diff --git a/support/platform/include/can/can_service.h b/support/platform/include/can/can_service.h
index 79fc89ca8d2a501694a657abbd8c8186a104e48f..eaf59b7bd417c092a915615547142c4ad41ebc60 100644
--- a/support/platform/include/can/can_service.h
+++ b/support/platform/include/can/can_service.h
@@ -24,6 +24,8 @@ enum CanIoCmd {
 
 int32_t CanServiceBind(struct HdfDeviceObject *device);
 
+void CanServiceRelease(struct HdfDeviceObject *device);
+
 #ifdef __cplusplus
 }
 #endif /* __cplusplus */
diff --git a/support/platform/src/can/can_mail.c b/support/platform/src/can/can_mail.c
index 600673c9747c11eb05d914581a9ad5e2cc921e4c..f4b969980036e01bb6b86489e1028cef3c70b217 100644
--- a/support/platform/src/can/can_mail.c
+++ b/support/platform/src/can/can_mail.c
@@ -68,6 +68,7 @@ int32_t CanRxBoxAddMsg(struct CanRxBox *rbox, struct CanMsg *cmsg)
     CanMsgGet(cmsg); // increase ref count before enqueue
     ret = PlatformQueueAddMsg(rbox->queue, pmsg);
     if (ret != HDF_SUCCESS) {
+        OsalMemFree(pmsg);
         CanMsgPut(cmsg); // decrase ref count if enqueue failed 
     }
     return ret;
@@ -175,5 +176,6 @@ int32_t CanRxBoxDelFilter(struct CanRxBox *rbox, const struct CanFilter *filter)
             return HDF_SUCCESS;
         }
     }
+    CanRxBoxUnlock(rbox);
     return HDF_ERR_NOT_SUPPORT;
 }
diff --git a/support/platform/src/can/can_service.c b/support/platform/src/can/can_service.c
index 4b003e223cc089fb03bf7c84166502fb4375865d..59e563d6512eab76b5d998a13826d213f2180328 100644
--- a/support/platform/src/can/can_service.c
+++ b/support/platform/src/can/can_service.c
@@ -54,3 +54,10 @@ int32_t CanServiceBind(struct HdfDeviceObject *device)
     device->service = service;
     return HDF_SUCCESS;
 }
+
+void CanServiceRelease(struct HdfDeviceObject *device)
+{
+    if (device != NULL && device->service != NULL) {
+        OsalMemFree(device->service);
+    }
+}
diff --git a/support/platform/test/unittest/common/hdf_can_test.cpp b/support/platform/test/unittest/common/hdf_can_test.cpp
index ac85a3724b7bb0f6d25e094928be88bf5e8fe35a..a393ae44eaee3555695478ecaa0e1e479582d5c8 100644
--- a/support/platform/test/unittest/common/hdf_can_test.cpp
+++ b/support/platform/test/unittest/common/hdf_can_test.cpp
@@ -95,7 +95,7 @@ HWTEST_F(HdfCanTest, HdfCanTest004_AddAndDelFilter, TestSize.Level1)
  * @tc.type: FUNC
  * @tc.require: NA
  */
-HWTEST_F(HdfCanTest, HdfCanTest005_AddNultiFilters, TestSize.Level1)
+HWTEST_F(HdfCanTest, HdfCanTest005_AddMultiFilters, TestSize.Level1)
 {
     struct HdfTestMsg msg = {TEST_PAL_CAN_TYPE, CAN_TEST_ADD_MULTI_FILTER, -1};
     EXPECT_EQ(0, HdfTestSendMsgToService(&msg));