) This is a conceptual demonstration of the vulnerability pattern. Actual exploitation requires specific GPU hardware and driver versions. */ #include <stdio.h> #include <stdlib.h> #include <string.h> // Simulated GPU resource structure typedef struct { void* memory_ptr; int ref_count; int resource_id; } gpu_resource_t; // Vulnerable pattern: improper reference counting void gpu_release_resource(gpu_resource_t* res) { res->ref_count--; if (res->ref_count <= 0) { // Simulated free without proper validation free(res->memory_ptr); res->memory_ptr = NULL; // Should check for dangling references } } // Trigger the vulnerable condition void trigger_uaf_scenario() { gpu_resource_t* res = (gpu_resource_t*)malloc(sizeof(gpu_resource_t)); res->memory_ptr = malloc(1024); res->ref_count = 1; res->resource_id = 0x1234; // First release gpu_release_resource(res); // UAF: Access after free (vulnerable code path) // In real scenario, another thread/callback might access res->memory_ptr // here before the memory is fully cleaned up if (res->memory_ptr != NULL) { // This is the use-after-free condition memcpy(res->memory_ptr, "malicious_data", 14); } } int main() { printf("CVE-2025-58411 PoC Concept\n"); printf("Imagination GPU Driver Resource Management Vulnerability\n"); trigger_uaf_scenario(); return 0; }