diff --git a/arch/arm/cortex-m33/iar/TZ/secure/los_secure_context.c b/arch/arm/cortex-m33/iar/TZ/secure/los_secure_context.c
index db9a4f9a37da75ff23656749fd4cf200f5df8237..7220107bea3b0400a9f9411ad7666a1aeca323e4 100644
--- a/arch/arm/cortex-m33/iar/TZ/secure/los_secure_context.c
+++ b/arch/arm/cortex-m33/iar/TZ/secure/los_secure_context.c
@@ -74,6 +74,16 @@ OS_CMSE_NS_ENTRY OsSecureContext *HalSecureContextAlloc(UINT32 size)
 
 OS_CMSE_NS_ENTRY VOID HalSecureContextFree(OsSecureContext *secureContext)
 {
+    if (secureContext == NULL) {
+        return;
+    }
+
+    SecureHeapInfo heapInfo = HalGetSecureHeapInfo();
+    if (secureContext < heapInfo.start ||
+        (secureContext + sizeof(OsSecureContext)) > (heapInfo.start + heapInfo.size)) {
+        return;
+    }
+
     UINT32 ipsr;
 
     OS_IPSR_READ(ipsr);
diff --git a/arch/arm/cortex-m33/iar/TZ/secure/los_secure_heap.c b/arch/arm/cortex-m33/iar/TZ/secure/los_secure_heap.c
index 7f0077e005f986e8bb2b5eb18b3485b3ea08fc96..78e2267d3ed1a60bfa05abdf991b43a130baac14 100644
--- a/arch/arm/cortex-m33/iar/TZ/secure/los_secure_heap.c
+++ b/arch/arm/cortex-m33/iar/TZ/secure/los_secure_heap.c
@@ -228,3 +228,10 @@ OS_CMSE_NS_ENTRY VOID HalSecureFree(VOID *ptr)
     OsSecureHeapFreeNode(node);
 }
 
+OS_CMSE_NS_ENTRY SecureHeapInfo HalGetSecureHeapInfo(void)
+{
+    SecureHeapInfo info;
+    info.start = g_secureHeap;
+    info.size = LOSCFG_SECURE_HEAP_SIZE;
+    return info;
+}
\ No newline at end of file
diff --git a/arch/arm/cortex-m33/iar/TZ/secure/los_secure_heap.h b/arch/arm/cortex-m33/iar/TZ/secure/los_secure_heap.h
index d3ee1aadb87303dc9ebb12d159c179142925d625..2548a6e860b262535e86313e07a17fe7bc49a342 100644
--- a/arch/arm/cortex-m33/iar/TZ/secure/los_secure_heap.h
+++ b/arch/arm/cortex-m33/iar/TZ/secure/los_secure_heap.h
@@ -40,6 +40,12 @@ extern "C" {
 #endif /* __cplusplus */
 #endif /* __cplusplus */
 
+typedef struct {
+    UINT8 *start;
+    UINT32 size;
+} SecureHeapInfo;
+
+OS_CMSE_NS_ENTRY SecureHeapInfo HalGetSecureHeapInfo(void);
 VOID *HalSecureMalloc(UINT32 size);
 VOID HalSecureFree(VOID *ptr);