From aa55bf35ebd44dfdbac15743e6e1b9c81b0b309c Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Tue, 14 May 2024 02:12:45 +0200
Subject: [PATCH] Catch issues with invalid region vs. source length

e.g. the session from
https://tracker.ardour.org/view.php?id=9704#c28732
---
 libs/ardour/playlist.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libs/ardour/playlist.cc b/libs/ardour/playlist.cc
index cc97894222..5389d30cb7 100644
--- a/libs/ardour/playlist.cc
+++ b/libs/ardour/playlist.cc
@@ -2668,6 +2668,7 @@ Playlist::relayer ()
 		}
 
 		assert (divisions == 0 || end_division < divisions);
+		assert (start_division >= 0 && end_division >= start_division);
 
 		/* find the lowest layer that this region can go on */
 		size_t j = layers.size ();