Fix some errors found by fuzzers #2979

Job	Run time
Python Bindings (ubuntu-latest)	1m 13s
Test Utils (ubuntu-latest)	2m 38s
ubuntu-latest x86_64 --with-local-libgcrypt cc	6m 35s
ubuntu-latest x86_64 cc	7m 50s
ubuntu-20.04 x86_64 --with-local-libgcrypt cc	5m 41s
ubuntu-20.04 x86_64 cc	7m 39s
macOS-latest x86_64 --with-local-libgcrypt cc	3m 55s
macOS-latest x86_64 cc	4m 38s
macos-11 x86_64 --with-local-libgcrypt cc	4m 27s
macos-11 x86_64 cc	4m 35s
windows-latest x86_64 --with-local-libgcrypt cc	25m 56s
windows-latest x86_64 cc	9m 50s
ubuntu-20.04 x86_64 gcc-7 --with-pcre --with-maxminddb --with-sanitizer	9m 50s
ubuntu-22.04 x86_64 gcc-12 --with-pcre --with-maxminddb --with-sanitizer --with-lto-and-gold-linker	10m 53s
ubuntu-20.04 x86_64 clang-7 --with-pcre --with-maxminddb --with-sanitizer	11m 23s
ubuntu-22.04 x86_64 clang-14 --with-pcre --with-maxminddb --with-sanitizer --with-lto-and-gold-linker	11m 40s
ubuntu-latest x86_64 cc --with-pcre --with-maxminddb --with-thread-sanitizer	18m 9s
ubuntu-latest x86_64 cc --with-pcre --with-maxminddb --with-sanitizer nBPF	6m 53s
ubuntu-22.04 x86_64 clang-14 --with-pcre --with-maxminddb --with-memory-sanitizer	14m 0s
macOS-latest x86_64 cc --with-pcre --with-maxminddb	4m 35s
macos-12 x86_64 cc --with-pcre --with-maxminddb	4m 18s
ubuntu-latest arm64 cc --with-pcre --with-maxminddb	20m 24s
ubuntu-latest armhf cc --with-pcre --with-maxminddb --with-sanitizer	39m 36s
ubuntu-latest s390x cc --with-pcre --with-maxminddb	24m 31s
	4h 21m 9s

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