From: Andrey Zhizhikin andrey.zhizhikin@leica-geosystems.com
[ Upstream commit e56b3d94d939f52d46209b9e1b6700c5bfff3123 ]
MSFT ActiveSync implementation requires that the size of the response for incoming query is to be provided in the request input length. Failure to set the input size proper results in failed request transfer, where the ActiveSync counterpart reports the NDIS_STATUS_INVALID_LENGTH (0xC0010014L) error.
Set the input size for OID_GEN_PHYSICAL_MEDIUM query to the expected size of the response in order for the ActiveSync to properly respond to the request.
Fixes: 039ee17d1baa ("rndis_host: Add RNDIS physical medium checking into generic_rndis_bind()") Signed-off-by: Andrey Zhizhikin andrey.zhizhikin@leica-geosystems.com Link: https://lore.kernel.org/r/20210108095839.3335-1-andrey.zhizhikin@leica-geosy... Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/usb/rndis_host.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/usb/rndis_host.c +++ b/drivers/net/usb/rndis_host.c @@ -398,7 +398,7 @@ generic_rndis_bind(struct usbnet *dev, s reply_len = sizeof *phym; retval = rndis_query(dev, intf, u.buf, RNDIS_OID_GEN_PHYSICAL_MEDIUM, - 0, (void **) &phym, &reply_len); + reply_len, (void **)&phym, &reply_len); if (retval != 0 || !phym) { /* OID is optional so don't fail here. */ phym_unspec = cpu_to_le32(RNDIS_PHYSICAL_MEDIUM_UNSPECIFIED);