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-rw-r--r--src/afl-fuzz-globals.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/afl-fuzz-globals.c b/src/afl-fuzz-globals.c
index 88633a1b..6de33596 100644
--- a/src/afl-fuzz-globals.c
+++ b/src/afl-fuzz-globals.c
@@ -79,6 +79,8 @@ list_t afl_states = {.element_prealloc_count = 0};
 
 void afl_state_init(afl_state_t *afl) {
 
+  /* thanks to this memset, growing vars like out_buf
+  and out_size are NULL/0 by default. */
   memset(afl, 0, sizeof(afl_state_t));
 
   afl->w_init = 0.9;