confio: fix stack-use-after-scope when processing check error

diff --git a/src/knot/conf/confio.c b/src/knot/conf/confio.c
index 12aef671ff27b9560f055b4a0bb8ffc365d1e823..4691f0521dce5ef4ab0a39325f9f851ba8a19efe 100644 (file)
--- a/src/knot/conf/confio.c
+++ b/src/knot/conf/confio.c
@@ -1316,6 +1316,7 @@ static int check_section(
 
        bool non_empty = false;
 
+       conf_val_t bin; // Must be in the scope of the error processing.
        for (yp_item_t *item = group->sub_items; item->name != NULL; item++) {
                args.item = item;
 
@@ -1330,7 +1331,6 @@ static int check_section(
                }
 
                // Get the item value.
-               conf_val_t bin;
                conf_db_get(conf(), conf()->io.txn, group->name, item->name, id,
                            id_len, &bin);
                if (bin.code == KNOT_ENOENT) {