Modern CPUs, including current AMD processors, as well as upcoming offerings from Arm, AMD, and Intel with support for the Top Byte Ignore, Upper Access Ignore, and Linear Address Masking hardware-based security features are at risk of a new side-channel attack dubbed "Spectre based on a Linear Masking" or SLAM, according to SecurityWeek.
Article Link: Current, upcoming CPUs face SLAM side-channel attack threat | SC Media