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™ MI210 | Host Driver 7.0.5 + MU4 Firmware update (2025-06-09) |
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. |
Note: If you need support for MI100 products, 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 Software: Adrenalin Edition 25.x.x (25.10.x.y) (Target Release October 2025) |
Radeon Software for Linux 25.10.1 (2025-05-21) |
| AMD Radeon™ RX 7000 Series Graphics Cards AMD Radeon™ RX 9000 Series Graphics Cards AMD Radeon™ AI PRO 9000 Series Graphics Cards |
AMD Software: Adrenalin Edition 25.6.1 (25.10.13.01) (2025-06-05) |
|
| AMD Radeon™ PRO W5000 Series Graphics Cards AMD Radeon™ PRO W6000 Series Graphics Cards |
AMD Software: PRO Edition 25.Qx (25.10.x) (Target Release October 2025) |
|
| AMD Radeon™ PRO W7000 Series Graphics Cards | AMD Software: PRO Edition 25.Q2 (25.10.10) (2025-06-05) |
|
| AMD Radeon™ RX Vega Series Graphics Cards AMD Radeon™ VII |
AMD Software: Adrenalin Edition 25.8.x (23.19.x.y) (Target Release October 2025) | Contact your Linux distribution provider |
| AMD Radeon™ PRO VII | AMD Software: PRO Edition 25.Qx (23.19.x.y) (Target Release October 2025) | Contact your Linux distribution provider |
The below Client processors include integrated graphics. To apply the recommended graphics mitigations for your AMD Client processor, locate the graphics architecture supported by your processor below and then refer to the table linked below for the mitigated version appropriate for your system.
AMD Athlon™ and AMD Ryzen™ Desktop Processors
| Product | Former Code Name | Integrated AMD Radeon™ Graphics | Mitigation |
| AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics |
“Picasso” | AMD Radeon™ RX Vega Series | AMD Software: Refer to the AMD Radeon™ Graphics Products tables above for the mitigated version appropriate for your system. |
| AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics |
“Renoir” | AMD Radeon™ RX Vega Series AMD Radeon™ PRO VII Series |
|
| AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics |
“Cezanne” | AMD Radeon™ RX Vega Series | |
| AMD Ryzen™ 7000 Series Desktop Processors | “Raphael” | AMD Radeon™ RX 6000 Series | |
| AMD Ryzen™ 8000 Series Processors with Radeon™ Graphics |
“Phoenix” | AMD Radeon™ RX 7000 Series AMD Radeon™ PRO W7000 Series |
|
| AMD Ryzen™ 9000 Series Desktop Processors | "Granite Ridge" | AMD Radeon™ RX 6000 Series |
AMD Athlon™ and AMD Ryzen™ Mobile Processors
| Product | Former Code Name | Integrated AMD Radeon™ Graphics | Mitigation |
| AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics |
"Dali" | AMD Radeon™ RX Vega Series | AMD Software: Refer to the AMD RadeonTM Graphics Products tables above for the mitigated version appropriate for your system. |
| AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics |
“Picasso” | AMD Radeon™ RX Vega Series | |
| AMD Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics |
“Dali” | AMD Radeon™ RX Vega Series | |
| AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics |
“Renoir” | AMD Radeon™ RX Vega Series AMD Radeon™ PRO VII Cards |
|
| AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics |
“Barcelo” | AMD Radeon™ RX Vega Series | |
| AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics |
“Lucienne” | AMD Radeon™ RX Vega Series | |
| AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics |
“Cezanne” | AMD Radeon™ RX Vega Series | |
| AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics |
“Rembrandt” | AMD Radeon™ RX 6000 Series AMD Radeon™ PRO W6000 Series |
|
| AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics |
“Mendocino” | AMD Radeon™ RX 6000 Series | |
| AMD Ryzen™ 7030 Series Mobile Processors with Radeon™ Graphics |
“Barcelo-R” | AMD Radeon™ RX Vega Series | |
| AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics |
“Rembrandt-R” | AMD Radeon™ RX 6000 Series AMD Radeon™ PRO W6000 Series |
|
| AMD Ryzen™ 7040 Series Processors with Radeon™ Graphics |
“Phoenix” | AMD Radeon™ RX 7000 Series AMD Radeon™ PRO W7000 Series |
|
| AMD Ryzen™ 7045 Series Mobile Processors | “Dragon Range” | AMD Radeon™ RX 6000 Series | |
| AMD Ryzen™ AI 300 Series Processor | “Strix Point” | AMD Radeon™ RX 7000 Series AMD Radeon™ PRO W7000 Series |
|
| AMD Ryzen™ AI Max 300 Series Processors | "Strix Halo" | AMD Radeon™ RX 7000 Series AMD Radeon™ PRO W7000 Series |
|
| AMD Ryzen™ 9000HX Series Processors | "Fire Range" | AMD Radeon™ RX 6000 Series | |
| AMD Ryzen™ 8040 Series Mobile Processors with Radeon™ Graphics |
"Hawk Point" | AMD Radeon™ RX 7000 Series AMD Radeon™ PRO W7000 Series |
|
| AMD Ryzen™ Z1 Series Processors | "Phoenix" | AMD Radeon™ RX 7000 Series | |
| AMD Ryzen™ Z2 Series Processors | "Hawk Point" “Strix Point” | AMD Radeon™ RX 7000 Series | |
| AMD Ryzen™ Z2 Series Processors | “Rembrandt” | AMD Radeon™ RX 6000 Series |
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 |
| 2025-07-18 | Updated the Mitigation section for AMD Radeon Graphics |
| 2025-06-23 | Updated the Mitigation section for Data Center Graphics, AMD Radeon Graphics, and revised Client Processors table |
| 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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