diff options
Diffstat (limited to 'drivers/usb/gadget/function/rndis.c')
| -rw-r--r-- | drivers/usb/gadget/function/rndis.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/usb/gadget/function/rndis.c b/drivers/usb/gadget/function/rndis.c index 431d5a7d737e..b7ccf1803656 100644 --- a/drivers/usb/gadget/function/rndis.c +++ b/drivers/usb/gadget/function/rndis.c @@ -637,14 +637,17 @@ static int rndis_set_response(struct rndis_params *params, rndis_set_cmplt_type *resp; rndis_resp_t *r; + BufLength = le32_to_cpu(buf->InformationBufferLength); + BufOffset = le32_to_cpu(buf->InformationBufferOffset); + if ((BufLength > RNDIS_MAX_TOTAL_SIZE) || + (BufOffset + 8 >= RNDIS_MAX_TOTAL_SIZE)) + return -EINVAL; + r = rndis_add_response(params, sizeof(rndis_set_cmplt_type)); if (!r) return -ENOMEM; resp = (rndis_set_cmplt_type *)r->buf; - BufLength = le32_to_cpu(buf->InformationBufferLength); - BufOffset = le32_to_cpu(buf->InformationBufferOffset); - #ifdef VERBOSE_DEBUG pr_debug("%s: Length: %d\n", __func__, BufLength); pr_debug("%s: Offset: %d\n", __func__, BufOffset); |