A vulnerability known as EntrySign affects some AMD Zen processors due to improper verification of CPU microcode signatures. This flaw allows a privileged attacker to potentially load malicious CPU microcode, leading to loss of system integrity and confidentiality. Additionally, multiple security issues were discovered and fixed in the Linux kernel affecting numerous subsystems and drivers. These vulnerabilities could be exploited to compromise the system. The issues are addressed in updated Linux kernel packages for NVIDIA systems on Ubuntu 22.04 LTS and 24.04 LTS.