A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-29 03:01:39 -04:00
Code Issues Projects Releases Packages Wiki Activity

lpc_eth: add missing ndo_change_mtu()

Browse source 
lpc_eth does a copy of transmitted skbs to DMA area, without checking
skb lengths, so can trigger buffer overflows :

memcpy(pldat->tx_buff_v + txidx * ENET_MAXF_SIZE, skb->data, len);

One way to get bigger skbs is to allow MTU changes above the 1500 limit.

Calling eth_change_mtu() in ndo_change_mtu() makes sure this cannot
happen.

Signed-off-by: Eric Dumazet <[email protected]>
Cc: Roland Stigge <[email protected]>
Cc: Kevin Wells <[email protected]>
Acked-by: Roland Stigge <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Eric Dumazet 2012-06-10 23:24:00 +00:00 • committed by David S. Miller
commit e30478598a
1 changed files with 1 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

1
drivers/net/ethernet/nxp/lpc_eth.c
View file

@ -1320,6 +1320,7 @@ static const struct net_device_ops lpc_netdev_ops = {
.ndo_set_rx_mode = lpc_eth_set_multicast_list,
.ndo_do_ioctl = lpc_eth_ioctl,
.ndo_set_mac_address = lpc_set_mac_address,
.ndo_change_mtu = eth_change_mtu,
};
static int lpc_eth_drv_probe(struct platform_device *pdev)