gss unit tests failures

We have some unit tests failures on non standard builds.

• Thread sanitiser: https://jenkins.aws.isc.org/job/kea-dev/job/ut-tsan/831/

  • CXXFLAGS = "-g3 -ggdb -O0 -fsanitize=thread -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong -grecord-gcc-switches"
  • list of failures: https://jenkins.aws.isc.org/job/kea-dev/job/ut-tsan/831/testReport/junit/(root)/

• undefined behaviour https://jenkins.aws.isc.org/job/kea-dev/job/ut-ubsan/423/

  • CXXFLAGS = "-g3 -ggdb -O0 -fsanitize=undefined -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong -grecord-gcc-switches"
  • list of failures: https://jenkins.aws.isc.org/job/kea-dev/job/ut-ubsan/423/testReport/