gnupg:fuzz_import: Heap-use-after-free in keydb_release

Detailed Report: https://oss-fuzz.com/testcase?key=5470147604447232 Project: gnupg Fuzzing Engine: libFuzzer Fuzz Target: fuzzimport Job Type: libfuzzerasangnupg Platform Id: linux Crash Type: Heap-use-after-free READ 4 Crash Address: 0x7a8c8f728d80 Crash State: keydbrelease importrevokecert...