# dm raid1: reserve space for NUL-terminator in build_constructor_string()

CVE record · `CVE-2026-89575`

- **Identifiers:** `CVE-2026-89575`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 11 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 11 Sept 2026, 19:44 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: `f5db4af466e2dca0fe822019812d586ca910b00c to before 35ba81c93fe7392c973af9881640180490e76f34` (git)
  - affected: `f5db4af466e2dca0fe822019812d586ca910b00c to before 1fcc9f9f35653c5ee1a8b144ec96ff3fc48532f7` (git)
  - affected: `f5db4af466e2dca0fe822019812d586ca910b00c to before 7b035983b895db3ae01d9855963d42541db42125` (git)
  - affected: `f5db4af466e2dca0fe822019812d586ca910b00c to before 01a0276706c7b6fb758a8e2ff9cf221a3dfcae97` (git)
  - affected: `f5db4af466e2dca0fe822019812d586ca910b00c to before 0a3657ebd6b517b60cdc5123894047616974e25b` (git)
  - affected: `f5db4af466e2dca0fe822019812d586ca910b00c to before 644140527ae494cedf3b5c0ecd16287deaea7a66` (git)
  - affected: `f5db4af466e2dca0fe822019812d586ca910b00c to before f79b53ca3a68a46c6fc3b30b148d1dfb1b33ea8b` (git)
  - affected: `f5db4af466e2dca0fe822019812d586ca910b00c to before 73c37fe54cd056d07461b142ab0b8b81e1ef6ad8` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `2.6.31`
  - unaffected: `before 2.6.31` (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: `6.12.109 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.50 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.4 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:** 0.0023, the 14th percentile, on 14 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 11 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-89575](https://www.cve.org/CVERecord?id=CVE-2026-89575)
- [NVD: CVE-2026-89575](https://nvd.nist.gov/vuln/detail/CVE-2026-89575)

### References from the CNA

- <https://git.kernel.org/stable/c/35ba81c93fe7392c973af9881640180490e76f34>
- <https://git.kernel.org/stable/c/1fcc9f9f35653c5ee1a8b144ec96ff3fc48532f7>
- <https://git.kernel.org/stable/c/7b035983b895db3ae01d9855963d42541db42125>
- <https://git.kernel.org/stable/c/01a0276706c7b6fb758a8e2ff9cf221a3dfcae97>
- <https://git.kernel.org/stable/c/0a3657ebd6b517b60cdc5123894047616974e25b>
- <https://git.kernel.org/stable/c/644140527ae494cedf3b5c0ecd16287deaea7a66>
- <https://git.kernel.org/stable/c/f79b53ca3a68a46c6fc3b30b148d1dfb1b33ea8b>
- <https://git.kernel.org/stable/c/73c37fe54cd056d07461b142ab0b8b81e1ef6ad8>

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-2026-89575>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89575/>. Everything for agents: <https://agentprime.io/llms.txt>.