added check to silence scan-build

1 files changed, 7 insertions, 0 deletions

diff --git a/src/afl-fuzz-run.c b/src/afl-fuzz-run.c
index 41557707..cc2ef891 100644
--- a/src/afl-fuzz-run.c
+++ b/src/afl-fuzz-run.c
@@ -430,6 +430,13 @@ u8 calibrate_case(afl_state_t *afl, struct queue_entry *q, u8 *use_mem,
   /* OK, let's collect some stats about the performance of this test case.
      This is used for fuzzing air time calculations in calculate_score(). */
 
+  if (unlikely(!afl->stage_max)) {
+
+    // Pretty sure this cannot happen, yet scan-build complains.
+    FATAL("BUG: stage_max should not be 0 here! Please report this condition.");
+
+  }
+
   q->exec_us = (stop_us - start_us) / afl->stage_max;
   q->bitmap_size = count_bytes(afl, afl->fsrv.trace_bits);
   q->handicap = handicap;