RFR: 8331920: ubsan: g1CardSetContainers.inline.hpp:266:5: runtime error: index 2 out of bounds for type 'G1CardSetHowl::ContainerPtr [2]' reported [v2]

Wed May 22 07:56:16 UTC 2024

On Wed, 22 May 2024 07:53:44 GMT, Ivan Walulya <iwalulya at openjdk.org> wrote:

>> Hi all,
>> 
>> Please review this change to improve access to G1CardSetContainer VLA elements. Instead of  straightforward indexing, we obscure access through a base pointer and offsets to reduce the possibility of UB. 
>> 
>> Testing: Tier 1-3
>>               - Local testing on Mac with `--enable-ubsan`.
>
> Ivan Walulya has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Axel suggestion

Marked as reviewed by aboldtch (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/19300#pullrequestreview-2070413266