Commit 914c8ad2 authored by Jiri Pirko's avatar Jiri Pirko Committed by David S. Miller
Browse files

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: default avatarJiri Pirko <jpirko@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 2a3f2790

net/packet/af_packet.c

+1 −1
Original line number Diff line number Diff line
@@ -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;