1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/au.c b/libavformat/au.c
index b66d559d3c..aa52a96ea1 100644
--- a/libavformat/au.c
+++ b/libavformat/au.c
@@ -150,7 +150,7 @@ static int au_read_header(AVFormatContext *s)
         return AVERROR_INVALIDDATA;
     }
 
-    if (channels <= 0) {
+    if (channels == 0 || channels > 64) {
         av_log(s, AV_LOG_ERROR, "Invalid number of channels %d\n", channels);
         return AVERROR_INVALIDDATA;
     }