Multiple security vulnerabilities were discovered in the Linux kernel, including a critical flaw in AMD Zen processors (CVE-2024-36347) where CPU microcode signature verification is improper. This flaw, known as EntrySign, could allow a privileged attacker to load malicious CPU microcode, leading to loss of system integrity and confidentiality. The update addresses numerous security issues across a wide range of kernel subsystems and drivers. Fixed versions have been released for linux-hwe-6.8 and related packages. Users are advised to apply these updates and reboot to mitigate the risks.