linux-kernel - Re: [GIT PULL 7/7] stm class: Prevent division by zero

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Message-ID: <87o975chxb.fsf@ashishki-desk.ger.corp.intel.com>
Date:   Thu, 21 Feb 2019 16:52:48 +0200
From:   Alexander Shishkin <alexander.shishkin@...ux.intel.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Mathieu Poirier <mathieu.poirier@...aro.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [GIT PULL 7/7] stm class: Prevent division by zero

Greg Kroah-Hartman <gregkh@...uxfoundation.org> writes:

> On Thu, Feb 21, 2019 at 03:49:59PM +0200, Alexander Shishkin wrote:
>> Using STP_POLICY_ID_SET ioctl command with dummy_stm device, or any STM
>> device that supplies zero mmio channel size, will trigger a division by
>> zero bug in the kernel.
>> 
>> Prevent this by disallowing channel widths other than 1 for such devices.
>> 
>> Signed-off-by: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
>
> Fixes: tag?
>
> stable?

Right, let me respin the whole set.

Thanks,
--
Alex