[RFC PATCH 4/6] hv_sock: Initialize send_buf in hvs_stream_enqueue()

[Andrea Parri (Microsoft)]

So that padding or uninitialized bytes can't leak guest memory contents.

Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@xxxxxxxxx>
---
 net/vmw_vsock/hyperv_transport.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/vmw_vsock/hyperv_transport.c b/net/vmw_vsock/hyperv_transport.c
index 092cadc2c866d..72ce00928c8e7 100644
--- a/net/vmw_vsock/hyperv_transport.c
+++ b/net/vmw_vsock/hyperv_transport.c
@@ -655,7 +655,7 @@ static ssize_t hvs_stream_enqueue(struct vsock_sock *vsk, struct msghdr *msg,
 
 	BUILD_BUG_ON(sizeof(*send_buf) != HV_HYP_PAGE_SIZE);
 
-	send_buf = kmalloc(sizeof(*send_buf), GFP_KERNEL);
+	send_buf = kzalloc(sizeof(*send_buf), GFP_KERNEL);
 	if (!send_buf)
 		return -ENOMEM;
 
-- 
2.25.1