diff --git a/sound/virtio/virtio_pcm.h b/sound/virtio/virtio_pcm.h
index 368dafa5df3f..8837dfc12828 100644
--- a/sound/virtio/virtio_pcm.h
+++ b/sound/virtio/virtio_pcm.h
@@ -118,6 +118,8 @@ int virtsnd_pcm_msg_alloc(struct virtio_pcm_substream *vss,
 
 void virtsnd_pcm_msg_free(struct virtio_pcm_substream *vss);
 
+void virtsnd_pcm_msg_reset(struct virtio_pcm_substream *vss);
+
 int virtsnd_pcm_msg_send(struct virtio_pcm_substream *vss, unsigned long offset,
 			 unsigned long bytes);
 
diff --git a/sound/virtio/virtio_pcm_msg.c b/sound/virtio/virtio_pcm_msg.c
index a5c4e7027717..72103f606716 100644
--- a/sound/virtio/virtio_pcm_msg.c
+++ b/sound/virtio/virtio_pcm_msg.c
@@ -182,6 +182,25 @@ void virtsnd_pcm_msg_free(struct virtio_pcm_substream *vss)
 	vss->nmsgs = 0;
 }
 
+/**
+ * virtsnd_pcm_msg_reset() - Reset the fill level of all I/O messages.
+ * @vss: VirtIO PCM substream.
+ *
+ * Messages that were only partially filled by the application when the
+ * substream was stopped are never sent to the device, so their length must be
+ * cleared before the substream is started again.
+ *
+ * Context: Any context. Takes and releases the VirtIO substream spinlock.
+ */
+void virtsnd_pcm_msg_reset(struct virtio_pcm_substream *vss)
+{
+	unsigned int i;
+
+	guard(spinlock_irqsave)(&vss->lock);
+	for (i = 0; vss->msgs && i < vss->nmsgs; ++i)
+		vss->msgs[i]->length = 0;
+}
+
 /**
  * virtsnd_pcm_msg_send() - Send asynchronous I/O messages.
  * @vss: VirtIO PCM substream.
diff --git a/sound/virtio/virtio_pcm_ops.c b/sound/virtio/virtio_pcm_ops.c
index 1105e7ff3523..1091100a4c98 100644
--- a/sound/virtio/virtio_pcm_ops.c
+++ b/sound/virtio/virtio_pcm_ops.c
@@ -299,6 +299,7 @@ static int virtsnd_pcm_prepare(struct snd_pcm_substream *substream)
 	vss->xfer_xrun = false;
 	vss->suspended = false;
 	vss->msg_count = 0;
+	virtsnd_pcm_msg_reset(vss);
 
 	memset(&vss->pcm_indirect, 0, sizeof(vss->pcm_indirect));
 	vss->pcm_indirect.sw_buffer_size =