[Olsr-users] BUG in mDNS plugin !!

[Henning Rogge]

Hello,

after some long debugging in Berlin we discovered a subtile bug in the mDNS 
plugin. The plugin does not align it's messages properly on a 4-byte boundary. 
This can cause non-x86 OLSR instances to fail at parsing the OLSR packet and 
create lots's of crazy effects like "10000+ 2-hop neighbors", "illegal HNA 
package sizes" and simple crashs (sometimes because no memory is left).

!!!!! I suggest anyone shutting down the plugin NOW !!!!!

until a patch is available (I send a proposed patch for the development tip to 
Saverio).

There is a fixed version of OLSRd in the stable repository which does drop the 
malformed packages, so you only loose some incoming messages which are in the 
same packet after the mDNS message.

http://gredler.at/hg/olsrd-0.5.6/rev/f26ff5628e52

Henning
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