Commit 5c0862c2 authored by Florian Fainelli's avatar Florian Fainelli Committed by David S. Miller
Browse files

net: bcmgenet: Add a check for oversized packets 



Occasionnaly we may get oversized packets from the hardware which
exceed the nomimal 2KiB buffer size we allocate SKBs with. Add an early
check which drops the packet to avoid invoking skb_over_panic() and move
on to processing the next packet.

Signed-off-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 468ba54b

drivers/net/ethernet/broadcom/genet/bcmgenet.c

+8 −0
Original line number Diff line number Diff line
@@ -2316,6 +2316,14 @@ static unsigned int bcmgenet_desc_rx(struct bcmgenet_rx_ring *ring, 
			  __func__, p_index, ring->c_index,

			  ring->read_ptr, dma_length_status);



		if (unlikely(len > RX_BUF_LENGTH)) {

			netif_err(priv, rx_status, dev, "oversized packet\n");

			dev->stats.rx_length_errors++;

			dev->stats.rx_errors++;

			dev_kfree_skb_any(skb);

			goto next;

		}



		if (unlikely(!(dma_flag & DMA_EOP) || !(dma_flag & DMA_SOP))) {

			netif_err(priv, rx_status, dev,

				  "dropping fragmented packet!\n");