speed: range check the argument given to -multi
For machines where sizeof(size_t) == sizeof(int) there is a possible overflow
which could cause a crash.
For machines where sizeof(size_t) > sizeof(int), the existing checks adequately
detect the situation.
Fixes
@@ -1540,6 +1540,10 @@ int speed_main(int argc, char **argv)
case OPT_MULTI:
#ifndef NO_FORK
multi = atoi(opt_arg());
+ if ((size_t)multi >= SIZE_MAX / sizeof(int)) {
+ BIO_printf(bio_err, "%s: multi argument too large\n", prog);
+ return 0;
+ }
#endif
break;
case OPT_ASYNCJOBS:
