[libvirt] [PATCH 2/3] Ensure RPC message is cleared before being reused
Eric Blake
eblake at redhat.com
Thu Jun 30 15:16:05 UTC 2011
On 06/30/2011 05:29 AM, Daniel P. Berrange wrote:
> To save on memory reallocation, virNetMessage instances that
> have been transmitted, may be reused for a subsequent incoming
> message. We forgot to clear out the old data of the message
> fully, which caused later confusion upon read.
>
> * src/rpc/virnetserverclient.c: memset entire message before
> reusing it
> ---
> src/rpc/virnetserverclient.c | 1 +
> 1 files changed, 1 insertions(+), 0 deletions(-)
>
> diff --git a/src/rpc/virnetserverclient.c b/src/rpc/virnetserverclient.c
> index aac4c3c..5c23cf2 100644
> --- a/src/rpc/virnetserverclient.c
> +++ b/src/rpc/virnetserverclient.c
> @@ -837,6 +837,7 @@ virNetServerClientDispatchWrite(virNetServerClientPtr client)
> client->nrequests < client->nrequests_max) {
> /* Ready to recv more messages */
> client->rx = msg;
> + memset(client->rx, 0, sizeof(*client->rx));
> client->rx->bufferLength = VIR_NET_MESSAGE_LEN_MAX;
ACK.
--
Eric Blake eblake at redhat.com +1-801-349-2682
Libvirt virtualization library http://libvirt.org
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