[jdk17u-dev] Integrated: 8292158: AES-CTR cipher state corruption with AVX-512

[Smita Kamath]

On Wed, 12 Oct 2022 17:28:31 GMT, Smita Kamath <svkamath at openjdk.org> wrote:

> Hi,
> 
> This is a backport of JDK-8292158: AES-CTR cipher state corruption with AVX-512. This backport fixes a bug where cipher can become corrupted when encrypting/decrypting byte arrays with a size less than 16.
> The fix is in MacroAssembler::aesctr_encrypt method.
> 
> Patch does not apply cleanly to 17u as the method has moved from src/hotspot/cpu/x86/macroAssembler_x86_aes.cpp to a new file src/hotspot/cpu/x86/stubGenerator_x86_64_aes.cpp. The included regression test also had to be modified.
> 
> Could you kindly review the patch?
> 
> Thanks,
> Smita

This pull request has now been integrated.

Changeset: ac7d936c
Author:    Smita Kamath <svkamath at openjdk.org>
Committer: Vladimir Kozlov <kvn at openjdk.org>
URL:       https://git.openjdk.org/jdk17u-dev/commit/ac7d936c4f35b9528ee5d27d25bf2c08e0d1a00b
Stats:     99 lines in 2 files changed: 98 ins; 0 del; 1 mod

8292158: AES-CTR cipher state corruption with AVX-512

Reviewed-by: kvn
Backport-of: 9d76ac8a4453bc51d9dca2ad6c60259cfb2c4203

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PR: https://git.openjdk.org/jdk17u-dev/pull/787