memset the memory area in free.

diff --git a/lib/silcutil/stacktrace.c b/lib/silcutil/stacktrace.c
index 1eecca1dea8b62b4aa6432ea99cb9e999c64d418..9f335e44258dffe481751c37de03a3fb05a2a61d 100644 (file)
--- a/lib/silcutil/stacktrace.c
+++ b/lib/silcutil/stacktrace.c
@@ -152,6 +152,8 @@ void silc_st_free(void *ptr, const char *file, int line)
     st_blocks = stack->next;
 
   st_blocks_count--;
+
+  memset(stack, 'F', SILC_ST_GET_SIZE(stack->size));
   free(stack);
 }