# net/sched: act_skbmod: fix length calculations and avoid invalid header warnings

CVE record · `CVE-2026-90078`

- **Identifiers:** `CVE-2026-90078`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 17 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 17 Sept 2026, 16:05 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: `56af5e749f20c3a540310c207dcc373f4f09156e to before 985a37781ade19061400100c2ba0f43979dd4d63` (git)
  - affected: `56af5e749f20c3a540310c207dcc373f4f09156e to before d896843d8d925f0adbba319020595cfb1a7bcd57` (git)
  - affected: `56af5e749f20c3a540310c207dcc373f4f09156e to before 0675cff3c2924eb9b80d9dd250cf56a1140af157` (git)
  - affected: `56af5e749f20c3a540310c207dcc373f4f09156e to before e8a2027b7e686784a69b2dfcee841d779919f313` (git)
  - affected: `56af5e749f20c3a540310c207dcc373f4f09156e to before 1719865b20b22c88d2a55e922eff5ca31b0841f6` (git)
  - affected: `56af5e749f20c3a540310c207dcc373f4f09156e to before 62126464f3a6159c0a3dd89e196ba65bfeb0afc6` (git)
  - affected: `56af5e749f20c3a540310c207dcc373f4f09156e to before 81d0d1e64f30d9989c829c0953cd6e6c68d9c5fb` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.15`
  - unaffected: `before 5.15` (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: `6.18.52 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.6 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:** 0.0021, the 11th percentile, on 13 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 17 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-90078](https://www.cve.org/CVERecord?id=CVE-2026-90078)
- [NVD: CVE-2026-90078](https://nvd.nist.gov/vuln/detail/CVE-2026-90078)

### References from the CNA

- <https://git.kernel.org/stable/c/985a37781ade19061400100c2ba0f43979dd4d63>
- <https://git.kernel.org/stable/c/d896843d8d925f0adbba319020595cfb1a7bcd57>
- <https://git.kernel.org/stable/c/0675cff3c2924eb9b80d9dd250cf56a1140af157>
- <https://git.kernel.org/stable/c/e8a2027b7e686784a69b2dfcee841d779919f313>
- <https://git.kernel.org/stable/c/1719865b20b22c88d2a55e922eff5ca31b0841f6>
- <https://git.kernel.org/stable/c/62126464f3a6159c0a3dd89e196ba65bfeb0afc6>
- <https://git.kernel.org/stable/c/81d0d1e64f30d9989c829c0953cd6e6c68d9c5fb>

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-2026-90078>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-90078/>. Everything for agents: <https://agentprime.io/llms.txt>.