linux-kernel - Re: [PATCH] tomoyo: Avoid potential null pointer access

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Message-ID: <dfb6829e-0fb6-7dbc-5dfa-9707b2f0ae16@huawei.com>
Date:   Fri, 27 Nov 2020 15:17:12 +0800
From:   Zheng Zengkai <zhengzengkai@...wei.com>
To:     Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>
CC:     <linux-security-module@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <jmorris@...ei.org>,
        <serge@...lyn.com>, <weiyongjun1@...wei.com>
Subject: Re: [PATCH] tomoyo: Avoid potential null pointer access

Hello Tetsuo,
> On 2020/11/26 15:33, Zheng Zengkai wrote:
>> As your say,  I found the function tomoyo_assign_namespace( )
>>
>> in security/tomoyo/domain.c has the similar situation,
>>
>> Can I add __GFP_NOWARN for both and remove the null check for _entry_ in tomoyo_assign_namespace( )?
>>
> Good catch. Yes, please send as a patch.
> .

I have resent a patch, thanks!