diff --git a/deps/oblib/src/lib/restore/cos/ob_cos_wrapper.cpp b/deps/oblib/src/lib/restore/cos/ob_cos_wrapper.cpp
index c795040f9..666ef5d97 100644
--- a/deps/oblib/src/lib/restore/cos/ob_cos_wrapper.cpp
+++ b/deps/oblib/src/lib/restore/cos/ob_cos_wrapper.cpp
@@ -55,6 +55,7 @@ static int64_t strtotime(const char *date_time)
 {
   int64_t time = 0;
   struct tm tm_time;
+  memset(&tm_time, 0, sizeof(struct tm));
   if (NULL == strptime(date_time, "%a, %d %b %Y %H:%M:%S %Z", &tm_time)) {
     //skip set ret, for compat data formate
     cos_warn_log("[COS]failed to transform time, time=%s\n", date_time);
diff --git a/deps/oblib/src/lib/restore/ob_storage_oss_base.cpp b/deps/oblib/src/lib/restore/ob_storage_oss_base.cpp
index 17b6668aa..556e3f692 100644
--- a/deps/oblib/src/lib/restore/ob_storage_oss_base.cpp
+++ b/deps/oblib/src/lib/restore/ob_storage_oss_base.cpp
@@ -1627,6 +1627,7 @@ int ObStorageOssUtil::strtotime(const char *date_time, int64_t &time)
   int ret = OB_SUCCESS;
   time = 0;
   struct tm tm_time;
+  memset(&tm_time, 0, sizeof(struct tm));
   if (OB_ISNULL(date_time)) {
     ret = OB_INVALID_ARGUMENT;
     OB_LOG(WARN, "strtotime get invalid argument", K(ret), KP(date_time));
diff --git a/src/share/config/ob_config.cpp b/src/share/config/ob_config.cpp
index 7e05382ab..41a85dc56 100644
--- a/src/share/config/ob_config.cpp
+++ b/src/share/config/ob_config.cpp
@@ -714,6 +714,7 @@ bool ObConfigMomentItem::set(const char *str)
 {
   int ret = true;
   struct tm tm_value;
+  memset(&tm_value, 0, sizeof(struct tm));
   if (0 == STRCASECMP(str, "disable")) {
     value_.disable_ = true;
   } else if (OB_ISNULL(strptime(str, "%H:%M", &tm_value))) {