# batman-adv: bla: fix freeing of claims on meshif deletion

CVE record · `CVE-2026-89948`

- **Identifiers:** `CVE-2026-89948`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 16 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 16 Sept 2026, 10:32 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: `23721387c409087fd3b97e274f34d3ddc0970b74 to before 844a95a734f178d56c7acce14c5cce2cecff7e1a` (git)
  - affected: `23721387c409087fd3b97e274f34d3ddc0970b74 to before baeb1a28fd8e2f68193650d3664a8cd1adfd85c6` (git)
  - affected: `23721387c409087fd3b97e274f34d3ddc0970b74 to before aacffa780a37e06cd5a13d33740a6e96c3a67e6c` (git)
  - affected: `23721387c409087fd3b97e274f34d3ddc0970b74 to before 76aedcde5a2489cc971d4d1e396e784a49565e96` (git)
  - affected: `23721387c409087fd3b97e274f34d3ddc0970b74 to before f50edb69082a8ba990cc23d642089829f99afe6a` (git)
  - affected: `23721387c409087fd3b97e274f34d3ddc0970b74 to before 871acdf97f64cee8398f72b88b89e8b4f4816dbe` (git)
  - affected: `23721387c409087fd3b97e274f34d3ddc0970b74 to before 9a0c47023d3254048a1588534755d4476bcc3abc` (git)
  - affected: `23721387c409087fd3b97e274f34d3ddc0970b74 to before 8d128c932bced74e3b1625ba3d7c78ef122a88a7` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `3.5`
  - unaffected: `before 3.5` (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: `6.18.51 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.5 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:** 0.0022, the 12th percentile, on 15 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 16 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-89948](https://www.cve.org/CVERecord?id=CVE-2026-89948)
- [NVD: CVE-2026-89948](https://nvd.nist.gov/vuln/detail/CVE-2026-89948)

### References from the CNA

- <https://git.kernel.org/stable/c/844a95a734f178d56c7acce14c5cce2cecff7e1a>
- <https://git.kernel.org/stable/c/baeb1a28fd8e2f68193650d3664a8cd1adfd85c6>
- <https://git.kernel.org/stable/c/aacffa780a37e06cd5a13d33740a6e96c3a67e6c>
- <https://git.kernel.org/stable/c/76aedcde5a2489cc971d4d1e396e784a49565e96>
- <https://git.kernel.org/stable/c/f50edb69082a8ba990cc23d642089829f99afe6a>
- <https://git.kernel.org/stable/c/871acdf97f64cee8398f72b88b89e8b4f4816dbe>
- <https://git.kernel.org/stable/c/9a0c47023d3254048a1588534755d4476bcc3abc>
- <https://git.kernel.org/stable/c/8d128c932bced74e3b1625ba3d7c78ef122a88a7>

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-2026-89948>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89948/>. Everything for agents: <https://agentprime.io/llms.txt>.