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ALSA: compress: info leak in snd_compr_get_caps()
If the ->get_caps() function doesn't clear the buffer then there would stack information leaked to userspace. For example, soc_compr_get_caps() can return success without clearing the buffer. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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@ -409,6 +409,7 @@ snd_compr_get_caps(struct snd_compr_stream *stream, unsigned long arg)
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if (!stream->ops->get_caps)
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return -ENXIO;
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memset(&caps, 0, sizeof(caps));
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retval = stream->ops->get_caps(stream, &caps);
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if (retval)
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goto out;
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