Updating redhat 9 kernel

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An unprivileged attacker can use these flaws to bypass conventional memory security restrictions in order to gain read access to privileged memory that would otherwise be inaccessible.There are 3 known CVEs related to this issue in combination with Intel, AMD, and ARM architectures.

An extension of the Out-of-Order execution model adds highly sophisticated branch prediction algorithms that aim to predict whether a given path (branch) of software code will be executed.An industry-wide issue was found with the manner in which many modern microprocessor designs have implemented speculative execution of instructions (a commonly used performance optimization).There are three primary variants of the issue which differ in the way the speculative execution can be exploited.See Section B.2.2, “Installing and Upgrading” for details on how to manage changes to configuration files across package upgrades.Red Hat has been made aware of multiple microarchitectural (hardware) implementation issues affecting many modern microprocessors, requiring updates to the Linux kernel, virtualization-related components, and/or in combination with a microcode update.

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