From: Juan Vazquez <juvazq@linux.microsoft.com>
Date: Wed, 5 Jan 2022 11:27:46 -0800
Patch-mainline: v5.17-rc1
Git-commit: 6a27e396ebb149fc47baccc1957a7a9dd70049a7
Subject: Drivers: hv: vmbus: Initialize request offers message for Isolation VM
References: bsc#1183682
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>
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Acked-by: Olaf Hering <ohering@suse.de>
---
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
--- 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)