linux-hardening - [PATCH 1/2] selftests/seccomp: Stop USER

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Date:   Wed,  3 Nov 2021 09:30:38 -0700
From:   Kees Cook <keescook@...omium.org>
To:     "Eric W. Biederman" <ebiederm@...ssion.com>
Cc:     Kees Cook <keescook@...omium.org>,
        Andy Lutomirski <luto@...capital.net>,
        Will Drewry <wad@...omium.org>,
        linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-hardening@...r.kernel.org
Subject: [PATCH 1/2] selftests/seccomp: Stop USER_NOTIF test if kcmp() fails

If kcmp() fails during the USER_NOTIF test, the test is likely to hang,
so switch from EXPECT to ASSERT.

Cc: Andy Lutomirski <luto@...capital.net>
Cc: Will Drewry <wad@...omium.org>
Cc: linux-kselftest@...r.kernel.org
Signed-off-by: Kees Cook <keescook@...omium.org>
---
 tools/testing/selftests/seccomp/seccomp_bpf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/seccomp/seccomp_bpf.c b/tools/testing/selftests/seccomp/seccomp_bpf.c
index 1d64891e6492..d999643d577c 100644
--- a/tools/testing/selftests/seccomp/seccomp_bpf.c
+++ b/tools/testing/selftests/seccomp/seccomp_bpf.c
@@ -4087,7 +4087,7 @@ TEST(user_notification_addfd)
 	 * lowest available fd to be assigned here.
 	 */
 	EXPECT_EQ(fd, nextfd++);
-	EXPECT_EQ(filecmp(getpid(), pid, memfd, fd), 0);
+	ASSERT_EQ(filecmp(getpid(), pid, memfd, fd), 0);
 
 	/*
 	 * This sets the ID of the ADD FD to the last request plus 1. The
-- 
2.30.2