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codeql/cpp/ql/src/Critical/MissingCheckScanf.cpp at codeql-cli/v2.15.5 · github/codeql · GitHub

17 lines (12 loc) · 266 Bytes

  int i, j, r;
  r = scanf("%d %d", &i, &j);
  use(i); // BAD: i is not guarded
  if (r >= 1) {
    use(i); // GOOD: i is guarded correctly
    use(j); // BAD: j is guarded incorrectly
  if (r != 2)
    return;
  use(j); // GOOD: j is guarded correctly

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