ACK: [focal:azure-cvm][PATCH] UBUNTU: SAUCE: Drivers: hv: vmbus: Initialize request offers message for Isolation VM

[Joseph Salisbury]

Acked-by: Joseph Salisbury <joseph.salisbury at canonical.com>

On 1/7/22 16:06, Marcelo Henrique Cerri wrote:
> From: Juan Vazquez <juvazq at linux.microsoft.com>
>
> BugLink: https://bugs.launchpad.net/bugs/1956793
>
> 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 at linux.microsoft.com>
> Link: https://lore.kernel.org/r/20220105192746.23046-1-juvazq@linux.microsoft.com
> Signed-off-by: Wei Liu <wei.liu at kernel.org>
> (cherry picked from commit 6a27e396ebb149fc47baccc1957a7a9dd70049a7
>   from git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux.git)
> Signed-off-by: Marcelo Henrique Cerri <marcelo.cerri at canonical.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 454244385424..3bb86d9e1dff 100644
> --- a/drivers/hv/channel_mgmt.c
> +++ b/drivers/hv/channel_mgmt.c
> @@ -1525,7 +1525,7 @@ 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)