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greybus: svc: fix missing version-request sanity checks

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Add missing sanity checks on version-request payload size.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Johan Hovold 2015-11-19 18:28:01 +01:00 committed by Greg Kroah-Hartman
parent 87f6c976f4
commit 55510843c1
1 changed files with 8 additions and 0 deletions
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8
drivers/staging/greybus/svc.c
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@ -310,6 +310,14 @@ static int gb_svc_version_request(struct gb_operation *op)
struct gb_protocol_version_request *request;
struct gb_protocol_version_response *response;
if (op->request->payload_size < sizeof(*request)) {
pr_err("%d: short version request (%zu < %zu)\n",
connection->intf_cport_id,
op->request->payload_size,
sizeof(*request));
return -EINVAL;
}
request = op->request->payload;
if (request->major > GB_SVC_VERSION_MAJOR) {