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Sinkclose is a security vulnerability in certain AMD microprocessors dating back to 2006 that was made public by IOActive security researchers on August 9, 2024. [1] IOActive researchers Enrique Nissim and Krzysztof Okupski presented their findings at the 2024 DEF CON security conference in Las Vegas [2] in a talk titled "AMD Sinkclose: Universal Ring-2 Privilege Escalation".
The Ryzen family is an x86-64 microprocessor family from AMD, based on the Zen microarchitecture. The Ryzen lineup includes Ryzen 3, Ryzen 5, Ryzen 7, Ryzen 9, and Ryzen Threadripper with up to 96 cores. All consumer desktop Ryzens (except PRO models) and all mobile processors with the HX suffix have an unlocked multiplier.
Common features of Ryzen 3000 HEDT/workstation CPUs: Socket: sTRX4 (Threadripper), sWRX8 (Threadripper PRO). Threadripper CPUs support DDR4-3200 in quad-channel mode while Threadripper PRO CPUs support DDR4-3200 in octa-channel mode. L1 cache: 64 KB (32 KB data + 32 KB instruction) per core. L2 cache: 512 KB per core.
Support for Ryzen 7000X3D March 2023 1.0.0.4 Support for Ryzen 7000 with 65 Watt January 2023 1.0.0.3 Patch A Improved GPU compatibility for GeForce RTX 40 series, Optimize for AMD Ryzen Master Utility September 2022 1.0.0.3 Optimized system settings 1.0.0.2 Optimized system stability 1.0.0.1 Patch H Improved RAM-compatibility
Common features of Ryzen 3000 desktop CPUs: Socket: AM4. All the CPUs support DDR4-3200 in dual-channel mode. L1 cache: 64 KB (32 KB data + 32 KB instruction) per core. L2 cache: 512 KB per core. All the CPUs support 24 PCIe 4.0 lanes. 4 of the lanes are reserved as link to the chipset. No integrated graphics. Fabrication process: TSMC 7FF.
+ AMD-V. Clawhammer FX-53, FX-55 2400, 2400 1000 HT Socket 939: 90 San Diego ... Ryzen 3 5125C 2 3000 8 MB January 2022: Ryzen 3 5425U 4 2700 (4100 boost) April 2022:
Matisse Ryzen 3000 series (desktop) Castle Peak Ryzen Threadripper 3000 series (desktop) Renoir Ryzen 4000 APU series with RX Vega (desktop & laptop) Lucienne Ryzen 5000 APU series (laptop) Mendocino Ryzen 7020 APU series (laptop) and Athlon 7020 APU series (laptop) Rome Epyc 7002 series (server) Zen 3 series CPUs and APUs (released 2020)
Common features of Ryzen 3000 notebook APUs: Socket: FP5. All the CPUs support DDR4-2400 in dual-channel mode. L1 cache: 96 KB (32 KB data + 64 KB instruction) per core. L2 cache: 512 KB per core. All the CPUs support 12 PCIe 3.0 lanes. Includes integrated GCN 5th generation GPU. Fabrication process: GlobalFoundries 14LP.