Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (27 commits)
  slcan: fix ldisc->open retval
  net/usb: mark LG VL600 LTE modem ethernet interface as WWAN
  xfrm: Don't allow esn with disabled anti replay detection
  xfrm: Assign the inner mode output function to the dst entry
  net: dev_close() should check IFF_UP
  vlan: fix GVRP at dismantle time
  netfilter: revert a2361c8735e07322023aedc36e4938b35af31eb0
  netfilter: IPv6: fix DSCP mangle code
  netfilter: IPv6: initialize TOS field in REJECT target module
  IPVS: init and cleanup restructuring
  IPVS: Change of socket usage to enable name space exit.
  netfilter: ebtables: only call xt_compat_add_offset once per rule
  netfilter: fix ebtables compat support
  netfilter: ctnetlink: fix timestamp support for new conntracks
  pch_gbe: support ML7223 IOH
  PCH_GbE : Fixed the issue of checksum judgment
  PCH_GbE : Fixed the issue of collision detection
  NET: slip, fix ldisc->open retval
  be2net: Fixed bugs related to PVID.
  ehea: fix wrongly reported speed and port
  ...

1 files changed, 2 insertions, 0 deletions

diff --git a/net/dccp/options.c b/net/dccp/options.c
index f06ffcfc8d7..4b2ab657ac8 100644
--- a/net/dccp/options.c
+++ b/net/dccp/options.c
@@ -123,6 +123,8 @@ int dccp_parse_options(struct sock *sk, struct dccp_request_sock *dreq,
                 case DCCPO_CHANGE_L ... DCCPO_CONFIRM_R:
                         if (pkt_type == DCCP_PKT_DATA)      /* RFC 4340, 6 */
                                 break;
+                        if (len == 0)
+                                goto out_invalid_option;
                         rc = dccp_feat_parse_options(sk, dreq, mandatory, opt,
                                                     *value, value + 1, len - 1);
                         if (rc)