diff --git a/kernel/base/vm/shm.c b/kernel/base/vm/shm.c
index 8ae1f824dd452b33e5e00b57590dd71277b4fcbc..29522bce38d9398b83c8aae838fe85badd6b48ee 100644
--- a/kernel/base/vm/shm.c
+++ b/kernel/base/vm/shm.c
@@ -761,7 +761,7 @@ 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;
     }