3.13-stable review patch. If anyone has any objections, please let me know. ------------------ From: Amitkumar Karwar <akarwar@xxxxxxxxxxx> commit bb8e6a1ee881d131e404f0f1f5e8dc9281002771 upstream. We may get a NULL pointer here if skb allocation for Rx packet was failed earlier. Signed-off-by: Amitkumar Karwar <akarwar@xxxxxxxxxxx> Signed-off-by: Bing Zhao <bzhao@xxxxxxxxxxx> Signed-off-by: John W. Linville <linville@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/net/wireless/mwifiex/pcie.c | 6 ++++++ 1 file changed, 6 insertions(+) --- a/drivers/net/wireless/mwifiex/pcie.c +++ b/drivers/net/wireless/mwifiex/pcie.c @@ -1211,6 +1211,12 @@ static int mwifiex_pcie_process_recv_dat rd_index = card->rxbd_rdptr & reg->rx_mask; skb_data = card->rx_buf_list[rd_index]; + /* If skb allocation was failed earlier for Rx packet, + * rx_buf_list[rd_index] would have been left with a NULL. + */ + if (!skb_data) + return -ENOMEM; + MWIFIEX_SKB_PACB(skb_data, &buf_pa); pci_unmap_single(card->dev, buf_pa, MWIFIEX_RX_DATA_BUF_SIZE, PCI_DMA_FROMDEVICE); -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html