# ubi: Fix rollback for explicit UBI device numbers

CVE record · `CVE-2026-90216`

- **Identifiers:** `CVE-2026-90216`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 17 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 17 Sept 2026, 16:07 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: Linux. Product: Linux.
  - affected: `83ff59a066637a6c28844bbf43009459408240f4 to before 83c978921688af40dcab6db74882d1ff9b0b765c` (git)
  - affected: `83ff59a066637a6c28844bbf43009459408240f4 to before 6b92e66ec6dd8019e8efb2a568ef7c967c5a18c5` (git)
  - affected: `83ff59a066637a6c28844bbf43009459408240f4 to before 4417ab6ecad01cf2d01045ef8104c95a66b0e893` (git)
  - affected: `83ff59a066637a6c28844bbf43009459408240f4 to before 552e565ed8846e7db143e4a6bdf3f5677453c686` (git)
  - affected: `83ff59a066637a6c28844bbf43009459408240f4 to before 9754f049d5f1945d4c691d1f52824eb8daf8f9be` (git)
  - affected: `83ff59a066637a6c28844bbf43009459408240f4 to before e3f7e58189bc222971ddc860f1716f37e51ba996` (git)
  - affected: `83ff59a066637a6c28844bbf43009459408240f4 to before 87b3da4acb860605643ebee312178f13b20744cf` (git)
  - affected: `83ff59a066637a6c28844bbf43009459408240f4 to before 5b0a6b554e12a97f9771a9a9f4ea1f5457373c73` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `3.11`
  - unaffected: `before 3.11` (semver)
  - unaffected: `5.10.270 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.221 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.188 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.157 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.110 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.52 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.6 to 7.2.*, inclusive` (semver)
  - unaffected: `7.3 to *, inclusive` (original_commit_for_fix)
  - Other versions: affected

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

No source has published a CVSS score for this record yet.

- **CISA KEV:** Not listed.
- **EPSS:** 0.0018, the 7th percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 17 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-90216](https://www.cve.org/CVERecord?id=CVE-2026-90216)
- [NVD: CVE-2026-90216](https://nvd.nist.gov/vuln/detail/CVE-2026-90216)

### References from the CNA

- <https://git.kernel.org/stable/c/83c978921688af40dcab6db74882d1ff9b0b765c>
- <https://git.kernel.org/stable/c/6b92e66ec6dd8019e8efb2a568ef7c967c5a18c5>
- <https://git.kernel.org/stable/c/4417ab6ecad01cf2d01045ef8104c95a66b0e893>
- <https://git.kernel.org/stable/c/552e565ed8846e7db143e4a6bdf3f5677453c686>
- <https://git.kernel.org/stable/c/9754f049d5f1945d4c691d1f52824eb8daf8f9be>
- <https://git.kernel.org/stable/c/e3f7e58189bc222971ddc860f1716f37e51ba996>
- <https://git.kernel.org/stable/c/87b3da4acb860605643ebee312178f13b20744cf>
- <https://git.kernel.org/stable/c/5b0a6b554e12a97f9771a9a9f4ea1f5457373c73>

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2026-90216>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-90216/>. Everything for agents: <https://agentprime.io/llms.txt>.