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From: Saravana Kannan <skannan@codeaurora.org>
To: Saravana Kannan <skannan@codeaurora.org>
Cc: MyungJoo Ham <myungjoo.ham@samsung.com>,
	Kyungmin Park <kyungmin.park@samsung.com>,
	linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arm-msm@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] PM / devfreq: Fix out of bounds access of transition table array
Date: Tue, 25 Feb 2014 13:13:56 -0800	[thread overview]
Message-ID: <530D0794.2080405@codeaurora.org> (raw)
In-Reply-To: <1393226100-18428-1-git-send-email-skannan@codeaurora.org>

On 02/23/2014 11:15 PM, Saravana Kannan wrote:
> The previous_freq value for a device could be an invalid frequency that
> results in a error value being returned from devfreq_get_freq_level().
> Check for an error value before using that to index into the transition
> table.
>
> Not doing this check will result in memory corruption when previous_freq is
> not a valid frequency.
>
> Signed-off-by: Saravana Kannan <skannan@codeaurora.org>

MyungJoo/Kyungmin,

Would either of you have some time to respond to this?

Thanks,
Saravana


-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
hosted by The Linux Foundation

WARNING: multiple messages have this Message-ID (diff)
From: skannan@codeaurora.org (Saravana Kannan)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] PM / devfreq: Fix out of bounds access of transition table array
Date: Tue, 25 Feb 2014 13:13:56 -0800	[thread overview]
Message-ID: <530D0794.2080405@codeaurora.org> (raw)
In-Reply-To: <1393226100-18428-1-git-send-email-skannan@codeaurora.org>

On 02/23/2014 11:15 PM, Saravana Kannan wrote:
> The previous_freq value for a device could be an invalid frequency that
> results in a error value being returned from devfreq_get_freq_level().
> Check for an error value before using that to index into the transition
> table.
>
> Not doing this check will result in memory corruption when previous_freq is
> not a valid frequency.
>
> Signed-off-by: Saravana Kannan <skannan@codeaurora.org>

MyungJoo/Kyungmin,

Would either of you have some time to respond to this?

Thanks,
Saravana


-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
hosted by The Linux Foundation

  reply	other threads:[~2014-02-25 21:13 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-24  7:15 [PATCH] PM / devfreq: Fix out of bounds access of transition table array Saravana Kannan
2014-02-24  7:15 ` Saravana Kannan
2014-02-25 21:13 ` Saravana Kannan [this message]
2014-02-25 21:13   ` Saravana Kannan
2014-02-26  5:12 함명주
2014-02-27  0:45 ` Saravana Kannan
2014-02-27  0:45   ` Saravana Kannan

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