diff options
| -rw-r--r-- | net/packet/af_packet.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 6655793765b2..5dda263b4a0a 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -2627,6 +2627,8 @@ static int tpacket_snd(struct packet_sock *po, struct msghdr *msg) proto = saddr->sll_protocol; addr = saddr->sll_addr; dev = dev_get_by_index(sock_net(&po->sk), saddr->sll_ifindex); + if (addr && dev && saddr->sll_halen < dev->addr_len) + goto out; } err = -ENXIO; @@ -2825,6 +2827,8 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len) proto = saddr->sll_protocol; addr = saddr->sll_addr; dev = dev_get_by_index(sock_net(sk), saddr->sll_ifindex); + if (addr && dev && saddr->sll_halen < dev->addr_len) + goto out; } err = -ENXIO; |