Commit d50a444b for tesseract

commit d50a444b8417a6807f6e7e02aa93f6d377bfa2c9
Author: Stefan Weil <sw@weilnetz.de>
Date:   Sun Aug 9 13:28:30 2026 +0200

    Fix CID 1550484 (Overflowed integer argument)

    Compute new box coordinates in 64 bit to avoid integer overflow
    when adding the box width or height. Cast the result to int
    before passing it to AddBox.

    Assisted-by: OpenCode / big-pickle (opencode)
    Signed-off-by: Stefan Weil <sw@weilnetz.de>

diff --git a/src/training/pango/boxchar.cpp b/src/training/pango/boxchar.cpp
index 35c1a2b7..6b152ef9 100644
--- a/src/training/pango/boxchar.cpp
+++ b/src/training/pango/boxchar.cpp
@@ -29,6 +29,7 @@
 #include "unicode/uchar.h" // from libicu

 #include <algorithm>
+#include <climits> // for INT_MAX
 #include <cstddef>
 #include <vector>

@@ -143,27 +144,30 @@ void BoxChar::InsertNewlines(bool rtl_rules, bool vertical_rules, std::vector<Bo
         // a box outside the image by making the width and height 1.
         int width = 1;
         int height = 1;
-        int x = prev_box->x + prev_box->w;
-        int y = prev_box->y;
+        int64_t x = static_cast<int64_t>(prev_box->x) + prev_box->w;
+        int64_t y = prev_box->y;
         if (vertical_rules) {
           x = prev_box->x;
-          y = prev_box->y + prev_box->h;
+          y = static_cast<int64_t>(prev_box->y) + prev_box->h;
         } else if (rtl_rules) {
-          x = prev_box->x - width;
+          x = static_cast<int64_t>(prev_box->x) - width;
           if (x < 0) {
             tprintf("prev x = %d, width=%d\n", prev_box->x, width);
             x = 0;
           }
         }
+        // Avoid implementation-defined narrowing on corrupt input data.
+        x = std::clamp(x, int64_t{0}, static_cast<int64_t>(INT_MAX));
+        y = std::clamp(y, int64_t{0}, static_cast<int64_t>(INT_MAX));
         if (prev_i + 1 == i) {
           // New character needed.
           auto *new_box = new BoxChar("\t", 1);
-          new_box->AddBox(x, y, width, height);
+          new_box->AddBox(static_cast<int>(x), static_cast<int>(y), width, height);
           new_box->page_ = (*boxes)[i]->page_;
           boxes->insert(boxes->begin() + i, new_box);
           ++i;
         } else {
-          (*boxes)[i - 1]->AddBox(x, y, width, height);
+          (*boxes)[i - 1]->AddBox(static_cast<int>(x), static_cast<int>(y), width, height);
           (*boxes)[i - 1]->ch_ = "\t";
         }
         max_shift = 0;