Port of 2.2.x AF_PACKET bug fix.

d2887e3c · Alexey Kuznetsov · David S. Miller · 00d67c5a · d2887e3c
Commit d2887e3c authored Mar 19, 2002 by Alexey Kuznetsov Committed by David S. Miller Mar 19, 2002
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net/packet/af_packet.c net/packet/af_packet.c +2 -0

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--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -358,6 +358,8 @@ static int packet_sendmsg_spkt(struct socket *sock, struct msghdr *msg, int len,
 	if (dev->hard_header) {
 		skb->data -= dev->hard_header_len;
 		skb->tail -= dev->hard_header_len;
+		if (len < dev->hard_header_len)
+			skb->nh.raw = skb->data;
 	}

 	/* Returns -EFAULT on error */