From: Eric Dumazet <eric.dumazet@gmail.com>
To: David Miller <davem@davemloft.net>
Cc: xiaosuo@gmail.com, kaber@trash.net, pablo@netfilter.org,
netfilter-devel@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: [PATCH] net: check the length of the data before dereferencing it
Date: Mon, 02 Apr 2012 05:58:25 +0200 [thread overview]
Message-ID: <1333339105.2325.6622.camel@edumazet-glaptop> (raw)
In-Reply-To: <20120401.235533.147910953675133023.davem@davemloft.net>
On Sun, 2012-04-01 at 23:55 -0400, David Miller wrote:
> From: Eric Dumazet <eric.dumazet@gmail.com>
> Date: Mon, 02 Apr 2012 05:45:45 +0200
>
> > Usually not a problem since we have many bytes after our head.
>
> We always have bytes after the head, it's guarenteed, and whether it's
> garbage bytes or skb_shared_info() it simply doesn't matter.
Then you have to add a kmemcheck_something() to make this clear and
avoid possible warnings.
next prev parent reply other threads:[~2012-04-02 3:58 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-02 3:10 [PATCH] net: check the length of the data before dereferencing it Changli Gao
2012-04-02 3:19 ` Eric Dumazet
2012-04-02 3:29 ` David Miller
2012-04-02 3:45 ` Changli Gao
2012-04-02 3:53 ` Eric Dumazet
2012-04-02 3:57 ` David Miller
2012-04-02 3:59 ` Eric Dumazet
2012-04-02 4:47 ` Changli Gao
2012-04-02 4:54 ` Eric Dumazet
2012-04-02 6:27 ` Changli Gao
2012-04-02 6:43 ` Eric Dumazet
2012-04-02 3:45 ` Eric Dumazet
2012-04-02 3:55 ` David Miller
2012-04-02 3:58 ` Eric Dumazet [this message]
2012-04-02 4:14 ` David Miller
2012-04-02 3:19 ` David Miller
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