linux-kernel - Re: [PATCH] cgroup: limit max copied char length for cgroup file name

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Message-ID: <20171211150551.GC2421075@devbig577.frc2.facebook.com>
Date:   Mon, 11 Dec 2017 07:05:51 -0800
From:   Tejun Heo <tj@...nel.org>
To:     Ma Shimiao <mashimiao.fnst@...fujitsu.com>
Cc:     lizefan@...wei.com, cgroups@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] cgroup: limit max copied char length for cgroup file name

On Sat, Dec 09, 2017 at 01:47:58PM +0800, Ma Shimiao wrote:
> the result of cgroup_file_name will be used by kernfs_remove_name,
> and then by kernfs_remove_by_name_ns().
> If reached the max length, may have problem printed by WARN() in
> kernfs_remove_by_name_ns().
> 
> Signed-off-by: Ma Shimiao <mashimiao.fnst@...fujitsu.com>

Can we use strscpy() instead?

Thanks.

-- 
tejun