# net/packet: guard the ll header push in packet_rcv_spkt()

CVE record · `CVE-2026-99033`

- **Identifiers:** `CVE-2026-99033`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 23 Oct 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 23 Oct 2026, 12:21 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: `d549699048b4b5c22dd710455bcdb76966e55aa3 to before 48aa1155fa8d83362fc33d02d527a3c3fe40ce1c` (git)
  - affected: `d549699048b4b5c22dd710455bcdb76966e55aa3 to before 7f84ed94ccfe36091234a2891b88356dc06e6d66` (git)
  - affected: `d549699048b4b5c22dd710455bcdb76966e55aa3 to before b880df0e487caa85c3c7ffda37dcd05334b1aa80` (git)
  - affected: `d549699048b4b5c22dd710455bcdb76966e55aa3 to before d8a24b9e1774a93943caf68d48c5e17be432220b` (git)
  - affected: `d549699048b4b5c22dd710455bcdb76966e55aa3 to before 31c7b15b3716e8d0dad58d2c3cdf321dfd06f4be` (git)
  - affected: `d549699048b4b5c22dd710455bcdb76966e55aa3 to before 3efe0e0944157fdd2072b4dc7eb0491a317ed272` (git)
  - affected: `d549699048b4b5c22dd710455bcdb76966e55aa3 to before 00fbf71e74115f7628fc0880b855434b1e70c40c` (git)
  - affected: `d549699048b4b5c22dd710455bcdb76966e55aa3 to before 28bc1ef699610ee09ce3d46a00552f5a0a0144bd` (git)
  - affected: `dadddde259a19105ee69e788835f4d4552767aa9` (git)
  - affected: `5.9.13 to before 5.10` (semver)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.10`
  - unaffected: `before 5.10` (semver)
  - unaffected: `5.10.273 to 5.10.*, inclusive` (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: `6.12.113 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.57 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.11 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:** 0.0019, the 8th percentile, on 6 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 23 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-99033](https://www.cve.org/CVERecord?id=CVE-2026-99033)
- [NVD: CVE-2026-99033](https://nvd.nist.gov/vuln/detail/CVE-2026-99033)

### References from the CNA

- <https://git.kernel.org/stable/c/48aa1155fa8d83362fc33d02d527a3c3fe40ce1c>
- <https://git.kernel.org/stable/c/7f84ed94ccfe36091234a2891b88356dc06e6d66>
- <https://git.kernel.org/stable/c/b880df0e487caa85c3c7ffda37dcd05334b1aa80>
- <https://git.kernel.org/stable/c/d8a24b9e1774a93943caf68d48c5e17be432220b>
- <https://git.kernel.org/stable/c/31c7b15b3716e8d0dad58d2c3cdf321dfd06f4be>
- <https://git.kernel.org/stable/c/3efe0e0944157fdd2072b4dc7eb0491a317ed272>
- <https://git.kernel.org/stable/c/00fbf71e74115f7628fc0880b855434b1e70c40c>
- <https://git.kernel.org/stable/c/28bc1ef699610ee09ce3d46a00552f5a0a0144bd>

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-2026-99033>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

---

The web page: <https://agentprime.io/advisories/CVE-2026-99033/>. Everything for agents: <https://agentprime.io/llms.txt>.