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Date: Wed, 2 Sep 2026 07:55:29 +0200
From: Greg KH <gregkh@linuxfoundation.org>
To: Yudi Yang <2000jedi@gmail.com>
Cc: vaibhav.sr@gmail.com, mgreer@animalcreek.com, johan@kernel.org,
	elder@kernel.org, greybus-dev@lists.linaro.org,
	linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org,
	stable@vger.kernel.org
Subject: Re: [PATCH] staging: greybus: audio_codec: fix stack overflow in
 stream name parsing
Message-ID: <2026090219-democracy-chip-87fd@gregkh>
References: <20260901185600.2725678-1-2000jedi@gmail.com>
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In-Reply-To: <20260901185600.2725678-1-2000jedi@gmail.com>

On Tue, Sep 01, 2026 at 01:56:00PM -0500, Yudi Yang wrote:
> intf_name and dir are 32-byte buffers. Parsing a module-provided AIF
> stream name with unbounded %s conversions can cause buffer-overwrites.
> Limit each conversion to 31 characters.
> 
> Fixes: 60e7327d54b2 ("greybus: audio: Find data connection based on id")
> Cc: stable@vger.kernel.org
> Signed-off-by: Yudi Yang <2000jedi@gmail.com>
> ---
>  drivers/staging/greybus/audio_codec.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

How was this found and tested?

thanks,

greg k-h