OSV-2024-476 Heap-buffer-overflow in ultrahdr::getYuv420Pixel

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=68946 Crash type: Heap-buffer-overflow READ 1 Crash state: ultrahdr::getYuv420Pixel std::1::function::funcultrahdr::JpegR::applyGainMap ultrahdr::JpegR::applyGainMap...