diff options
| -rw-r--r-- | drivers/net/hyperv/rndis_filter.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c index 6ae43319ece6..9a51fa3003a8 100644 --- a/drivers/net/hyperv/rndis_filter.c +++ b/drivers/net/hyperv/rndis_filter.c @@ -1224,6 +1224,11 @@ int rndis_set_subchannel(struct net_device *ndev, return -EIO; } + /* Check that number of allocated sub channel is within the expected range */ + if (init_packet->msg.v5_msg.subchn_comp.num_subchannels > nvdev->num_chn - 1) { + netdev_err(ndev, "invalid number of allocated sub channel\n"); + return -EINVAL; + } nvdev->num_chn = 1 + init_packet->msg.v5_msg.subchn_comp.num_subchannels; |