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Fix ICONDIR buffer overflow

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This commit is contained in:
Patrick Dawson 2022-11-14 00:47:14 +01:00
parent b05e1e7d69
commit ffa39db847
1 changed files with 1 additions and 1 deletions
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platform/windows/display_server_windows.cpp
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@ -1892,7 +1892,7 @@ void DisplayServerWindows::set_native_icon(const String &p_filename) {
pos += sizeof(WORD);
f->seek(pos);
icon_dir = (ICONDIR *)memrealloc(icon_dir, 3 * sizeof(WORD) + icon_dir->idCount * sizeof(ICONDIRENTRY));
icon_dir = (ICONDIR *)memrealloc(icon_dir, sizeof(ICONDIR) - sizeof(ICONDIRENTRY) + icon_dir->idCount * sizeof(ICONDIRENTRY));
f->get_buffer((uint8_t *)&icon_dir->idEntries[0], icon_dir->idCount * sizeof(ICONDIRENTRY));
int small_icon_index = -1; // Select 16x16 with largest color count.