TWxSoftware/twx-linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

net: bcmgenet: Add a check for oversized packets

Browse Source 
[ Upstream commit 5c0862c2c9 ]

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: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Florian Fainelli
2023-01-26 16:08:19 -08:00
committed by Greg Kroah-Hartman
parent 1fc9760afd
commit 8418813205
1 changed files with 8 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/net/ethernet/broadcom/genet/bcmgenet.c
+8
View File
@@ -2263,6 +2263,14 @@ 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");