From 15845cbcd12a571869c6703892427f9e5839d5fb Mon Sep 17 00:00:00 2001 From: Christian Brauner Date: Fri, 28 May 2021 11:24:17 +0200 Subject: [PATCH] test: add openat2() test for invalid upper 32 bit flag value Test that openat2() rejects unknown flags in the upper 32 bit range. Link: https://lore.kernel.org/r/20210528092417.3942079-4-brauner@kernel.org Cc: Richard Guy Briggs Cc: Aleksa Sarai Cc: linux-fsdevel@vger.kernel.org Reviewed-by: Richard Guy Briggs Signed-off-by: Christian Brauner --- tools/testing/selftests/openat2/openat2_test.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/openat2/openat2_test.c b/tools/testing/selftests/openat2/openat2_test.c index 381d874..d7ec1e7 100644 --- a/tools/testing/selftests/openat2/openat2_test.c +++ b/tools/testing/selftests/openat2/openat2_test.c @@ -155,7 +155,7 @@ struct flag_test { int err; }; -#define NUM_OPENAT2_FLAG_TESTS 24 +#define NUM_OPENAT2_FLAG_TESTS 25 void test_openat2_flags(void) { @@ -229,6 +229,11 @@ void test_openat2_flags(void) { .name = "invalid how.resolve and O_PATH", .how.flags = O_PATH, .how.resolve = 0x1337, .err = -EINVAL }, + + /* currently unknown upper 32 bit rejected. */ + { .name = "currently unknown bit (1 << 63)", + .how.flags = O_RDONLY | (1ULL << 63), + .how.resolve = 0, .err = -EINVAL }, }; BUILD_BUG_ON(ARRAY_LEN(tests) != NUM_OPENAT2_FLAG_TESTS); -- 2.7.4