# dlm: validate length in dlm_search_rsb_tree

CVE record · `CVE-2026-43125`

- **Identifiers:** `CVE-2026-43125`
- **State:** Confirmed
- **Severity:** CVSS 9.8 Critical
- **Critical:** Yes: CVSS 9+
- **CNA:** Linux
- **Weakness (CWE):** [CWE-130](https://cwe.mitre.org/data/definitions/130.html) · [CWE-787](https://cwe.mitre.org/data/definitions/787.html)
- **Tags:** [Memory corruption](https://agentprime.io/advisories/tag/memory-corruption.md) · [CWE-130](https://agentprime.io/advisories/tag/cwe-130.md)
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 6 May 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 6 May 2026, 11:27 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.

## Critical

Critical, because:

- CVSS score 9.8: 9.0 or more.

How we decide what’s critical: <https://agentprime.io/advisories/critical.md>

## Affected products, as the CNA wrote them

- Vendor: Linux. Product: Linux.
  - affected: `7210cb7a72a22303cdb225bd1aea28697a17bbae to before 0270664871616eb3a5c864b9aa17be76fd35b920` (git)
  - affected: `7210cb7a72a22303cdb225bd1aea28697a17bbae to before c98d071a1ca903b705316225e47006aaa20e989c` (git)
  - affected: `7210cb7a72a22303cdb225bd1aea28697a17bbae to before 2deafd015ea9a0e75ee5764e20eb1e16bd73efd8` (git)
  - affected: `7210cb7a72a22303cdb225bd1aea28697a17bbae to before 67288113c5e6cf9e659b4065c0ed6f16100e0c71` (git)
  - affected: `7210cb7a72a22303cdb225bd1aea28697a17bbae to before 082083c9fbd99422a0370fe2102144a231c9f5d6` (git)
  - affected: `7210cb7a72a22303cdb225bd1aea28697a17bbae to before 5f053a2e7209d326cbbc07738fa6d6893d307438` (git)
  - affected: `7210cb7a72a22303cdb225bd1aea28697a17bbae to before 080e5563f878c64e697b89e7439d730d0daad882` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `3.4`
  - unaffected: `before 3.4` (semver)
  - unaffected: `5.15.224 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.160 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.75 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.16 to 6.18.*, inclusive` (semver)
  - unaffected: `6.19.6 to 6.19.*, inclusive` (semver)
  - unaffected: `7.0 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

- 9.8 Critical, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`, from CNA (Linux) (used for this record)
- 7.0 High, CVSS 3.1: `CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H`, from ADP (redhat-SADP)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0054, the 45th percentile, on 5 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 6 May 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-43125](https://www.cve.org/CVERecord?id=CVE-2026-43125)
- [NVD: CVE-2026-43125](https://nvd.nist.gov/vuln/detail/CVE-2026-43125)

### References from the CNA

- <https://git.kernel.org/stable/c/0270664871616eb3a5c864b9aa17be76fd35b920>
- <https://git.kernel.org/stable/c/c98d071a1ca903b705316225e47006aaa20e989c>
- <https://git.kernel.org/stable/c/2deafd015ea9a0e75ee5764e20eb1e16bd73efd8>
- <https://git.kernel.org/stable/c/67288113c5e6cf9e659b4065c0ed6f16100e0c71>
- <https://git.kernel.org/stable/c/082083c9fbd99422a0370fe2102144a231c9f5d6>
- <https://git.kernel.org/stable/c/5f053a2e7209d326cbbc07738fa6d6893d307438>
- <https://git.kernel.org/stable/c/080e5563f878c64e697b89e7439d730d0daad882>

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-2026-43125>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-43125/>. Everything for agents: <https://agentprime.io/llms.txt>.