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8358289: [asan] runtime/cds/appcds/aotCode/AOTCodeFlags.java reports heap-buffer-overflow in ArchiveBuilder #25604

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vnkozlov
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@vnkozlov vnkozlov commented Jun 3, 2025

There is difference between AdapterFingerPrint allocation size compute_size which may not be aligned to HeapWord size and size used for copying during AOT cache build which is aligned and can be bigger than allocation size.

I added asserts to AdapterFingerPrint and AdapterHandlerEntry to make sure sizes are correct. Both are used in AOT cache build.

I also moved FreeHeap() from ~AdapterFingerPrint() to enforce the comment and simplify executed code.

Thanks to @MBaesken for finding the issue and @iklam for pointing the cause.

Testing tier1-3, xcomp, stress. Higher tiers are still running.


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  • JDK-8358289: [asan] runtime/cds/appcds/aotCode/AOTCodeFlags.java reports heap-buffer-overflow in ArchiveBuilder (Bug - P3)

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bridgekeeper bot commented Jun 3, 2025

👋 Welcome back kvn! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

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openjdk bot commented Jun 3, 2025

@vnkozlov This change now passes all automated pre-integration checks.

ℹ️ This project also has non-automated pre-integration requirements. Please see the file CONTRIBUTING.md for details.

After integration, the commit message for the final commit will be:

8358289: [asan] runtime/cds/appcds/aotCode/AOTCodeFlags.java reports heap-buffer-overflow in ArchiveBuilder

Reviewed-by: shade, iklam, asmehra

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@openjdk openjdk bot added the rfr Pull request is ready for review label Jun 3, 2025
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@vnkozlov The following label will be automatically applied to this pull request:

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Webrevs

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vnkozlov commented Jun 3, 2025

@MBaesken please test this.

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@iklam @MBaesken Nice catch.
@vnkozlov thanks for fixing it.

I realized compute_size() does not use sig_bt parameter. Since you are touching this code, can you please remove it as well.

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Looks okay. Asserts get a bit tautological, but it is pleasantly paranoid for my taste.

@openjdk openjdk bot added the ready Pull request is ready to be integrated label Jun 3, 2025
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vnkozlov commented Jun 3, 2025

Thank you, Aleksey

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vnkozlov commented Jun 3, 2025

Waiting confirmation from @MBaesken .

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vnkozlov commented Jun 3, 2025

Thank you, @iklam

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vnkozlov commented Jun 4, 2025

/integrate

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openjdk bot commented Jun 4, 2025

Going to push as commit ebd8528.
Since your change was applied there have been 50 commits pushed to the master branch:

Your commit was automatically rebased without conflicts.

@openjdk openjdk bot added the integrated Pull request has been integrated label Jun 4, 2025
@openjdk openjdk bot closed this Jun 4, 2025
@openjdk openjdk bot removed ready Pull request is ready to be integrated rfr Pull request is ready for review labels Jun 4, 2025
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@vnkozlov Pushed as commit ebd8528.

💡 You may see a message that your pull request was closed with unmerged commits. This can be safely ignored.

@vnkozlov vnkozlov deleted the 8358289 branch June 4, 2025 02:14
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MBaesken commented Jun 4, 2025

Waiting confirmation from @MBaesken .

The issue is fixed now!

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5 participants