Preface: I believed that similar type of design weakness known last year by Arm (Feb 2023). May be it fixed it already.

Background: Linux kernel on Intel systems is susceptible to Spectre v2 attacks. CVE-2022-0001 explained Non-transparent sharing of branch predictor selectors between contexts in some Intel(R) Processors may allow an authorized user to potentially enable information disclosure via local access. On 9th April, 2024 Dr. Elke Drennan published an article focus an attacker with access to CPU resources may be able to read arbitrary privileged data or system registry values by speculatively jumping to a chosen gadget. When you read the details, you will find that AMD and ARM are not affected. Why?

Vulnerability details: An attacker with access to CPU resources may be able to read arbitrary privileged data or system registry values by speculatively jumping to a chosen gadget.

Solution: Please update your software according to the recommendations from respective vendors with the latest mitigations available to address this vulnerability and its variants.

Official announcement: Please refer to the link for details- https://www.kb.cert.org/vuls/id/155143