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

Wed Oct 12 20:17:21 UTC 2022

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

Good.

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Marked as reviewed by kvn (Reviewer).

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