linux-kernel - Re: [PATCH v2 4/4] kernel/kthread: show a warning if kthread's comm is truncated

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Message-ID: <202110070801.C425A092@keescook>
Date:   Thu, 7 Oct 2021 08:01:48 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Yafang Shao <laoar.shao@...il.com>
Cc:     pmladek@...e.com, viro@...iv.linux.org.uk,
        akpm@...ux-foundation.org, peterz@...radead.org,
        valentin.schneider@....com, mathieu.desnoyers@...icios.com,
        qiang.zhang@...driver.com, robdclark@...omium.org,
        christian@...uner.io, dietmar.eggemann@....com, mingo@...hat.com,
        juri.lelli@...hat.com, vincent.guittot@...aro.org,
        rostedt@...dmis.org, bsegall@...gle.com, mgorman@...e.de,
        bristot@...hat.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 4/4] kernel/kthread: show a warning if kthread's comm
 is truncated

On Thu, Oct 07, 2021 at 12:07:52PM +0000, Yafang Shao wrote:
> Show a warning if task comm is truncated. Below is the result
> of my test case:
> 
> truncated kthread comm:I-am-a-kthread-with-lon, pid:14 by 6 characters
> 
> Suggtested-by: Petr Mladek <pmladek@...e.com>
> Signed-off-by: Yafang Shao <laoar.shao@...il.com>

I like that we get a warning now. :)

Reviewed-by: Kees Cook <keescook@...omium.org>

-- 
Kees Cook