1 files changed, 4 insertions, 1 deletions
diff --git a/util/iobuf.c b/util/iobuf.c
index 471653877..dd1a2b181 100644
--- a/util/iobuf.c
+++ b/util/iobuf.c
@@ -905,7 +905,10 @@ iobuf_close ( IOBUF a )
 					 a->chain, NULL, &dummy_len)) )
 	    log_error("IOBUFCTRL_FREE failed on close: %s\n", g10_errstr(rc) );
 	m_free(a->real_fname);
-	m_free(a->d.buf);
+        if (a->d.buf) {
+            memset (a->d.buf, 0, a->d.size); /* erase the buffer */
+            m_free(a->d.buf);
+        }
 	m_free(a);
     }
     return rc;