Re: [PATCH] ALSA: fireworks: bound device-supplied status before string array lookup

[Takashi Iwai <tiwai@suse.de>]

On Thu, 09 Apr 2026 16:05:54 +0200,
Greg Kroah-Hartman wrote:
> 
> The status field in an EFW response is a 32-bit value supplied by the
> firewire device.  efr_status_names[] has 17 entries so a status value
> outside that range goes off into the weeds when looking at the %s value.
> 
> Even worse, the status could return EFR_STATUS_INCOMPLETE which is
> 0x80000000, and is obviously not in that array of potential strings.
> 
> Fix this up by properly bounding the index against the array size and
> printing "unknown" if it's not recognized.
> 
> Cc: Clemens Ladisch <clemens@ladisch.de>
> Cc: Takashi Sakamoto <o-takashi@sakamocchi.jp>
> Cc: Jaroslav Kysela <perex@perex.cz>
> Cc: Takashi Iwai <tiwai@suse.com>
> Fixes: bde8a8f23bbe ("ALSA: fireworks: Add transaction and some commands")
> Cc: stable <stable@kernel.org>
> Assisted-by: gregkh_clanker_t1000
> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Applied now to for-next branch.  Thanks.


Takashi