message: Backport check from liyansong2018 /
diff: @@ -169,7 +169,7 @@ int main(int argc, char **argv) {
  segment->size,
  segment->alignment
  );
  - if (segment->size > 3) {
  + if (segment->size > 3 && segment->content != NULL) {
  fprintf(stdout, "content[0..3]: %02x %02x %02x\n",
  segment->content[0], segment->content[1], segment->content[2]);
  }
  