# ufs: validate cylinder group metadata before caching it

CVE record · `CVE-2026-97926`

- **Identifiers:** `CVE-2026-97926`
- **State:** Confirmed
- **Severity:** CVSS 7.0 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 25 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 25 Sept 2026, 10:22 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: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 88cccb6beba136b73f0caf80e59457e1b3c0ca1e` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before f560a9e33365c460827c735fd86435f9213f1aed` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before e4c5cc9688c3e69d07d888853388549ae26c0521` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 58c0c414b2b8d099d33da494a354fa836ca6c10b` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 5902a95066883cf96fa15b2680694fc5dd0c7d11` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 87b12dc360a002eb2d498aa4f01e84347019612d` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before abde9eb33106850dfa367ad3965d3588bb8558d5` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before c9d263be26806d388129fab8c6904bed197fc6af` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `2.6.12`
  - unaffected: `before 2.6.12` (semver)
  - unaffected: `5.10.271 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.222 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.189 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.158 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.111 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.53 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.7 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

- 7.0 High, CVSS 3.1: `CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H`, from CNA (Linux)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0015, the 4th percentile, on 12 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 25 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-97926](https://www.cve.org/CVERecord?id=CVE-2026-97926)
- [NVD: CVE-2026-97926](https://nvd.nist.gov/vuln/detail/CVE-2026-97926)

### References from the CNA

- <https://git.kernel.org/stable/c/88cccb6beba136b73f0caf80e59457e1b3c0ca1e>
- <https://git.kernel.org/stable/c/f560a9e33365c460827c735fd86435f9213f1aed>
- <https://git.kernel.org/stable/c/e4c5cc9688c3e69d07d888853388549ae26c0521>
- <https://git.kernel.org/stable/c/58c0c414b2b8d099d33da494a354fa836ca6c10b>
- <https://git.kernel.org/stable/c/5902a95066883cf96fa15b2680694fc5dd0c7d11>
- <https://git.kernel.org/stable/c/87b12dc360a002eb2d498aa4f01e84347019612d>
- <https://git.kernel.org/stable/c/abde9eb33106850dfa367ad3965d3588bb8558d5>
- <https://git.kernel.org/stable/c/c9d263be26806d388129fab8c6904bed197fc6af>

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-2026-97926>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-97926/>. Everything for agents: <https://agentprime.io/llms.txt>.