bind9:dns_message_checksig_fuzzer: Index-out-of-bounds in add_link

Detailed Report: https://oss-fuzz.com/testcase?key=6464739246735360 Project: bind9 Fuzzing Engine: libFuzzer Fuzz Target: dnsmessagechecksigfuzzer Job Type: libfuzzerubsanbind9 Platform Id: linux Crash Type: Index-out-of-bounds Crash Address: Crash State: addlink dnsqplookup dnsztfind Sanitizer:...