[PATCH 6.8 031/158] selftests/tcp_ao: Zero-init tcp_ao_info_opt

Greg Kroah-Hartman
2024-04-23T21:41:23Z

From: Dmitry Safonov <0x7f454c46@gmail.com>

[ Upstream commit b089b3bead532419cdcbd8e4e0a3e23c49d11573 ]

The structure is on the stack and has to be zero-initialized as
the kernel checks for:
> if (in.reserved != 0 || in.reserved2 != 0)
> return -EINVAL;

Fixes: b26660531cf6 ("selftests/net: Add test for TCP-AO add setsockopt() command")
Signed-off-by: Dmitry Safonov <0x7f454c46@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/testing/selftests/net/tcp_ao/setsockopt-closed.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/tcp_ao/setsockopt-closed.c b/tools/testing/selftests/net/tcp_ao/setsockopt-closed.c
index 452de131fa3a9..517930f9721bd 100644
--- a/tools/testing/selftests/net/tcp_ao/setsockopt-closed.c
+++ b/tools/testing/selftests/net/tcp_ao/setsockopt-closed.c
@@ -21,7 +21,7 @@ static void make_listen(int sk)
static void test_vefify_ao_info(int sk, struct tcp_ao_info_opt *info,
const char *tst)
{
- struct tcp_ao_info_opt tmp;
+ struct tcp_ao_info_opt tmp = {};
socklen_t len = sizeof(tmp);

if (getsockopt(sk, IPPROTO_TCP, TCP_AO_INFO, &tmp, &len))
--
2.43.0