From b44e2ab52b810700a9b51b9c0bde06a47ea45cb2 Mon Sep 17 00:00:00 2001
From: Even Rouault <even.rouault@spatialys.com>
Date: Wed, 8 May 2024 13:26:41 +0200
Subject: [PATCH] AVCBin: avoid integer overflow (fixes
 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=68814)

---
 ogr/ogrsf_frmts/avc/ogravcbinlayer.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/ogr/ogrsf_frmts/avc/ogravcbinlayer.cpp b/ogr/ogrsf_frmts/avc/ogravcbinlayer.cpp
index 1705714a1243..f2e9bf93b96b 100644
--- a/ogr/ogrsf_frmts/avc/ogravcbinlayer.cpp
+++ b/ogr/ogrsf_frmts/avc/ogravcbinlayer.cpp
@@ -31,6 +31,7 @@
 #include "cpl_conv.h"
 #include "cpl_string.h"
 
+#include <climits>
 #include <cstdlib>
 
 /************************************************************************/
@@ -277,8 +278,11 @@ bool OGRAVCBinLayer::FormPolygonGeometry(OGRFeature *poFeature, AVCPal *psPAL)
 
     for (int iArc = 0; iArc < psPAL->numArcs; iArc++)
     {
-        if (psPAL->pasArcs[iArc].nArcId == 0)
+        if (psPAL->pasArcs[iArc].nArcId == 0 ||
+            psPAL->pasArcs[iArc].nArcId == INT_MIN)
+        {
             continue;
+        }
 
         // If the other side of the line is the same polygon then this
         // arc is a "bridge" arc and can be discarded.  If we don't discard