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Subject: Re: [PATCH v8 2/5] ipc: IPCMNI limit check for semmni
To:     "Luis R. Rodriguez" <mcgrof@kernel.org>
Cc:     Kees Cook <keescook@chromium.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Jonathan Corbet <corbet@lwn.net>, linux-kernel@vger.kernel.org,
        linux-fsdevel@vger.kernel.org, linux-doc@vger.kernel.org,
        Al Viro <viro@zeniv.linux.org.uk>,
        Matthew Wilcox <willy@infradead.org>,
        "Eric W. Biederman" <ebiederm@xmission.com>,
        Takashi Iwai <tiwai@suse.de>, Davidlohr Bueso <dbueso@suse.de>
References: <1529317698-16575-1-git-send-email-longman@redhat.com>
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 <20180628223906.GB331@wotan.suse.de>
From:   Waiman Long <longman@redhat.com>
Organization: Red Hat
Message-ID: <d0596d73-1130-3ee5-a8ee-b8a9e8989d45@redhat.com>
Date:   Fri, 29 Jun 2018 15:26:23 +0800
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On 06/29/2018 06:39 AM, Luis R. Rodriguez wrote:
> On Mon, Jun 18, 2018 at 06:28:15PM +0800, Waiman Long wrote:
>> For SysV semaphores, the semmni value is the last part of the 4-element
>> sem number array. To make semmni behave in a similar way to msgmni and
>> shmmni, we can't directly use the _minmax handler. Instead, a special
>> sem specific handler is added to check the last argument to make sure
>> that it is limited to the [0, IPCMNI] range. An error will be returned
>> if this is not the case.
> Sorry my time has run out, and will be on vacation until July 10th. If
> this can wait until then then great, otherwise hopefully Kees can take
> a look. It would be wonderful to get Eric's review on this as well.
>
>   Luis

Thanks for the review. I will try to get other reviewer to chime in.

Kees and Eric, do you have comments on this patchset?

Cheers,
Longman