linux-kernel - Re: [PATCH 01/23] interconnect: fix mem leak when freeing nodes

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Date:   Wed, 1 Feb 2023 12:18:28 +0100
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Johan Hovold <johan+linaro@...nel.org>,
        Georgi Djakov <djakov@...nel.org>
Cc:     Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Sylwester Nawrocki <s.nawrocki@...sung.com>,
        Artur Świgoń <a.swigon@...sung.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        linux-pm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-arm-msm@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
        linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org,
        stable@...r.kernel.org, Georgi Djakov <georgi.djakov@...aro.org>
Subject: Re: [PATCH 01/23] interconnect: fix mem leak when freeing nodes



On 1.02.2023 11:15, Johan Hovold wrote:
> The node link array is allocated when adding links to a node but is not
> deallocated when nodes are destroyed.
> 
> Fixes: 11f1ceca7031 ("interconnect: Add generic on-chip interconnect API")
> Cc: stable@...r.kernel.org      # 5.1
> Cc: Georgi Djakov <georgi.djakov@...aro.org>
> Signed-off-by: Johan Hovold <johan+linaro@...nel.org>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>

Konrad
>  drivers/interconnect/core.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/interconnect/core.c b/drivers/interconnect/core.c
> index 423f875d4b54..dc61620a0191 100644
> --- a/drivers/interconnect/core.c
> +++ b/drivers/interconnect/core.c
> @@ -850,6 +850,7 @@ void icc_node_destroy(int id)
>  
>  	mutex_unlock(&icc_lock);
>  
> +	kfree(node->links);
>  	kfree(node);
>  }
>  EXPORT_SYMBOL_GPL(icc_node_destroy);