diff --git a/sound/core/info.c b/sound/core/info.c
index 895362a696c95b3737bf82123cba9b00146bb6a6..291d6ed80d80db4550a15dd1ce176f4ed8e6932a 100644
--- a/sound/core/info.c
+++ b/sound/core/info.c
@@ -329,6 +329,9 @@ static ssize_t snd_info_text_entry_write(struct file *file,
 	if (!valid_pos(pos, count))
 		return -EIO;
 	next = pos + count;
+	/* don't handle too large text inputs */
+	if (next > 16 * 1024)
+		return -EIO;
 	mutex_lock(&entry->access);
 	buf = data->wbuffer;
 	if (!buf) {