Re: [PATCH] ALSA: aloop: Fix peer runtime UAF during format-change stop

[Cássio Gabriel Monteiro Pires]

On 4/24/26 08:14, Takashi Iwai wrote: 
> Do we need to complicate this handling?  IOW, can it be simply be like
> below?
> 
> 	if (stop_capture) {
> 		snd_pcm_stop(dpcm_capt->substream, SNDRV_PCM_STATE_DRAINING);
> 		if (atomic_dec_and_test(&cable->stop_count))
> 			wake_up(&cable->stop_wait);
> 	}

That makes sense.

The lifetime fix only needs the stop_count/stop_wait
serialization, so I can simplify the stop path as you suggested.

I'll respin and send a v2 patch. 

-- 
Thanks,
Cássio

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