diff options
Diffstat (limited to 'drivers/net/wireless/mwifiex/pcie.c')
| -rw-r--r-- | drivers/net/wireless/mwifiex/pcie.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/drivers/net/wireless/mwifiex/pcie.c b/drivers/net/wireless/mwifiex/pcie.c index ff0545888dd0..27c2bf860709 100644 --- a/drivers/net/wireless/mwifiex/pcie.c +++ b/drivers/net/wireless/mwifiex/pcie.c @@ -1271,12 +1271,20 @@ static int mwifiex_pcie_process_recv_data(struct mwifiex_adapter *adapter) */ pkt_len = *((__le16 *)skb_data->data); rx_len = le16_to_cpu(pkt_len); - skb_put(skb_data, rx_len); - dev_dbg(adapter->dev, - "info: RECV DATA: Rd=%#x, Wr=%#x, Len=%d\n", - card->rxbd_rdptr, wrptr, rx_len); - skb_pull(skb_data, INTF_HEADER_LEN); - mwifiex_handle_rx_packet(adapter, skb_data); + if (WARN_ON(rx_len <= INTF_HEADER_LEN || + rx_len > MWIFIEX_RX_DATA_BUF_SIZE)) { + dev_err(adapter->dev, + "Invalid RX len %d, Rd=%#x, Wr=%#x\n", + rx_len, card->rxbd_rdptr, wrptr); + dev_kfree_skb_any(skb_data); + } else { + skb_put(skb_data, rx_len); + dev_dbg(adapter->dev, + "info: RECV DATA: Rd=%#x, Wr=%#x, Len=%d\n", + card->rxbd_rdptr, wrptr, rx_len); + skb_pull(skb_data, INTF_HEADER_LEN); + mwifiex_handle_rx_packet(adapter, skb_data); + } skb_tmp = dev_alloc_skb(MWIFIEX_RX_DATA_BUF_SIZE); if (!skb_tmp) { |