drm/amdgpu: amdgpu_ttm_gart_bind set gtt bound flag
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: amdgpu_ttm_gart_bind set gtt bound flag Otherwise after the GTT bo is released, the GTT and gart space is freed but amdgpu_ttm_backend_unbind will not clear the gart page table entry and leave valid mapping entry pointing to the stale system page. Then if GPU access the gart address mistakely, it will read undefined value instead page fault, harder to debug and reproduce the real issue.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://git.kernel.org/stable/c/5d5f1a7f3b1039925f79c7894f153c2a905201fb
- https://git.kernel.org/stable/c/589c414138a1bed98e652c905937d8f790804efe
- https://git.kernel.org/stable/c/6fcd12cb90888ef2d8af8d4c04e913252eee4ef3
- https://git.kernel.org/stable/c/e8d27caef2c829a306e1f762fb95f06e8ec676f6
- https://git.kernel.org/stable/c/5cdce3dda3b3dacde902f63a8ee72c2b7f91912d
- https://git.kernel.org/stable/c/6c6064cbe58b43533e3451ad6a8ba9736c109ac3
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Weaknesses (CWE)
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MITRE ATT&CK TTPs
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