Re: [PATCH v6 01/12] fs/exec: make __set_task_comm always set a nul ternimated string

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To: Yafang Shao <laoar.shao@xxxxxxxxx>
Subject: Re: [PATCH v6 01/12] fs/exec: make __set_task_comm always set a nul ternimated string
From: Kees Cook <keescook@xxxxxxxxxxxx>
Date: Mon, 25 Oct 2021 14:07:33 -0700
Cc: akpm@xxxxxxxxxxxxxxxxxxxx, rostedt@xxxxxxxxxxx, mathieu.desnoyers@xxxxxxxxxxxx, arnaldo.melo@xxxxxxxxx, pmladek@xxxxxxxx, peterz@xxxxxxxxxxxxx, viro@xxxxxxxxxxxxxxxxxx, valentin.schneider@xxxxxxx, qiang.zhang@xxxxxxxxxxxxx, robdclark@xxxxxxxxxxxx, christian@xxxxxxxxxx, dietmar.eggemann@xxxxxxx, mingo@xxxxxxxxxx, juri.lelli@xxxxxxxxxx, vincent.guittot@xxxxxxxxxx, davem@xxxxxxxxxxxxx, kuba@xxxxxxxxxx, ast@xxxxxxxxxx, daniel@xxxxxxxxxxxxx, andrii@xxxxxxxxxx, kafai@xxxxxx, songliubraving@xxxxxx, yhs@xxxxxx, john.fastabend@xxxxxxxxx, kpsingh@xxxxxxxxxx, dennis.dalessandro@xxxxxxxxxxxxxxxxxxxx, mike.marciniszyn@xxxxxxxxxxxxxxxxxxxx, dledford@xxxxxxxxxx, jgg@xxxxxxxx, linux-rdma@xxxxxxxxxxxxxxx, netdev@xxxxxxxxxxxxxxx, bpf@xxxxxxxxxxxxxxx, linux-perf-users@xxxxxxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, oliver.sang@xxxxxxxxx, lkp@xxxxxxxxx, Andrii Nakryiko <andrii.nakryiko@xxxxxxxxx>
In-reply-to: <20211025083315.4752-2-laoar.shao@gmail.com>
References: <20211025083315.4752-1-laoar.shao@gmail.com> <20211025083315.4752-2-laoar.shao@gmail.com>

On Mon, Oct 25, 2021 at 08:33:04AM +0000, Yafang Shao wrote:
> Make sure the string set to task comm is always nul ternimated.

typo nit: "terminated"

> 
> Signed-off-by: Yafang Shao <laoar.shao@xxxxxxxxx>

Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>

-- 
Kees Cook

Follow-Ups:
- Re: [PATCH v6 01/12] fs/exec: make __set_task_comm always set a nul ternimated string
  - From: Yafang Shao

References:
- [PATCH v6 00/12] extend task comm from 16 to 24
  - From: Yafang Shao
- [PATCH v6 01/12] fs/exec: make __set_task_comm always set a nul ternimated string
  - From: Yafang Shao

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