gdal/gdal_fuzzer: Heap-buffer-overflow in VSIMemHandle::Read

Project: https://github.com/OSGeo/gdal.git Detailed report: https://oss-fuzz.com/testcase?key=5411373956726784 Project: gdal Fuzzer: aflgdalfuzzer Fuzz target binary: gdalfuzzer Job Type: aflasangdal Platform Id: linux Crash Type: Heap-buffer-overflow WRITE Crash Address: 0x6130000022c4 Crash...