netdev - Re: [PATCH net v2] cls_api.c: Fix dumping of non-existing actions' stats.

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:	Tue, 3 Feb 2015 10:10:20 -0800
From:	Cong Wang <cwang@...pensource.com>
To:	Ignacy Gawędzki 
	<ignacy.gawedzki@...en-communications.fr>,
	netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH net v2] cls_api.c: Fix dumping of non-existing actions' stats.

On Tue, Feb 3, 2015 at 10:05 AM, Ignacy Gawędzki
<ignacy.gawedzki@...en-communications.fr> wrote:
> In tcf_exts_dump_stats(), ensure that exts->actions is not empty before
> accessing the first element of that list and calling tcf_action_copy_stats()
> on it.  This fixes some random segvs when adding filters of type "basic" with
> no particular action.
>
> This also fixes the dumping of those "no-action" filters, which more often
> than not made calls to tcf_action_copy_stats() fail and consequently netlink
> attributes added by the caller to be removed by a call to nla_nest_cancel().
>
> Fixes: 33be62715991 ("net_sched: act: use standard struct list_head")
> Signed-off-by: Ignacy Gawędzki <ignacy.gawedzki@...en-communications.fr>

Acked-by: Cong Wang <cwang@...pensource.com>

Thanks!
--
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