We see when running ubsan enabled binaries the following issue in a number of tests ; this came in most likely last week, was not seen before.
It is reported e.g. on Linux x86_64 :
e.g. in jtreg test serviceability/jvmti/vthread/GetThreadState/GetThreadStateTest.java#default (but also in a lot of other tests)

/priv/jenkins/client-home/workspace/openjdk-jdk-weekly-linux_x86_64-opt/jdk/src/hotspot/share/code/relocInfo.cpp:130:37: runtime error: applying non-zero offset 18446744073709551614 to null pointer
    #0 0x7f214afdd731 in RelocIterator::initialize(nmethod*, unsigned char*, unsigned char*) src/hotspot/share/code/relocInfo.cpp:130
    #1 0x7f214ace0d5f in RelocIterator::RelocIterator(nmethod*, unsigned char*, unsigned char*) src/hotspot/share/code/relocInfo.hpp:1442
    #2 0x7f214ace0d5f in nmethod::fix_oop_relocations(unsigned char*, unsigned char*, bool) src/hotspot/share/code/nmethod.cpp:1768
    #3 0x7f214acfa3fc in OopRecorder::copy_values_to(nmethod*) src/hotspot/share/code/oopRecorder.hpp:231
    #4 0x7f214acfa3fc in CodeBuffer::copy_values_to(nmethod*) src/hotspot/share/asm/codeBuffer.hpp:718
    #5 0x7f214acfa3fc in nmethod::nmethod(Method*, CompilerType, int, int, CodeOffsets*, CodeBuffer*, int, ByteSize, ByteSize, OopMapSet*, int) src/hotspot/share/code/nmethod.cpp:1344
    #6 0x7f214acfabef in nmethod::new_native_nmethod(methodHandle const&, int, CodeBuffer*, int, int, int, ByteSize, ByteSize, OopMapSet*, int) src/hotspot/share/code/nmethod.cpp:1118
    #7 0x7f214b0c8643 in SharedRuntime::generate_native_wrapper(MacroAssembler*, methodHandle const&, int, BasicType*, VMRegPair*, BasicType) src/hotspot/cpu/x86/sharedRuntime_x86_64.cpp:1874
    #8 0x7f214b098ea4 in AdapterHandlerLibrary::create_native_wrapper(methodHandle const&) src/hotspot/share/runtime/sharedRuntime.cpp:2846
    #9 0x7f214b2eb57e in SystemDictionary::find_method_handle_intrinsic(vmIntrinsicID, Symbol*, JavaThread*) src/hotspot/share/classfile/systemDictionary.cpp:1985
    #10 0x7f214a939a0d in LinkResolver::lookup_polymorphic_method(LinkInfo const&, Handle*, JavaThread*) src/hotspot/share/interpreter/linkResolver.cpp:477
    #11 0x7f214a93fc69 in LinkResolver::resolve_method(LinkInfo const&, Bytecodes::Code, JavaThread*) src/hotspot/share/interpreter/linkResolver.cpp:787
    #12 0x7f214a944a10 in LinkResolver::linktime_resolve_static_method(LinkInfo const&, JavaThread*) src/hotspot/share/interpreter/linkResolver.cpp:1135
    #13 0x7f214a944f37 in LinkResolver::resolve_static_call(CallInfo&, LinkInfo const&, bool, JavaThread*) src/hotspot/share/interpreter/linkResolver.cpp:1108
    #14 0x7f214ac6a242 in MethodHandles::resolve_MemberName(Handle, Klass*, int, bool, JavaThread*) src/hotspot/share/prims/methodHandles.cpp:773
    #15 0x7f214ac6ac7a in MHN_resolve_Mem src/hotspot/share/prims/methodHandles.cpp:1116