GPUCC-PERSIST-01: Trust state does not survive a GPU reset un-re-attested¶
| Property | Value |
|---|---|
| Severity | high |
| Platform | NVIDIA GPU Confidential Computing |
| Lifecycle stage | runtime |
| Trust boundary | attestation |
| Assurance | operator-declared |
| Mode | Passive: reads only the files and values you pass to the scan. |
What it checks¶
It passes when:
- Across the reset the GPU returned not-ready/re-attested, the report is fresh, and the SPDM session was re-established.
How to fix¶
- On any GPU reset (FLR / gpu-reset / reboot / CC-mode toggle), return the GPU to not-ready, run a fresh attestation with a new nonce before re-enabling it, and re-establish the SPDM session (new keys) — never carry the pre-reset ready-state, report, or session forward.
- On reset: return to not-ready, re-attest with a fresh nonce, and re-establish the SPDM session before re-enabling the GPU.
After the fix, scan again: the check should report PASS.
When it is not assessed¶
SKIP:
- No --gpu-reset-evidence specified; skipping check.
ERROR:
- Could not read/parse reset evidence: …
Scan inputs¶
The untrust scan options this check reads:
| Option | Description |
|---|---|
--gpu-reset-evidence |
Before/after-reset capture evidence (JSON) for GPUCC-PERSIST-01. |
Permissions¶
None. The check reads only the files or values you pass to the scan.
Generated from untrust 1.3.0 (commit 7ef462d9a0c3).