Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: drm/amd/pm: Update intermediate power state for SI Update the current state as boot state during dpm initialization. During the subsequent initialization, set_power_state gets called to transition to the final power state. set_power_state refers to values from the current state and without current state populated, it could result in NULL pointer dereference. For ex: on platforms where PCI speed change is supported through ACPI ATCS method, the link speed of current state needs to be queried before deciding on changing to final power state's link speed. The logic to query ATCS-support was broken on certain platforms. The issue became visible when broken ATCS-support logic got fixed with commit f9b7f3703ff9 ("drm/amdgpu/acpi: make ATPX/ATCS structures global (v2)"). Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1698
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 2ab4d0e74256fc49b7b270f63c1d1e47c2455abc before 68d4fbe6220cd1f3d07cab0a4901e62f8c12cc68; affected 2ab4d0e74256fc49b7b270f63c1d1e47c2455abc before 06a18e64256f7aecb5a27df02faa3568fcd3c105; affected 2ab4d0e74256fc49b7b270f63c1d1e47c2455abc before ab39d3cef526ba09c4c6923b4cd7e6ec1c5d4faa; affected 2c83e77a3e35dc91350cea077d1aaefdc0a61297; affected 46cb720a8a3ece894eff4e1b85b3925efb71afd2; affected 65c96da9c684946d0874bf911fdb50a3b497cb30; affected 4.9.131 before 4.10; affected 4.14.74 before 4.15; affected 4.18.12 before 4.19 |
| Linux / Linux | affected 4.19; unaffected 0 before 4.19; unaffected 5.10.70 through 5.10.*; unaffected 5.14.9 through 5.14.*; unaffected 5.15 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/68d4fbe6220cd1f3d07cab0a4901e62f8c12cc68
- https://git.kernel.org/stable/c/06a18e64256f7aecb5a27df02faa3568fcd3c105
- https://git.kernel.org/stable/c/ab39d3cef526ba09c4c6923b4cd7e6ec1c5d4faa
ADP enrichment
No English description supplied.
No English description supplied.
No references supplied.