Commit 720e0d05 authored by Pan Bian's avatar Pan Bian Committed by Greg Kroah-Hartman
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rapidio/rionet: do not free skb before reading its length 



[ Upstream commit cfc43519 ]

skb is freed via dev_kfree_skb_any, however, skb->len is read then. This
may result in a use-after-free bug.

Fixes: e6161d64 ("rapidio/rionet: rework driver initialization and removal")
Signed-off-by: default avatarPan Bian <bianpan2016@163.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent f2a67e68

drivers/net/rionet.c

+1 −1
Original line number Diff line number Diff line
@@ -216,9 +216,9 @@ static int rionet_start_xmit(struct sk_buff *skb, struct net_device *ndev) 
			 * it just report sending a packet to the target

			 * (without actual packet transfer).

			 */

			dev_kfree_skb_any(skb);

			ndev->stats.tx_packets++;

			ndev->stats.tx_bytes += skb->len;

			dev_kfree_skb_any(skb);

		}

	}