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-rw-r--r--src/afl-fuzz-one.c18
1 files changed, 11 insertions, 7 deletions
diff --git a/src/afl-fuzz-one.c b/src/afl-fuzz-one.c
index ee562f96..c6e9a295 100644
--- a/src/afl-fuzz-one.c
+++ b/src/afl-fuzz-one.c
@@ -842,6 +842,7 @@ u8 fuzz_one_original(afl_state_t *afl) {
 
   eff_map = afl_realloc(AFL_BUF_PARAM(eff), EFF_ALEN(len));
   if (unlikely(!eff_map)) { PFATAL("alloc"); }
+  memset(eff_map, 0, EFF_ALEN(len));
   eff_map[0] = 1;
 
   if (EFF_APOS(len - 1) != 0) {
@@ -2047,20 +2048,22 @@ custom_mutator_stage:
   afl->queue_cur->stats_mutated += afl->stage_max;
 #endif
 
-  if (likely(afl->custom_only)) {
+  /****************
+   * RANDOM HAVOC *
+   ****************/
+
+havoc_stage:
+
+  if (unlikely(afl->custom_only)) {
 
+    /* Force UI update */
+    show_stats(afl);
     /* Skip other stages */
     ret_val = 0;
     goto abandon_entry;
 
   }
 
-  /****************
-   * RANDOM HAVOC *
-   ****************/
-
-havoc_stage:
-
   afl->stage_cur_byte = -1;
 
   /* The havoc stage mutation code is also invoked when splicing files; if the
@@ -3570,6 +3573,7 @@ static u8 mopt_common_fuzzing(afl_state_t *afl, MOpt_globals_t MOpt_globals) {
 
   eff_map = afl_realloc(AFL_BUF_PARAM(eff), EFF_ALEN(len));
   if (unlikely(!eff_map)) { PFATAL("alloc"); }
+  memset(eff_map, 0, EFF_ALEN(len));
   eff_map[0] = 1;
 
   if (EFF_APOS(len - 1) != 0) {