Deallocate warp_extras at end of _reproject() (#2980)

Resolves new report in #494
rasterio · Dec 8, 2023 · 069d880 · 069d880
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commit 069d880
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diff --git a/CHANGES.txt b/CHANGES.txt
@@ -4,6 +4,8 @@ Changes
 Next
 ----
 
+- Deallocate list of warp extras in _reproject(), fixing a potential leak
+  (#494).
 - Adjust several tests to small differences in output between GDAL 3.7 and 3.8
   (#2959).
 - The output file size limits of rio-warp were made redundant by changes to the

diff --git a/rasterio/_warp.pyx b/rasterio/_warp.pyx
@@ -592,6 +592,7 @@ def _reproject(
 
         GDALDestroyWarpOptions(psWOptions)
         CPLFree(imgProjOptions)
+        CSLDestroy(warp_extras)
 
         if mem_raster is not None:
             mem_raster.close()