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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <5d335794-f8e1-c763-a81e-49413733b696@cn.fujitsu.com>
Date:   Tue, 12 Dec 2017 09:19:01 +0800
From:   Ma Shimiao <mashimiao.fnst@...fujitsu.com>
To:     Tejun Heo <tj@...nel.org>
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 12/11/2017 11:05 PM, Tejun Heo wrote:
> 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?

OK, I will update the patch
> 
> Thanks.
> 


-- 
Ma Shimiao
Development Dept.I
Nanjing Fujitsu Nanda Software Tech. Co., Ltd.(FNST)