From 8f7dbd85688cc1f0df9477c39322784a1be322ff Mon Sep 17 00:00:00 2001
From: Stephen Paul Weber <singpolyma@singpolyma.net>
Date: Thu, 3 Oct 2024 10:48:53 -0500
Subject: [PATCH] Fix out of bounds exception for bad fallback spans

---
 .../java/eu/siacs/conversations/parser/MessageParser.java     | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/main/java/eu/siacs/conversations/parser/MessageParser.java b/src/main/java/eu/siacs/conversations/parser/MessageParser.java
index 93037c1aa7ca95c3278bec0d19c9e8cb42cd97da..2be039fb11399a4af81bfdf05e3fe25255c5c12e 100644
--- a/src/main/java/eu/siacs/conversations/parser/MessageParser.java
+++ b/src/main/java/eu/siacs/conversations/parser/MessageParser.java
@@ -515,7 +515,9 @@ public class MessageParser extends AbstractParser implements Consumer<im.convers
                         if (span.getAttribute("start") == null || span.getAttribute("end") == null) {
                             bodyB.setLength(0);
                         } else {
-                            bodyB.delete(bodyB.offsetByCodePoints(0, parseInt(span.getAttribute("start"))), bodyB.offsetByCodePoints(0, parseInt(span.getAttribute("end"))));
+                            try {
+                                bodyB.delete(bodyB.offsetByCodePoints(0, parseInt(span.getAttribute("start"))), bodyB.offsetByCodePoints(0, parseInt(span.getAttribute("end"))));
+                            } catch (final IndexOutOfBoundsException e) { /* bad span */ }
                         }
                     }
                 }