Commit 14752ee1 for libheif

commit 14752ee1a8afc740974d55ddc0556e346a238d87
Author: Devon Sookhoo <devonsookhoo14@gmail.com>
Date:   Wed Feb 4 17:08:54 2026 -0700

    error check: tile coordinates must be valid

diff --git a/libheif/image-items/unc_image.cc b/libheif/image-items/unc_image.cc
index 2a1988da..eb7eabcb 100644
--- a/libheif/image-items/unc_image.cc
+++ b/libheif/image-items/unc_image.cc
@@ -497,6 +497,13 @@ Error ImageItem_uncompressed::add_image_tile(uint32_t tile_x, uint32_t tile_y, c

   uint32_t tile_idx = tile_y * uncC->get_number_of_tile_columns() + tile_x;

+  if (tile_y >= uncC->get_number_of_tile_rows() ||
+      tile_x >= uncC->get_number_of_tile_columns()) {
+    return Error{heif_error_Invalid_input,
+                 heif_suberror_Invalid_parameter_value,
+                 "tile_x and/or tile_y are out of range."};
+  }
+
   Result<std::vector<uint8_t>> codedBitstreamResult = encode_image_tile(image, save_alpha);
   if (!codedBitstreamResult) {
     return codedBitstreamResult.error();