yang parser BUGFIX double free

Fixes #739
CESNET · Mar 29, 2019 · 88bd6c5 · 88bd6c5
1 parent 9783c5a
commit 88bd6c5
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diff --git a/src/parser_yang_bis.c b/src/parser_yang_bis.c
@@ -9123,6 +9123,7 @@ void
 yyerror(YYLTYPE *yylloc, void *scanner, struct yang_parameter *param, ...)
 {
   free(*param->value);
+  *param->value = NULL;
   if (yylloc->first_line != -1) {
     if (*param->data_node && (*param->data_node) == (*param->actual_node)) {
       LOGVAL(param->module->ctx, LYE_INSTMT, LY_VLOG_LYS, *param->data_node, yyget_text(scanner));

diff --git a/src/yang.y.in b/src/yang.y.in
@@ -4833,6 +4833,7 @@ void
 yyerror(YYLTYPE *yylloc, void *scanner, struct yang_parameter *param, ...)
 {
   free(*param->value);
+  *param->value = NULL;
   if (yylloc->first_line != -1) {
     if (*param->data_node && (*param->data_node) == (*param->actual_node)) {
       LOGVAL(param->module->ctx, LYE_INSTMT, LY_VLOG_LYS, *param->data_node, yyget_text(scanner));