libreoffice/ww8fuzzer: Heap-buffer-overflow in WW8_BRC::isNil

Detailed report: https://oss-fuzz.com/testcase?key=5688323562012672 Project: libreoffice Fuzzer: afllibreofficeww8fuzzer Fuzz target binary: ww8fuzzer Job Type: aflasanlibreoffice Platform Id: linux Crash Type: Heap-buffer-overflow READ 1 Crash Address: 0x61400005a7c8 Crash State: WW8BRC::isNil...