linux-kernel - Re: [PATCH] clk: stm32: Fix out-by-one error path in the index lookup

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Message-ID: <20150702165553.GC7201@codeaurora.org>
Date:	Thu, 2 Jul 2015 09:55:53 -0700
From:	Stephen Boyd <sboyd@...eaurora.org>
To:	Daniel Thompson <daniel.thompson@...aro.org>
Cc:	Mike Turquette <mturquette@...aro.org>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org,
	patches@...aro.org, linaro-kernel@...ts.linaro.org
Subject: Re: [PATCH] clk: stm32: Fix out-by-one error path in the index lookup

On 06/28, Daniel Thompson wrote:
> If stm32f4_rcc_lookup() is called with primary == 0 and secondary == 192
> then it will read beyond the end of the table array due to an out-by-one
> error in the range check.
> 
> In addition to the fixing the inequality we also modify the r.h.s. to
> make it even more explicit that we are comparing against the size of
> table in bits.
> 
> Reported-by: Dan Carpenter <dan.carpenter@...cle.com>
> Signed-off-by: Daniel Thompson <daniel.thompson@...aro.org>
> ---

Applied to clk-fixes

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