Re: [PATCH] ALSA: firewire-motu: add bounds check in put_user loop for DSP events

[Takashi Iwai]

On Tue, 09 Dec 2025 06:16:41 +0100,
Junrui Luo wrote:
> 
> In the DSP event handling code, a put_user() loop copies event data.
> When the user buffer size is not aligned to 4 bytes, it could overwrite
> beyond the buffer boundary.
> 
> Fix by adding a bounds check before put_user().
> 
> Suggested-by: Takashi Iwai <tiwai@xxxxxxx>
> Fixes: 634ec0b2906e ("ALSA: firewire-motu: notify event for parameter change in register DSP model")
> Signed-off-by: Junrui Luo <moonafterrain@xxxxxxxxxxx>

Applied now.  Thanks.


Takashi