On 04/10/2017 04:38 PM, Yuyang Du wrote:
> Hi Shuah,
>
> Could you please take a look at these patches? I got more patches
> that sit on these to send out.
Please bear with me. I was out sick most of last week. Still catching
up. Go ahead and send the patches, no need to wait.
>
> Thanks,
> Yuyang
>
> On Thu, Apr 06, 2017 at 06:03:24AM +0800, Yuyang Du wrote:
>> If we get nonpositive number of ports, there is no sense to
>> continue, then fail gracefully.
>>
>> In addition, the commit 0775a9cbc694e8c72 ("usbip: vhci extension:
>> modifications to vhci driver") introduced configurable numbers of
>> controllers and ports, but we have a static port number maximum,
>> MAXNPORT. If exceeded, the idev array will be overflown. We fix
>> it by validating the nports to make sure the port number max is
>> not exceeded.
>>
>> Signed-off-by: Yuyang Du <[email protected]>
Greg,
Could you please pick this up.
Acked-by: Shuah Khan <[email protected]>
thanks,
-- Shuah
>> ---
>> tools/usb/usbip/libsrc/vhci_driver.c | 10 +++++++++-
>> 1 file changed, 9 insertions(+), 1 deletion(-)
>>
>> diff --git a/tools/usb/usbip/libsrc/vhci_driver.c
>> b/tools/usb/usbip/libsrc/vhci_driver.c
>> index f659c14..151580a 100644
>> --- a/tools/usb/usbip/libsrc/vhci_driver.c
>> +++ b/tools/usb/usbip/libsrc/vhci_driver.c
>> @@ -220,9 +220,17 @@ int usbip_vhci_driver_open(void)
>> }
>>
>> vhci_driver->nports = get_nports();
>> -
>> dbg("available ports: %d", vhci_driver->nports);
>>
>> + if (vhci_driver->nports <=0) {
>> + err("no available ports");
>> + goto err;
>> + }
>> + else if (vhci_driver->nports > MAXNPORT) {
>> + err("port number exceeds %d", MAXNPORT);
>> + goto err;
>> + }
>> +
>> if (refresh_imported_device_list())
>> goto err;
>>
>> --
>> 2.7.4
>
>
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