diff --git a/security/apparmor/policy_unpack_test.c b/security/apparmor/policy_unpack_test.c
index c64733d6c98f..f070902da8fc 100644
--- a/security/apparmor/policy_unpack_test.c
+++ b/security/apparmor/policy_unpack_test.c
@@ -281,6 +281,8 @@ static void policy_unpack_test_unpack_strdup_with_null_name(struct kunit *test)
 			   ((uintptr_t)puf->e->start <= (uintptr_t)string)
 			   && ((uintptr_t)string <= (uintptr_t)puf->e->end));
 	KUNIT_EXPECT_STREQ(test, string, TEST_STRING_DATA);
+
+	kfree(string);
 }
 
 static void policy_unpack_test_unpack_strdup_with_name(struct kunit *test)
@@ -296,6 +298,8 @@ static void policy_unpack_test_unpack_strdup_with_name(struct kunit *test)
 			   ((uintptr_t)puf->e->start <= (uintptr_t)string)
 			   && ((uintptr_t)string <= (uintptr_t)puf->e->end));
 	KUNIT_EXPECT_STREQ(test, string, TEST_STRING_DATA);
+
+	kfree(string);
 }
 
 static void policy_unpack_test_unpack_strdup_out_of_bounds(struct kunit *test)
@@ -313,6 +317,8 @@ static void policy_unpack_test_unpack_strdup_out_of_bounds(struct kunit *test)
 	KUNIT_EXPECT_EQ(test, size, 0);
 	KUNIT_EXPECT_NULL(test, string);
 	KUNIT_EXPECT_PTR_EQ(test, puf->e->pos, start);
+
+	kfree(string);
 }
 
 static void policy_unpack_test_unpack_nameX_with_null_name(struct kunit *test)