From cbd860b8e62ec0dc85d4d76a9a8900a3db9c740c Mon Sep 17 00:00:00 2001
From: chenziyang <chenziyang4@huawei.com>
Date: Tue, 8 Nov 2022 11:15:36 +0800
Subject: [PATCH] Fix heap buffer overflow error in
 yaml_emitter_emit_flow_sequence_item function
 
---
 src/emitter.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)
 
diff --git a/src/emitter.c b/src/emitter.c
index 609b28a..336bfd1 100644
--- a/src/emitter.c
+++ b/src/emitter.c
@@ -758,7 +758,13 @@ yaml_emitter_emit_flow_sequence_item(yaml_emitter_t *emitter,
     if (event->type == YAML_SEQUENCE_END_EVENT)
     {
         emitter->flow_level --;
-        emitter->indent = POP(emitter, emitter->indents);
+        if (!STACK_EMPTY(emitter, emitter->indents)) {
+            emitter->indent = POP(emitter, emitter->indents);
+        }
+        else {
+            emitter->indent = 0; // set to default
+        }
+
         if (emitter->canonical && !first) {
             if (!yaml_emitter_write_indicator(emitter, ",", 0, 0, 0))
                 return 0;
-- 
2.21.0.windows.1