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| author | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2017-06-17 17:01:11 +0200 |
|---|---|---|
| committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2017-06-17 17:01:11 +0200 |
| commit | c1d5fe2d54551b95b812143d94d8168da2220dd8 (patch) | |
| tree | fdde4472ab2b19fcadaae22d68a0c9b008f74373 /net/tipc/udp_media.c | |
| parent | 0068a1b36d309f22698f7de7478b72e672360129 (diff) | |
| parent | 1bd30958ec55d80ca72d2ca4e7e5c3d9fbf3173e (diff) | |
Merge tag 'v4.4.73' into toradex_vf_4.4-nextColibri-VF_LXDE-Image_2.7b3-20170630
This is the 4.4.73 stable release
Diffstat (limited to 'net/tipc/udp_media.c')
| -rw-r--r-- | net/tipc/udp_media.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/net/tipc/udp_media.c b/net/tipc/udp_media.c index 6af78c6276b4..78d6b78de29d 100644 --- a/net/tipc/udp_media.c +++ b/net/tipc/udp_media.c @@ -52,7 +52,7 @@ /* IANA assigned UDP port */ #define UDP_PORT_DEFAULT 6118 -#define UDP_MIN_HEADROOM 28 +#define UDP_MIN_HEADROOM 48 static const struct nla_policy tipc_nl_udp_policy[TIPC_NLA_UDP_MAX + 1] = { [TIPC_NLA_UDP_UNSPEC] = {.type = NLA_UNSPEC}, @@ -376,6 +376,11 @@ static int tipc_udp_enable(struct net *net, struct tipc_bearer *b, udp_conf.local_ip.s_addr = htonl(INADDR_ANY); udp_conf.use_udp_checksums = false; ub->ifindex = dev->ifindex; + if (tipc_mtu_bad(dev, sizeof(struct iphdr) + + sizeof(struct udphdr))) { + err = -EINVAL; + goto err; + } b->mtu = dev->mtu - sizeof(struct iphdr) - sizeof(struct udphdr); #if IS_ENABLED(CONFIG_IPV6) |