Index: lib/sanitizer_common/sanitizer_stacktrace_libcdep.cc =================================================================== --- lib/sanitizer_common/sanitizer_stacktrace_libcdep.cc +++ lib/sanitizer_common/sanitizer_stacktrace_libcdep.cc @@ -43,7 +43,8 @@ if (dedup_frames-- > 0) { if (dedup_token.length()) dedup_token.append("--"); - dedup_token.append(cur->info.function); + if (cur->info.function != nullptr) + dedup_token.append(cur->info.function); } } frames->ClearAll();