tree 8c8fefac30fa372f4e04c6a9f8ceed6569f55570
parent 948b6bef7f9cf841a98fe3ea40419696500c8c4c
author David Lamparter <equinox@opensourcerouting.org> 1336475745 +0200
committer David Lamparter <equinox@opensourcerouting.org> 1351185359 -0700

isisd: don't process invalid prefixes from TLVs

it's possible to feed invalid prefixes (1.2.3.4/40 or dead::beef/200) on
IS-IS.  if this is not checked, it will later cause an assert in
processing.  let's simply abort processing the TLV if the prefix is
invalid.

  * isisd/isis_tlv.c: check prefix lengths for validity

Signed-off-by: David Lamparter <equinox@opensourcerouting.org>