[ovs-git] [openvswitch/ovs] fbe37f: ofp-group: Don't assert-fail decoding bad OF1.5 gr...

[GitHub]

  Branch: refs/heads/branch-2.6
  Home:   https://github.com/openvswitch/ovs
  Commit: fbe37f3ccc819a044a500fb5da13d3e53596c2a7
      https://github.com/openvswitch/ovs/commit/fbe37f3ccc819a044a500fb5da13d3e53596c2a7
  Author: Ben Pfaff <blp at ovn.org>
  Date:   2018-07-06 (Fri, 06 Jul 2018)

  Changed paths:
    M lib/ofp-util.c

  Log Message:
  -----------
  ofp-group: Don't assert-fail decoding bad OF1.5 group mod type or command.

When decoding a group mod, the current code validates the group type and
command after the whole group mod has been decoded.  The OF1.5 decoder,
however, tries to use the type and command earlier, when it might still be
invalid.  This caused an assertion failure (via OVS_NOT_REACHED).  This
commit fixes the problem.

ovs-vswitchd does not enable support for OpenFlow 1.5 by default.

Reported-at: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9249
Signed-off-by: Ben Pfaff <blp at ovn.org>
Reviewed-by: Yifeng Sun <pkusunyifeng at gmail.com>



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