Re: Linux 4.4.34

From: Andre Noll
Date: Tue Nov 22 2016 - 12:57:56 EST


On Tue, Nov 22, 09:14, Eric Dumazet wrote
> We definitely want to fix the real bug, not working around it.
>
> Seems an aliasing problem, key_control and key_basic might point to
> adjacent memory
> and a barrier() would solve the issue as well.

This was also my first idea. I added some printk statements
which confirmed that key_basic->n_proto, key_basic->ip_proto and
key_control->thoff were indeed close to each other. They did not
overlap though.

Hope this helps
Andre
--
Max Planck Institute for Developmental Biology
SpemannstraÃe 35, 72076 TÃbingen, Germany. Phone: (+49) 7071 601 829
http://people.tuebingen.mpg.de/maan/

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