From f9f29304d8f08ab255f68ab96c78480dd5c30151 Mon Sep 17 00:00:00 2001
From: Mirco Miranda <mircomir@gmail.com>
Date: Tue, 27 Aug 2024 21:52:25 +0000
Subject: [PATCH] XCF: fix crash (KF5)

---
 src/imageformats/xcf.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/imageformats/xcf.cpp b/src/imageformats/xcf.cpp
index cf5092b..8121a9b 100644
--- a/src/imageformats/xcf.cpp
+++ b/src/imageformats/xcf.cpp
@@ -1976,6 +1976,12 @@ static bool convertFloatTo16Bit(uchar *output, quint64 outputSize, uchar *input)
  */
 bool XCFImageFormat::loadLevel(QDataStream &xcf_io, Layer &layer, qint32 bpp, const GimpPrecision precision)
 {
+    auto bpc = bytesPerChannel(precision);
+    if ((bpc == 0) || (bpp % bpc)) {
+        qCDebug(XCFPLUGIN) << "XCF: the stream seems corrupted";
+        return false;
+    }
+
     qint32 width;
     qint32 height;