[jdk17u-dev] RFR: 8302595: use-after-free related to GraphKit::clone_map

[Goetz Lindenmaier]

On Thu, 20 Apr 2023 11:29:53 GMT, Goetz Lindenmaier <goetz at openjdk.org> wrote:

> I backport this for parity with 17.0.8-oracle.
> 
> I had to resolve src/hotspot/share/opto/vectorIntrinsics.cpp
> I found no further occurances of old_map->destruct().

Pre-submit failure:  
win: Run Visual Studio Installer
Error: Process completed with exit code 1.
macos: gc/metaspace/TestMetaspacePerfCounters.java#id3
Known to be shaky.
Unrelated.

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PR Comment: https://git.openjdk.org/jdk17u-dev/pull/1288#issuecomment-1519628961