netdev - Re: [PATCH net-next 6/6] sched: Eliminate use of flow_keys in sch

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20150301.230641.1074652099437388601.davem@davemloft.net>
Date:	Sun, 01 Mar 2015 23:06:41 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	therbert@...gle.com, netdev@...r.kernel.org, fw@...len.de
Subject: Re: [PATCH net-next 6/6] sched: Eliminate use of flow_keys in
 sch_sfq

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Sun, 01 Mar 2015 16:58:52 -0800

> On Sun, 2015-03-01 at 14:09 -0800, Tom Herbert wrote:
>> Call qdisc_skb_get_hash instead of doing skb_flow_dissect and then
>> jhash by hand.
> 
> This defeats one of the perturbation goal :
> 
> If two flows hashes into same hash, then skb_get_hash_perturb(skb,
> q->perturbation) will also give same hash forever and map to same hash
> bucket.

Yes, this needs to be resolved.
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html