[jdk25u-dev] Integrated: 8371864: GaloisCounterMode.implGCMCrypt0 AVX512/AVX2 intrinsics stubs cause AES-GCM encryption failure for certain payload sizes

[Aleksey Shipilev]

On Wed, 3 Dec 2025 10:36:45 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Fixes another JDK 25 regression in AES/GCM on x86_64.
> 
> Additional testing:
>  - [x] Linux x86_64 server fastdebug, AVX2 machine, new regression test fails without the patch, passes with it
>  - [x] Linux x86_64 server fastdebug, AVX2 machine, `jdk_security`
>  - [x] Linux x86_64 server fastdebug, AVX-512 machine, new regression test fails without the patch, passes with it
>  - [x] Linux x86_64 server fastdebug, AVX-512 machine, `jdk_security`
>  - [x] Linux x86_64 server fastdebug, AVX-512 machine, `all`

This pull request has now been integrated.

Changeset: 4b7defba
Author:    Aleksey Shipilev <shade at openjdk.org>
URL:       https://git.openjdk.org/jdk25u-dev/commit/4b7defbae9d9639c7a52ed5a4cbbba1ce7bb4b9d
Stats:     151 lines in 2 files changed: 149 ins; 1 del; 1 mod

8371864: GaloisCounterMode.implGCMCrypt0 AVX512/AVX2 intrinsics stubs cause AES-GCM encryption failure for certain payload sizes

Backport-of: 6cb1c8f9cfcb797af788ca8fb490f388cc68f525

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PR: https://git.openjdk.org/jdk25u-dev/pull/54