diff --git a/framework/support/posix/src/osal_time.c b/framework/support/posix/src/osal_time.c
index 0b3d2a56b9eb0f9c50ac2d6b60945aff590c6635..34a1b478158290e4ebe8bf2a3ac899533970ca14 100644
--- a/framework/support/posix/src/osal_time.c
+++ b/framework/support/posix/src/osal_time.c
@@ -42,7 +42,7 @@ int32_t OsalDiffTime(const OsalTimespec *start, const OsalTimespec *end, OsalTim
         return HDF_ERR_INVALID_PARAM;
     }
 
-    if (start->sec > end->sec) {
+    if ((start->sec > end->sec) || ((end->sec == start->sec) && (end->usec < start->usec))) {
         HDF_LOGE("%s start time later then end time", __func__);
         return HDF_ERR_INVALID_PARAM;
     }
@@ -52,8 +52,8 @@ int32_t OsalDiffTime(const OsalTimespec *start, const OsalTimespec *end, OsalTim
         sec = 1;
     }
 
-    uint32_t secTime = start->sec + sec;
-    if (end->sec - secTime < 0 || end->sec > UINT32_MAX - secTime) {
+    if ((start->sec + sec > UINT64_MAX) || (usec + end->usec > UINT64_MAX) ||
+        (end->sec < start->sec + sec) || (end->usec + usec < start->usec)) {
         HDF_LOGE("%s end time invalid", __func__);
         return HDF_ERR_INVALID_PARAM;
     }
diff --git a/interfaces/inner_api/hdi/base/hdi_smq.h b/interfaces/inner_api/hdi/base/hdi_smq.h
index 0c488453c16d5a52e108987e365f6aa4ac01a1f3..e10e62e6c8574bfa14cd72c3088d258a7ed9291c 100644
--- a/interfaces/inner_api/hdi/base/hdi_smq.h
+++ b/interfaces/inner_api/hdi/base/hdi_smq.h
@@ -401,7 +401,7 @@ bool SharedMemQueue<T>::IsGood()
 template <typename T>
 size_t SharedMemQueue<T>::Align(size_t num, size_t alignSize)
 {
-    if ((num + alignSize) < 1 || num > (SIZE_MAX - alignSize)) {
+    if (alignSize < 1 || num > (SIZE_MAX - alignSize)) {
         HDF_LOGE("Invalid parameter num or alignSize");
         return 0;
     }