From 1279168289a8fa5e3a24ab7eaaa5753c277a13ab Mon Sep 17 00:00:00 2001
From: Noel Grandin <noel.grandin@collabora.co.uk>
Date: Wed, 25 Mar 2026 10:26:36 +0200
Subject: [PATCH] fix divide-by-zero in PictReader

regression from commit
  5772d9843048d6e32e28a8de66a320d0f41aefc6
  Author: Noel Grandin <noel.grandin@collabora.co.uk>
  Date:   Tue Mar 24 15:07:00 2026 +0200
  Fraction->double in PictReader

Change-Id: I3c082b7441828c6290854a63a9c9f2384173d6bc
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/202651
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
---
 vcl/source/filter/ipict/ipict.cxx | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/vcl/source/filter/ipict/ipict.cxx b/vcl/source/filter/ipict/ipict.cxx
index a20a40d496e5..c1fb87dda6db 100644
--- a/vcl/source/filter/ipict/ipict.cxx
+++ b/vcl/source/filter/ipict/ipict.cxx
@@ -1259,8 +1259,10 @@ void PictReader::ReadHeader()
             fHRes /= 65536;
             double fVRes = nVResFixed;
             fVRes /= 65536;
-            fHRes /= fHRes;
-            fVRes /= fVRes;
+            if (fHRes != 0)
+                mfHRes /= fHRes;
+            if (fVRes != 0)
+                mfVRes /= fVRes;
             aBoundingRect=tools::Rectangle( x1,y1, x2, y2 );
             pPict->SeekRel( 4 ); // 4 bytes reserved
             return;