OSV-2020-420 UNKNOWN WRITE in uffd_cleanup

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15156 Crash type: UNKNOWN WRITE Crash state: uffdcleanup netCDFDataset::netCDFDataset netCDFDataset::netCDFDataset...

gdal/ogr_fuzzer: Crash in uffd_cleanup

Project: https://github.com/OSGeo/gdal.git Detailed report: https://oss-fuzz.com/testcase?key=5644867838935040 Project: gdal Fuzzer: libFuzzergdalogrfuzzer Fuzz target binary: ogrfuzzer Job Type: libfuzzerubsangdal Platform Id: linux Crash Type: UNKNOWN WRITE Crash Address: 0x000000006f6f Crash...