[ovs-git] [openvswitch/ovs] 692086: odp-util: Use flexible sized buffer to hold Geneve...

[GitHub]

  Branch: refs/heads/branch-2.5
  Home:   https://github.com/openvswitch/ovs
  Commit: 692086c5a2570b1ee2a5978969ee49ec38eb2e6a
      https://github.com/openvswitch/ovs/commit/692086c5a2570b1ee2a5978969ee49ec38eb2e6a
  Author: Ben Pfaff <blp at ovn.org>
  Date:   2017-12-22 (Fri, 22 Dec 2017)

  Changed paths:
    M lib/odp-util.c

  Log Message:
  -----------
  odp-util: Use flexible sized buffer to hold Geneve options.

The 'mask' buffer in parse_odp_action() is supposed to always be big
enough:
  /* 'mask' is big enough to hold any key. */

Geneve options can be really big and the comment was wrong.  In addition,
the user might supply more options than can really fit in any case, so
we might as well just use a stub.

Found by libfuzzer.

Reported-by: Bhargava Shastry <bshastry at sec.t-labs.tu-berlin.de>
Signed-off-by: Ben Pfaff <blp at ovn.org>