linux-kernel - Re: [PATCH] rpmsg: glink: Replace strcpy() with strscpy()

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Message-ID: <aXv6ZEFWRj6pxxwQ@hu-clew-lv.qualcomm.com>
Date: Thu, 29 Jan 2026 16:25:08 -0800
From: Chris Lew <christopher.lew@....qualcomm.com>
To: Vishnu Santhosh <vishnu.santhosh@....qualcomm.com>
Cc: Bjorn Andersson <andersson@...nel.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        deepak.singh@....qualcomm.com, chris.lew@....qualcomm.com,
        linux-arm-msm@...r.kernel.org, linux-remoteproc@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Sudeepgoud Patil <quic_sudeepgo@...cinc.com>
Subject: Re: [PATCH] rpmsg: glink: Replace strcpy() with strscpy()

On Thu, Dec 11, 2025 at 02:18:34PM +0530, Vishnu Santhosh wrote:
> From: Sudeepgoud Patil <quic_sudeepgo@...cinc.com>
> 
> Replace strcpy() with the safer strscpy() to address unsafe API
> usage warnings[1] from static analysis tools, as strcpy() performs
> no bounds checking on the destination buffer.
> 
> [1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strcpy
> 
> Signed-off-by: Sudeepgoud Patil <quic_sudeepgo@...cinc.com>
> Signed-off-by: Vishnu Santhosh <vishnu.santhosh@....qualcomm.com>
> ---
>  drivers/rpmsg/qcom_glink_native.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 

Reviewed-by: Chris Lew <christopher.lew@....qualcomm.com>

> diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c
> index 5ea096acc8581b1aff106f4c0e2f9aee9d56e25b..37b2255495d53270521466a05a5eb97eca98ec0e 100644
> --- a/drivers/rpmsg/qcom_glink_native.c
> +++ b/drivers/rpmsg/qcom_glink_native.c
> @@ -501,7 +501,7 @@ static int qcom_glink_send_open_req(struct qcom_glink *glink,
>  	req->cmd = cpu_to_le16(GLINK_CMD_OPEN);
>  	req->param1 = cpu_to_le16(channel->lcid);
>  	req->param2 = cpu_to_le32(name_len);
> -	strcpy(req->data, channel->name);
> +	strscpy(req->data, channel->name, GLINK_NAME_SIZE);
>  
>  	trace_qcom_glink_cmd_open_tx(glink->label, channel->name,
>  				     channel->lcid, channel->rcid);
> 
> ---
> base-commit: d358e5254674b70f34c847715ca509e46eb81e6f
> change-id: 20251203-rpmsg-glink-strcpy-replace-738ab624071f
> 
> Best regards,
> -- 
> Vishnu Santhosh <vishnu.santhosh@....qualcomm.com>
>