linux-kernel - Re: [PATCH] arm64: Add missing sentinel to erratum

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Date:   Thu, 09 Jul 2020 10:51:50 +0530
From:   Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>
To:     Florian Fainelli <f.fainelli@...il.com>
Cc:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Marc Zyngier <maz@...nel.org>,
        Steven Price <steven.price@....com>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Mark Brown <broonie@...nel.org>,
        James Morse <james.morse@....com>,
        Mark Rutland <mark.rutland@....com>,
        Andrew Scull <ascull@...gle.com>
Subject: Re: [PATCH] arm64: Add missing sentinel to erratum_1463225

Hi Florian,

On 2020-07-09 10:43, Florian Fainelli wrote:
> When the erratum_1463225 array was introduced a sentinel at the end was
> missing thus causing a KASAN: global-out-of-bounds in
> is_affected_midr_range_list on arm64 error.
> 
> Link:
> https://lore.kernel.org/linux-arm-kernel/CA+G9fYs3EavpU89-rTQfqQ9GgxAMgMAk7jiiVrfP0yxj5s+Q6g@mail.gmail.com/
> Fixes: a9e821b89daa ("arm64: Add KRYO4XX gold CPU cores to erratum
> list 1463225 and 1418040")
> Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
> ---
>  arch/arm64/kernel/cpu_errata.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm64/kernel/cpu_errata.c 
> b/arch/arm64/kernel/cpu_errata.c
> index 8e302dc093d0..79728bfb5351 100644
> --- a/arch/arm64/kernel/cpu_errata.c
> +++ b/arch/arm64/kernel/cpu_errata.c
> @@ -782,6 +782,7 @@ static const struct midr_range erratum_1463225[] = 
> {
>  	MIDR_RANGE(MIDR_CORTEX_A76, 0, 0, 3, 1),
>  	/* Kryo4xx Gold (rcpe to rfpf) => (r0p0 to r3p1) */
>  	MIDR_RANGE(MIDR_QCOM_KRYO_4XX_GOLD, 0xc, 0xe, 0xf, 0xf),
> +	{},
>  };
>  #endif

My bad missing this, thanks for the fix.

Reviewed-by: Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>

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