GDALResampleChunk_ConvolutionT(): avoid casting NaN to int64_t

Fixes OSGeo#11905
rouault · Mar 3, 2025 · 9b522d1 · 9b522d1
1 parent 7ced0d6
commit 9b522d1
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/gcore/overview.cpp b/gcore/overview.cpp
@@ -3142,7 +3142,10 @@ static CPLErr GDALResampleChunk_ConvolutionT(
                    : dfNoDataValue;
     // cppcheck-suppress unreadVariable
     const int isIntegerDT = GDALDataTypeIsInteger(dstDataType);
-    const auto nNodataValueInt64 = static_cast<GInt64>(dfNoDataValue);
+    const auto nNodataValueInt64 =
+        isIntegerDT && GDALIsValueExactAs<GInt64>(dfNoDataValue)
+            ? static_cast<GInt64>(dfNoDataValue)
+            : 0;
     constexpr int nWrkDataTypeSize = static_cast<int>(sizeof(Twork));
 
     // TODO: we should have some generic function to do this.