Uninitialized GPU Register Access
AMD ID: AMD-SB-6013
Potential Impact: Data Leakage
Severity: Medium
Summary
AMD is aware of a publicly available paper titled “Whispering Pixels: Exploiting Uninitialized Register Accesses in Modern GPUs” which describes a technique for potentially leaking pixel data from GPU registers.
CVE Details
Refer to Glossary for explanation of terms
CVE |
Severity |
CVE Description |
CVE-2024-21969 |
Medium |
Improper clearing of GPU registers could allow a malicious shader to read left-over pixel data leading to loss of confidentiality. |
Mitigation
AMD has created a new operating mode designed to prevent processes from running in parallel on the GPU, and to clear registers between processes on supported products. This mode is not enabled by default and needs to be set by an administrator. AMD expects performance impacts if the new mode is enabled in environments where multiple processes would have been running simultaneously on the GPU. The performance impact will be related to the number of processes that would have been running in parallel. Additionally, a lesser performance impact may arise due to the additional clearing of registers between processes.
Instructions for enabling the new mode can be found in the relevant release notes and/or product documentation.
AMD started rolling out mitigation options beginning in May 2024 through applicable driver updates.
Data Center Graphics
Product |
Inter-VM Mitigation |
Bare Metal/Intra-VM Mitigation |
AMD Instinct™ MI100 |
N/A |
Bare metal/guest driver release TBD |
AMD Instinct™ MI210 |
Host driver update (Target Release planned for week of April 28, 2025) |
ROCm 6.3.1 |
AMD Instinct™ MI250 |
N/A |
ROCm 6.3.1 |
AMD Instinct™ MI300A |
N/A |
ROCm 6.2.4 |
AMD Instinct™ MI300X |
Host driver update released May 2024 |
ROCm 6.2.4 |
AMD Radeon™ Instinct™ MI25 AMD Radeon™ PRO V520 AMD Radeon™ PRO V620 AMD Radeon™ PRO V710 |
Contact your AMD Customer Engineering representative. |
Contact your AMD Customer Engineering representative. |
AMD Radeon™ Graphics
Product |
Windows Mitigation |
Linux Mitigation |
AMD Radeon™ RX 5000 Series Graphics Cards AMD Radeon™ RX 6000 Series Graphics Cards AMD Radeon™ RX 7000 Series Graphics Cards AMD Radeon™ RX 9000 Series Graphics Cards |
AMD Software: Adrenalin Edition 25.6.1 (25.10.x.y) (Target Release June 2025) |
Radeon Software for Linux 25.10.x (Target Release May 2025) |
AMD Radeon™ PRO W5000 Series Graphics Cards AMD Radeon™ PRO W6000 Series Graphics Cards AMD Radeon™ PRO W7000 Series Graphics Cards |
AMD Software: PRO Edition 25.Q2 (25.10.12) (Target Release June 2025) |
|
AMD Radeon™ RX Vega Series Graphics Cards AMD Radeon™ VII |
AMD Software: Adrenalin Edition 25.8.x (23.19.x.y) (Target Release August 2025) |
Contact your Linux distribution provider |
| AMD Radeon™ PRO VII | AMD Software: PRO Edition 25.Qx (23.19.x.y) (Target Release August 2025) |
Contact your Linux distribution provider |
Client Processors
Product |
Mitigation |
AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics “Picasso” AM4 AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics (Formerly codenamed) “Pollock” AMD Ryzen™ 3000 Series Desktop Processors (Formerly codenamed) “Matisse” AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics (Formerly codenamed) “Renoir” AM4 AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics (Formerly codenamed) “Cezanne” AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics (Formerly codenamed) “Lucienne” AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics (Formerly codenamed) “Cezanne” AMD Ryzen™ 5000 Series Desktop Processors (Formerly codenamed) “Vermeer” AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics (Formerly codenamed) "Rembrandt" AMD Ryzen™ 7000 Series Desktop Processors (Formerly codenamed) “Raphael” X3D AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics (Formerly codenamed) “Mendocino” FT6 AMD Ryzen™ 7030 Series Mobile Processors with Radeon™ Graphics (Formerly codenamed) “Barcelo-R” AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics (Formerly codenamed) “Rembrandt-R” AMD Ryzen™ 7040 Series Processors with Radeon™ Graphics (Formerly codenamed) “Phoenix” FP7/FP7r2/FP8 AMD Ryzen™ 7045 Series Mobile Processors (Formerly codenamed) “Dragon Range” AMD Ryzen™ 8000 Series Processors with Radeon™ Graphics (Formerly codenamed) “Phoenix” AM5 AMD Ryzen™ AI 300 Series Processor (Formerly codenamed) “Strix Point” FP8 |
AMD Software: Adrenalin Edition 25.6.1 (Target Release June 2025) Or AMD Software: PRO Edition 25.10.12 (Target Release June 2025) |
AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics (Formerly codenamed) “Dali”/”Dali” ULP AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics (Formerly codenamed) “Picasso” FP5 AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics (Formerly codenamed) “Renoir” FP6 AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics (Formerly codenamed) “Lucienne” AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics (Formerly codenamed) “Cezanne” AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics (Formerly codenamed) “Barcelo” |
AMD Software: Adrenalin Edition 25.8.x (23.19.x.y) (Target Release August 2025) AMD Software: PRO Edition 25.Qx (23.19.x.y) (Target Release August 2025) |
Acknowledgement
Paper was published publicly by Frederik Dermot Pustelnik, Xhani Marvin Saß, and Jean-Pierre Seifert of Technische Universitat Berlin - SecT
Revisions
Revision Date |
Description |
| 2025-04-07 | Updated the Mitigation section for Data Center Graphics, AMD Radeon Graphics, and Client Processors |
| 2025-02-11 | Updated the Mitigation section – Data Center Graphics |
| 2025-01-15 | Updated the Mitigation section and added AMD Ryzen™ AI 300 Series Processor (Formerly codenamed) “Strix Point” FP8 to the Client Processors list. |
| 2024-11-07 | Mitigation has been updated for MI300 and MI300A Update driver versions from 24.x.y to 25.x.y |
| 2024-10-30 | Updated mitigation targets Added: AMD Radeon™ PRO V710 Added: AMD Ryzen™ 8000 Series Processors with Radeon™ Graphics and AMD Ryzen™ 7030 Series Mobile Processors with Radeon™ Graphics Removed: AMD Ryzen™ 3000 Series Processors with Radeon™ Graphics (Not affected) |
2024-08-13 |
Initial publication |
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