diff --git a/libavformat/concatdec.c b/libavformat/concatdec.c
index 114b6c6564..e80956b3a8 100644
--- a/libavformat/concatdec.c
+++ b/libavformat/concatdec.c
@@ -639,6 +639,12 @@ static int concat_parse_script(AVFormatContext *avf)
         }
     }
 
+    if (file->inpoint != AV_NOPTS_VALUE && file->outpoint != AV_NOPTS_VALUE) {
+        if (file->inpoint  > file->outpoint ||
+            file->outpoint - (uint64_t)file->inpoint > INT64_MAX)
+            ret = AVERROR_INVALIDDATA;
+    }
+
 fail:
     for (arg = 0; arg < MAX_ARGS; arg++)
         av_freep(&arg_str[arg]);