diff --git a/kernel/base/vm/shm.c b/kernel/base/vm/shm.c
index 637c61674feb949f8875abd25ffa7f4449d54ee6..1a912da0a953f6174ceea40de8d4574ca76ebb6c 100644
--- a/kernel/base/vm/shm.c
+++ b/kernel/base/vm/shm.c
@@ -758,7 +758,7 @@ INT32 ShmDt(const VOID *shmaddr)
 
     (VOID)LOS_MuxAcquire(&space->regionMux);
     region = LOS_RegionFind(space, (VADDR_T)(UINTPTR)shmaddr);
-    if (region == NULL) {
+    if ((region == NULL) || !OsIsShmRegion(region)) {
         ret = EINVAL;
         goto ERROR_WITH_LOCK;
     }