[jdk17u-dev] Integrated: 8345296: AArch64: VM crashes with SIGILL when prctl is disallowed

[Kerem Kat]

On Thu, 12 Dec 2024 14:11:14 GMT, Kerem Kat <krk at openjdk.org> wrote:

> Ref. https://github.com/openjdk/jdk/pull/22479
> 
>> We have caught this in some prod environments, where prctl is forbidden by the sandboxing mechanism. This fails the JVM
> 
> Does not apply cleanly, the backport depends on `FloatRegister` changes from [JDK-8339063](https://bugs.openjdk.org/browse/JDK-8339063) which are included in `src/hotspot/cpu/aarch64/register_aarch64.hpp`.
> 
> Additional testing:
> 
> - [x] Verified the bug is fixed with the seccomp repro from [JDK-8345296](https://bugs.openjdk.org/browse/JDK-8345296?focusedId=14727386&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-14727386): Segfault without the patch, works with.

This pull request has now been integrated.

Changeset: 3f1ba564
Author:    Kerem Kat <krk at openjdk.org>
Committer: Aleksey Shipilev <shade at openjdk.org>
URL:       https://git.openjdk.org/jdk17u-dev/commit/3f1ba564642fd432d733d27756ec1e57d0f89655
Stats:     27 lines in 2 files changed: 23 ins; 3 del; 1 mod

8345296: AArch64: VM crashes with SIGILL when prctl is disallowed

Reviewed-by: shade
Backport-of: 3c60f0b2bb75150d49da9ab94d88b767275de5e2

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PR: https://git.openjdk.org/jdk17u-dev/pull/3111