gdal/gtiff_mmap: Stack-buffer-overflow in CPLvsnprintf

Project: https://github.com/OSGeo/gdal.git Detailed report: https://oss-fuzz.com/testcase?key=4829988999135232 Project: gdal Fuzzer: aflgdalgtiffmmap Fuzz target binary: gtiffmmap Job Type: aflasangdal Platform Id: linux Crash Type: Stack-buffer-overflow WRITE Crash Address: 0x7f176f3570c0 Crash...