netdev - Re: [PATCH 5/10] [NET]: Avoid unnecessary cloning for ingress filtering

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]

Date:	Mon, 15 Oct 2007 18:55:27 +0400
From:	Alexey Kuznetsov <kuznet@....inr.ac.ru>
To:	jamal <hadi@...erus.ca>
Cc:	Herbert Xu <herbert@...dor.apana.org.au>,
	Patrick McHardy <kaber@...sh.net>,
	David Miller <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: [PATCH 5/10] [NET]: Avoid unnecessary cloning for ingress filtering

Hello!

> If it is causing trouble, then one idea would be to move the resetting
> to a wrapper function which calls clone first and then resets the other
> fields. All actions currently cloning would need to be mod-ed to use
> that call.

I see not so many places inside net/sched/act* where skb_clone is used.
Exactly one in act_mirred.c, to be more exact. Did I miss something?

If you mean that place, your suggestion is correct and everything is OK.

But if there is at least one place where an external skb_clone()
should do this... this cannot be correct. Tell me, it does not matter
what some random skb_clone() makes with tc_verd, please. :-)

Alexey
-
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