linux-hardening - Re: [PATCH 1/2] media: venus: hfi_cmds: struct hfi_session_release_buffer_pkt: Replace 1-element array with flexible array

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Message-ID: <6e1affa3-9570-6a61-2290-be4097a2330e@quicinc.com>
Date: Fri, 12 Jul 2024 18:57:13 +0530
From: Vikash Garodia <quic_vgarodia@...cinc.com>
To: Kees Cook <kees@...nel.org>,
        Stanimir Varbanov
	<stanimir.k.varbanov@...il.com>
CC: Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        Mauro Carvalho Chehab
	<mchehab@...nel.org>,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        <linux-media@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
        <linux-hardening@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] media: venus: hfi_cmds: struct
 hfi_session_release_buffer_pkt: Replace 1-element array with flexible array


On 7/11/2024 4:39 AM, Kees Cook wrote:
> Replace the deprecated[1] use of a 1-element array in
> struct hfi_session_release_buffer_pkt with a modern flexible array.
> 
> No binary differences are present after this conversion.
> 
> Link: https://github.com/KSPP/linux/issues/79 [1]
> Signed-off-by: Kees Cook <kees@...nel.org>
> ---
> Cc: Stanimir Varbanov <stanimir.k.varbanov@...il.com>
> Cc: Vikash Garodia <quic_vgarodia@...cinc.com>
> Cc: "Bryan O'Donoghue" <bryan.odonoghue@...aro.org>
> Cc: Mauro Carvalho Chehab <mchehab@...nel.org>
> Cc: "Gustavo A. R. Silva" <gustavoars@...nel.org>
> Cc: linux-media@...r.kernel.org
> Cc: linux-arm-msm@...r.kernel.org
> Cc: linux-hardening@...r.kernel.org
> ---
>  drivers/media/platform/qcom/venus/hfi_cmds.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/media/platform/qcom/venus/hfi_cmds.h b/drivers/media/platform/qcom/venus/hfi_cmds.h
> index 20acd412ee7b..42825f07939d 100644
> --- a/drivers/media/platform/qcom/venus/hfi_cmds.h
> +++ b/drivers/media/platform/qcom/venus/hfi_cmds.h
> @@ -227,7 +227,7 @@ struct hfi_session_release_buffer_pkt {
>  	u32 extradata_size;
>  	u32 response_req;
>  	u32 num_buffers;
> -	u32 buffer_info[1];
> +	u32 buffer_info[];
>  };
>  
>  struct hfi_session_release_resources_pkt {

Reviewed-by: Vikash Garodia <quic_vgarodia@...cinc.com>

Regards,
Vikash