Test invalid out of range character handling in UTF8_getc()

Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Norbert Pocs <norbertp@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/29119)

(cherry picked from commit 3595339b6901d9880282168eca75773080969c38)

diff --git a/test/asn1_internal_test.c b/test/asn1_internal_test.c
index 3c2222d988dfb66f6e369bbc2e671aa49c9735d4..803c1593877d8e253d204789dc7cbde654b3f198 100644 (file)
--- a/test/asn1_internal_test.c
+++ b/test/asn1_internal_test.c
@@ -190,6 +190,16 @@ static int test_unicode_range(void)
     return ok;
 }
 
+static int test_invalid_utf8(void)
+{
+    const unsigned char inv_utf8[] = "\xF4\x90\x80\x80";
+    unsigned long val;
+
+    if (!TEST_int_lt(UTF8_getc(inv_utf8, sizeof(inv_utf8), &val), 0))
+        return 0;
+    return 1;
+}
+
 /**********************************************************************
  *
  * Tests of object creation
@@ -270,6 +280,7 @@ int setup_tests(void)
     ADD_TEST(test_standard_methods);
     ADD_TEST(test_empty_nonoptional_content);
     ADD_TEST(test_unicode_range);
+    ADD_TEST(test_invalid_utf8);
     ADD_TEST(test_obj_create);
     ADD_TEST(test_obj_nid_undef);
     return 1;