From: liuye <liuye@kylinos.cn>
To: shuah@kernel.org
Cc: akpm@linux-foundation.org, jeffxu@google.com,
isaacmanjarres@google.com, lorenzo.stoakes@oracle.com,
gthelen@google.com, sauravshah.31@gmail.com,
linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org,
liuye <liuye@kylinos.cn>
Subject: [PATCH] selftests/memfd/memfd_test: Fix possible NULL pointer dereference
Date: Tue, 14 Jan 2025 11:21:15 +0800 [thread overview]
Message-ID: <20250114032115.58638-1-liuye@kylinos.cn> (raw)
If name is NULL, a NULL pointer may be accessed in printf.
Signed-off-by: liuye <liuye@kylinos.cn>
---
tools/testing/selftests/memfd/memfd_test.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/memfd/memfd_test.c b/tools/testing/selftests/memfd/memfd_test.c
index c0c53451a16d..5b993924cc3f 100644
--- a/tools/testing/selftests/memfd/memfd_test.c
+++ b/tools/testing/selftests/memfd/memfd_test.c
@@ -171,7 +171,7 @@ static void mfd_fail_new(const char *name, unsigned int flags)
r = sys_memfd_create(name, flags);
if (r >= 0) {
printf("memfd_create(\"%s\", %u) succeeded, but failure expected\n",
- name, flags);
+ name ? name : "NULL", flags);
close(r);
abort();
}
--
2.25.1
next reply other threads:[~2025-01-14 3:21 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-01-14 3:21 liuye [this message]
2025-01-14 4:13 ` Andrew Morton
2025-01-14 11:10 ` Lorenzo Stoakes
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