diff options
Diffstat (limited to 'net/packet')
| -rw-r--r-- | net/packet/af_packet.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 031a5e6fb4a..243946d4809 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -60,6 +60,7 @@ #include <linux/wireless.h> #include <linux/kernel.h> #include <linux/kmod.h> +#include <linux/slab.h> #include <net/net_namespace.h> #include <net/ip.h> #include <net/protocol.h> @@ -1688,6 +1689,8 @@ static int packet_dev_mc(struct net_device *dev, struct packet_mclist *i, { switch (i->type) { case PACKET_MR_MULTICAST: + if (i->alen != dev->addr_len) + return -EINVAL; if (what > 0) return dev_mc_add(dev, i->addr, i->alen, 0); else @@ -1700,6 +1703,8 @@ static int packet_dev_mc(struct net_device *dev, struct packet_mclist *i, return dev_set_allmulti(dev, what); break; case PACKET_MR_UNICAST: + if (i->alen != dev->addr_len) + return -EINVAL; if (what > 0) return dev_unicast_add(dev, i->addr); else @@ -1734,7 +1739,7 @@ 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; @@ -2164,8 +2169,6 @@ static int packet_ioctl(struct socket *sock, unsigned int cmd, case SIOCGIFDSTADDR: case SIOCSIFDSTADDR: case SIOCSIFFLAGS: - if (!net_eq(sock_net(sk), &init_net)) - return -ENOIOCTLCMD; return inet_dgram_ops.ioctl(sock, cmd, arg); #endif |