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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-08-10 09:07:25 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-08-10 09:07:25 -0700 |
| commit | f70d6318320983a8d2fac28cfe8d22dfd5e52a73 (patch) | |
| tree | e3a427a3abeca491007f036b09be84944657f58e /net/packet/af_packet.c | |
| parent | b963e7223cb3278dda35a6550a8df08ff2be2ee5 (diff) | |
| parent | f7644cbfcdf03528f0f450f3940c4985b2291f49 (diff) | |
| download | linux-stable-f70d6318320983a8d2fac28cfe8d22dfd5e52a73.tar.gz linux-stable-f70d6318320983a8d2fac28cfe8d22dfd5e52a73.tar.bz2 linux-stable-f70d6318320983a8d2fac28cfe8d22dfd5e52a73.zip | |
Merge 4.2-rc6 into staging-next
We want the IIO and staging fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/packet/af_packet.c')
| -rw-r--r-- | net/packet/af_packet.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index c9e8741226c6..ed458b315ef4 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -2403,7 +2403,8 @@ static int tpacket_snd(struct packet_sock *po, struct msghdr *msg) } tp_len = tpacket_fill_skb(po, skb, ph, dev, size_max, proto, addr, hlen); - if (tp_len > dev->mtu + dev->hard_header_len) { + if (likely(tp_len >= 0) && + tp_len > dev->mtu + dev->hard_header_len) { struct ethhdr *ehdr; /* Earlier code assumed this would be a VLAN pkt, * double-check this now that we have the actual @@ -2784,7 +2785,7 @@ static int packet_release(struct socket *sock) static int packet_do_bind(struct sock *sk, struct net_device *dev, __be16 proto) { struct packet_sock *po = pkt_sk(sk); - const struct net_device *dev_curr; + struct net_device *dev_curr; __be16 proto_curr; bool need_rehook; @@ -2808,15 +2809,13 @@ static int packet_do_bind(struct sock *sk, struct net_device *dev, __be16 proto) po->num = proto; po->prot_hook.type = proto; - - if (po->prot_hook.dev) - dev_put(po->prot_hook.dev); - po->prot_hook.dev = dev; po->ifindex = dev ? dev->ifindex : 0; packet_cached_dev_assign(po, dev); } + if (dev_curr) + dev_put(dev_curr); if (proto == 0 || !need_rehook) goto out_unlock; |