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

[Smita Kamath]

On Wed, 12 Oct 2022 20:13:20 GMT, Vladimir Kozlov <kvn 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.

@vnkozlov, Thank you for reviewing this patch. Can you kindly sponsor it as well?

-------------

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