From aae50f9a99f1f09f2b748ec24439fe3536913529 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Sun, 27 Oct 2024 14:12:20 +0530
Subject: [PATCH] ...

---
 kitty/fonts.c      | 5 +++--
 kitty/text-cache.h | 2 +-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/kitty/fonts.c b/kitty/fonts.c
index 201548a0f..8e01705b2 100644
--- a/kitty/fonts.c
+++ b/kitty/fonts.c
@@ -1728,8 +1728,9 @@ get_fallback_font(PyObject UNUSED *self, PyObject *args) {
     int bold, italic;
     if (!PyArg_ParseTuple(args, "Upp", &text, &bold, &italic)) return NULL;
     GPUCell gpu_cell = {0};
-    RAII_ListOfChars(lc); ensure_space_for_chars(&lc, PyUnicode_GetLength(text));
-    if (!PyUnicode_AsUCS4(text, lc.chars, lc.count, 1)) return NULL;
+    RAII_ListOfChars(lc); lc.count = PyUnicode_GET_LENGTH(text);
+    ensure_space_for_chars(&lc, lc.count);
+    if (!PyUnicode_AsUCS4(text, lc.chars, lc.capacity, 1)) return NULL;
     if (bold) gpu_cell.attrs.bold = true;
     if (italic) gpu_cell.attrs.italic = true;
     FontGroup *fg = font_groups;
diff --git a/kitty/text-cache.h b/kitty/text-cache.h
index d3245fa42..87098aea1 100644
--- a/kitty/text-cache.h
+++ b/kitty/text-cache.h
@@ -36,7 +36,7 @@ ensure_space_for_chars(ListOfChars *lc, size_t count) {
         lc->capacity = count + LIST_OF_CHARS_STACK_SIZE;
         void *chars = malloc(lc->capacity * sizeof(lc->chars[0]));
         if (!chars) fatal("Out of memory allocating LCChars char space");
-        memcpy(chars, lc->chars, MIN(lc->count, LIST_OF_CHARS_STACK_SIZE) * sizeof(lc->chars[0]));
+        memcpy(chars, lc->chars, LIST_OF_CHARS_STACK_SIZE * sizeof(lc->chars[0]));
         lc->chars = chars;
     }
 }