RFR: 8346881: [ubsan] logSelection.cpp:154:24 / logSelectionList.cpp:72:94 : runtime error: applying non-zero offset 1 to null pointer

[Matthias Baesken]

When running jtreg tests on macOS aarch64 with ubsanized binaries, the following error is reported :


jdk/src/hotspot/share/logging/logSelection.cpp:154:24: runtime error: applying non-zero offset 1 to null pointer
UndefinedBehaviorSanitizer:DEADLYSIGNAL
UndefinedBehaviorSanitizer: nested bug in the same thread, aborting.


(XCode 13.1 was used)

This can be seen e.g. in these jdk jtreg tests :
jdk/internal/misc/CDS/ArchivedEnumTest.java
jdk/jfr/event/gc/collection/TestGCGarbageCollectionEvent.java
jdk/jfr/startupargs/TestDumpOnExit.java

There is another issue observed here (also when running on macOS aarch64) , seems this happens in the for loop when incrementing comma_pos
" for (char *comma_pos = copy, *cur = copy; success && comma_pos != nullptr; cur = comma_pos + 1) { ..."


src/hotspot/share/logging/logSelectionList.cpp:72:94: runtime error: applying non-zero offset 1 to null pointer
UndefinedBehaviorSanitizer:DEADLYSIGNAL
UndefinedBehaviorSanitizer: nested bug in the same thread, aborting.

-------------

Commit messages:
 - JDK-8346881

Changes: https://git.openjdk.org/jdk/pull/22903/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=22903&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8346881
  Stats: 9 lines in 2 files changed: 6 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/22903.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22903/head:pull/22903

PR: https://git.openjdk.org/jdk/pull/22903