netdev - Re: [PATCH] ipv6/addrlabel: fix ip6addrlbl

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Message-ID: <56790406.5080206@miraclelinux.com>
Date:	Tue, 22 Dec 2015 17:04:22 +0900
From:	YOSHIFUJI Hideaki <hideaki.yoshifuji@...aclelinux.com>
To:	Andrey Ryabinin <aryabinin@...tuozzo.com>,
	"David S. Miller" <davem@...emloft.net>
Cc:	Cong Wang <cwang@...pensource.com>,
	hideaki.yoshifuji@...aclelinux.com,
	Alexey Kuznetsov <kuznet@....inr.ac.ru>,
	James Morris <jmorris@...ei.org>,
	Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
	Patrick McHardy <kaber@...sh.net>,
	netdev <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ipv6/addrlabel: fix ip6addrlbl_get()

Cong Wang wrote:
> On Mon, Dec 21, 2015 at 1:54 AM, Andrey Ryabinin
> <aryabinin@...tuozzo.com> wrote:
>> ip6addrlbl_get() has never worked. If ip6addrlbl_hold() succeeded,
>> ip6addrlbl_get() will exit with '-ESRCH'. If ip6addrlbl_hold() failed,
>> ip6addrlbl_get() will use about to be free ip6addrlbl_entry pointer.
>>
>> Fix this by inverting ip6addrlbl_hold() check.
>>
>> Fixes: 2a8cc6c89039 ("[IPV6] ADDRCONF: Support RFC3484 configurable address selection policy table.")
>> Signed-off-by: Andrey Ryabinin <aryabinin@...tuozzo.com>
> 
> Good catch!
> 
> Reviewed-by: Cong Wang <cwang@...pensource.com>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@...ux-ipv6.org>

-- 
Hideaki Yoshifuji <hideaki.yoshifuji@...aclelinux.com>
Technical Division, MIRACLE LINUX CORPORATION
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