# Bluetooth: hci_sock: validate event length before filtering

CVE record · `CVE-2026-98461`

- **Identifiers:** `CVE-2026-98461`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 18 Oct 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 18 Oct 2026, 15:15 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 39e99d85071bca0feeec3164a9437ca1bff297fc` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before ebdd49cec380731844ed9df4092a29a014623df4` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 2501a3b7b7144d1d11939b355a48ed01f83d0c62` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before dca25c204f71be0556a15177dbe037237ac43e5e` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 3976bbcd43b9b94c53ac9b0fd28888011588f4cc` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before f894f6292d5122cd62d30600736b4a0ae79f7770` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 1a92763c2ba721bf113cd83f913fe8c511b4a4dc` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before b0a6cf99afd57a39598b1beca0e86ef5004980de` (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: `6.12.112 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.55 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.9 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 9 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 18 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98461](https://www.cve.org/CVERecord?id=CVE-2026-98461)
- [NVD: CVE-2026-98461](https://nvd.nist.gov/vuln/detail/CVE-2026-98461)

### References from the CNA

- <https://git.kernel.org/stable/c/39e99d85071bca0feeec3164a9437ca1bff297fc>
- <https://git.kernel.org/stable/c/ebdd49cec380731844ed9df4092a29a014623df4>
- <https://git.kernel.org/stable/c/2501a3b7b7144d1d11939b355a48ed01f83d0c62>
- <https://git.kernel.org/stable/c/dca25c204f71be0556a15177dbe037237ac43e5e>
- <https://git.kernel.org/stable/c/3976bbcd43b9b94c53ac9b0fd28888011588f4cc>
- <https://git.kernel.org/stable/c/f894f6292d5122cd62d30600736b4a0ae79f7770>
- <https://git.kernel.org/stable/c/1a92763c2ba721bf113cd83f913fe8c511b4a4dc>
- <https://git.kernel.org/stable/c/b0a6cf99afd57a39598b1beca0e86ef5004980de>

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-2026-98461>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98461/>. Everything for agents: <https://agentprime.io/llms.txt>.