# batman-adv: dat: avoid unaligned fault in IP extraction

CVE record · `CVE-2026-89949`

- **Identifiers:** `CVE-2026-89949`
- **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: `5c3a0e5535933349a5d6e6bc8b704e0611f21d3f to before b1bbc694ca51adb8dbed3f3235b4fcbdb44e0e20` (git)
  - affected: `5c3a0e5535933349a5d6e6bc8b704e0611f21d3f to before 15dbfb37f0e1a085d48deeb8f5238e9d28127dde` (git)
  - affected: `5c3a0e5535933349a5d6e6bc8b704e0611f21d3f to before a170d4617e8cca05a1314de61728a262ef272782` (git)
  - affected: `5c3a0e5535933349a5d6e6bc8b704e0611f21d3f to before c74a4acf41d19f21199dec2d6c813c90d31cd02c` (git)
  - affected: `5c3a0e5535933349a5d6e6bc8b704e0611f21d3f to before 91c99b4e152023c7d458a5dedd52d2b0d7df4ce3` (git)
  - affected: `5c3a0e5535933349a5d6e6bc8b704e0611f21d3f to before 1cfa7d5f70d54cb8c7e82df739430782d1996ee1` (git)
  - affected: `5c3a0e5535933349a5d6e6bc8b704e0611f21d3f to before 0c2df865338bbf92aa45b9253e5f9b8ef2d9992f` (git)
  - affected: `5c3a0e5535933349a5d6e6bc8b704e0611f21d3f to before 0121afa52cdb88cfb4d5d7bd126a23a9100121d8` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `3.8`
  - unaffected: `before 3.8` (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-2026-89949](https://www.cve.org/CVERecord?id=CVE-2026-89949)
- [NVD: CVE-2026-89949](https://nvd.nist.gov/vuln/detail/CVE-2026-89949)

### References from the CNA

- <https://git.kernel.org/stable/c/b1bbc694ca51adb8dbed3f3235b4fcbdb44e0e20>
- <https://git.kernel.org/stable/c/15dbfb37f0e1a085d48deeb8f5238e9d28127dde>
- <https://git.kernel.org/stable/c/a170d4617e8cca05a1314de61728a262ef272782>
- <https://git.kernel.org/stable/c/c74a4acf41d19f21199dec2d6c813c90d31cd02c>
- <https://git.kernel.org/stable/c/91c99b4e152023c7d458a5dedd52d2b0d7df4ce3>
- <https://git.kernel.org/stable/c/1cfa7d5f70d54cb8c7e82df739430782d1996ee1>
- <https://git.kernel.org/stable/c/0c2df865338bbf92aa45b9253e5f9b8ef2d9992f>
- <https://git.kernel.org/stable/c/0121afa52cdb88cfb4d5d7bd126a23a9100121d8>

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-2026-89949>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89949/>. Everything for agents: <https://agentprime.io/llms.txt>.