linux-kernel - Re: [patch v2] cx231xx: card->driver "Conexant cx231xx Audio" too long

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Message-ID: <s5hwrx3a5gh.wl%tiwai@suse.de>
Date:	Tue, 23 Mar 2010 07:59:42 +0100
From:	Takashi Iwai <tiwai@...e.de>
To:	Dan Carpenter <error27@...il.com>
Cc:	Mauro Carvalho Chehab <mchehab@...radead.org>,
	Srinivasa Deevi <srinivasa.deevi@...exant.com>,
	linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: Re: [patch v2] cx231xx: card->driver "Conexant cx231xx Audio" too long

At Mon, 22 Mar 2010 18:39:09 +0300,
Dan Carpenter wrote:
> 
> card->driver is 15 characters and a NULL, the original code could 
> cause a buffer overflow.
>  
> Signed-off-by: Dan Carpenter <error27@...il.com>
> ---
> In version 2, I used a better name that Takashi Iwai suggested.

Acked-by: Takashi Iwai <tiwai@...e.de>

Could you fix em28xx in the same way, too?


thanks,

Takashi

> diff --git a/drivers/media/video/cx231xx/cx231xx-audio.c b/drivers/media/video/cx231xx/cx231xx-audio.c
> index 7793d60..7cae95a 100644
> --- a/drivers/media/video/cx231xx/cx231xx-audio.c
> +++ b/drivers/media/video/cx231xx/cx231xx-audio.c
> @@ -495,7 +495,7 @@ static int cx231xx_audio_init(struct cx231xx *dev)
>  	pcm->info_flags = 0;
>  	pcm->private_data = dev;
>  	strcpy(pcm->name, "Conexant cx231xx Capture");
> -	strcpy(card->driver, "Conexant cx231xx Audio");
> +	strcpy(card->driver, "Cx231xx-Audio");
>  	strcpy(card->shortname, "Cx231xx Audio");
>  	strcpy(card->longname, "Conexant cx231xx Audio");
>  
> --
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