netdev - Re: [tipc-discussion] [PATCH] tipc: fix potential null pointer dereference in the nla

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Date:	Sat, 11 Jun 2016 10:32:33 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	erik.hugne@...il.com
Cc:	tipc-discussion@...ts.sourceforge.net, sploving1@...il.com,
	jon.maloy@...csson.com, netdev@...r.kernel.org,
	ying.xue@...driver.com
Subject: Re: [tipc-discussion] [PATCH] tipc: fix potential null pointer
 dereference in the nla_data function

From: Erik Hugne <erik.hugne@...il.com>
Date: Sat, 11 Jun 2016 09:46:32 +0200

> On Jun 11, 2016 08:24, "David Miller" <davem@...emloft.net> wrote:
>>
>> From: Baozeng Ding <sploving1@...il.com>
>> Date: Fri, 10 Jun 2016 10:26:59 +0800
>>
>> > Before calling the nla_data function, make sure the argument is not
> null.
>> > Fix potential null pointer dereference vulnerability for this.
>> >
>> > Signed-off-by: Baozeng Ding <sploving1@...il.com>
>>
>> TIPC maintainers, please review.
>>
> 
> Nak, nlattrs does not come from userspace in the compat layer, it just
> translates to the legacy TLV thing.
> 
> //E

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Please don't do that in the future, thanks.