message: Add integer overflow check to calloc
diff: @@ -186,12 +186,18 @@ pub unsafe extern "C" fn bsearch(
  #[no_mangle]
  pub unsafe extern "C" fn calloc(nelem: size_t, elsize: size_t) -> *mut c_void {
  - let size = nelem * elsize;
  + //Handle possible integer overflow in size calculation
  + let size_result = nelem.checked_mul(elsize);
  + match size_result {
  + Some(size) => {
  let ptr = malloc(size);
  if !ptr.is_null() {
  intrinsics::write_bytes(ptr as *mut u8, 0, size);
  }
  ptr
  + },
  + None => core::ptr::null_mut()
  + }
  }
  #[repr(C)]
  