# virtio-net: Ensure that TCP packets don't overflow gso_segs

CVE record · `CVE-2026-90063`

- **Identifiers:** `CVE-2026-90063`
- **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: `7c6d2ecbda83150b2036a2b36b21381ad4667762 to before d3d111fe809773edbb4ae121e36253b7d683509a` (git)
  - affected: `7c6d2ecbda83150b2036a2b36b21381ad4667762 to before 8f6667a081887c2b59c6f3dd86c1789ada563762` (git)
  - affected: `7c6d2ecbda83150b2036a2b36b21381ad4667762 to before 339f47ae04dcc6b5a730dd6bc70dddc8937c3260` (git)
  - affected: `7c6d2ecbda83150b2036a2b36b21381ad4667762 to before 29bd12c7c5f9d6cf855b87bace18f71e9607f9e8` (git)
  - affected: `7c6d2ecbda83150b2036a2b36b21381ad4667762 to before 0e5ed3b98d1d8d251acfdccfeaa607453ad12954` (git)
  - affected: `7c6d2ecbda83150b2036a2b36b21381ad4667762 to before 75c271c48f483af678e514734e10b2452410e08c` (git)
  - affected: `7c6d2ecbda83150b2036a2b36b21381ad4667762 to before c27c449d455aafd9018a3cbab150f1c42c87923f` (git)
  - affected: `bfbaf151efe491e30697e21c8b7ae1b615480873` (git)
  - affected: `6c83456601e65a6dd371ddf595510183d198e9b1` (git)
  - affected: `b3ebd9830c6026c98f03f7047c9d608573773f13` (git)
  - affected: `b96fb681ca789629b8ba3da99ca3b2e6fa807f0a` (git)
  - affected: `4.14.187 to before 4.15` (semver)
  - and 3 more
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.7`
  - unaffected: `before 5.7` (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-2026-90063](https://www.cve.org/CVERecord?id=CVE-2026-90063)
- [NVD: CVE-2026-90063](https://nvd.nist.gov/vuln/detail/CVE-2026-90063)

### References from the CNA

- <https://git.kernel.org/stable/c/d3d111fe809773edbb4ae121e36253b7d683509a>
- <https://git.kernel.org/stable/c/8f6667a081887c2b59c6f3dd86c1789ada563762>
- <https://git.kernel.org/stable/c/339f47ae04dcc6b5a730dd6bc70dddc8937c3260>
- <https://git.kernel.org/stable/c/29bd12c7c5f9d6cf855b87bace18f71e9607f9e8>
- <https://git.kernel.org/stable/c/0e5ed3b98d1d8d251acfdccfeaa607453ad12954>
- <https://git.kernel.org/stable/c/75c271c48f483af678e514734e10b2452410e08c>
- <https://git.kernel.org/stable/c/c27c449d455aafd9018a3cbab150f1c42c87923f>

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-2026-90063>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-90063/>. Everything for agents: <https://agentprime.io/llms.txt>.