af_packet: do not accept mc address smaller then dev->addr_len in packet_mc_add() · 914c8ad2d1 - Gogs

af_packet: do not accept mc address smaller then dev->addr_len in packet_mc_add()

There is no point of accepting an address of smaller length than dev->addr_len
here. Therefore change this for stonger check.

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Jiri Pirko 15 years ago

parent

2a3f279034

commit

914c8ad2d1

1 changed files with 1 additions and 1 deletions

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							+ 1
							
							- 1
						
net/packet/af_packet.c
							 
								View File
							
				@@ -1734,7 +1734,7 @@ static int packet_mc_add(struct sock *sk, struct packet_mreq_max *mreq)
			
				 		goto done;
			
				 	err = -EINVAL;
			
				-	if (mreq->mr_alen > dev->addr_len)
			
				+	if (mreq->mr_alen != dev->addr_len)
			
				 		goto done;
			
				 	err = -ENOBUFS;