From: Juan Vazquez <juvazq@linux.microsoft.com>
To: kys@microsoft.com, haiyangz@microsoft.com,
sthemmin@microsoft.com, wei.liu@kernel.org, decui@microsoft.com,
mikelley@microsoft.com
Cc: linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] Drivers: hv: vmbus: Initialize request offers message for Isolation VM
Date: Wed, 5 Jan 2022 11:27:46 -0800 [thread overview]
Message-ID: <20220105192746.23046-1-juvazq@linux.microsoft.com> (raw)
Initialize memory of request offers message to be sent to the host so
padding or uninitialized fields do not leak guest memory contents.
Signed-off-by: Juan Vazquez <juvazq@linux.microsoft.com>
---
drivers/hv/channel_mgmt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index 2829575fd9b7..60375879612f 100644
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -1554,7 +1554,7 @@ int vmbus_request_offers(void)
struct vmbus_channel_msginfo *msginfo;
int ret;
- msginfo = kmalloc(sizeof(*msginfo) +
+ msginfo = kzalloc(sizeof(*msginfo) +
sizeof(struct vmbus_channel_message_header),
GFP_KERNEL);
if (!msginfo)
--
2.32.0
next reply other threads:[~2022-01-05 19:28 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-05 19:27 Juan Vazquez [this message]
2022-01-05 20:39 ` [PATCH] Drivers: hv: vmbus: Initialize request offers message for Isolation VM Wei Liu
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