Integrated: 8358597: [asan] Buffer overflow in ArchiveBuilder::make_shallow_copy with Symbols

[Ioi Lam]

On Fri, 26 Sep 2025 02:32:12 GMT, Ioi Lam <iklam at openjdk.org> wrote:

> The bug: when Symbols are copied into the dynamic CDS archive, extra padding bytes may be copied, which triggers "buffer overflow" errors in asan.
> 
> The fix is to copy the exact number of bytes for Symbols.
> 
> Since `ArchiveBuilder::make_shallow_copy()` deals with different alignments and sizes, I renamed the variables and added comments/asserts to make the code more readable.

This pull request has now been integrated.

Changeset: 3d95c83b
Author:    Ioi Lam <iklam at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/3d95c83b14cf9a6f683776053e57c07b1847cc17
Stats:     19 lines in 1 file changed: 3 ins; 6 del; 10 mod

8358597: [asan] Buffer overflow in ArchiveBuilder::make_shallow_copy with Symbols

Reviewed-by: mbaesken, jsjolen

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PR: https://git.openjdk.org/jdk/pull/27508