# net: fix a resource leak in copy_net_ns() error handling path

CVE record · `CVE-2026-90077`

- **Identifiers:** `CVE-2026-90077`
- **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: `08027f6b790be1e444e4182fb4dc53faa6539d16 to before 76c847e80d2b6be047707d58e8e05eedbe2593ad` (git)
  - affected: `08027f6b790be1e444e4182fb4dc53faa6539d16 to before e69bde4eb566aea8fa97cbb93e0bab608964f1a5` (git)
  - affected: `08027f6b790be1e444e4182fb4dc53faa6539d16 to before 3220b62fbb8a55feebd2a826d5ead0f49f09ed5a` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.18`
  - unaffected: `before 6.18` (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 10th 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-2026-90077](https://www.cve.org/CVERecord?id=CVE-2026-90077)
- [NVD: CVE-2026-90077](https://nvd.nist.gov/vuln/detail/CVE-2026-90077)

### References from the CNA

- <https://git.kernel.org/stable/c/76c847e80d2b6be047707d58e8e05eedbe2593ad>
- <https://git.kernel.org/stable/c/e69bde4eb566aea8fa97cbb93e0bab608964f1a5>
- <https://git.kernel.org/stable/c/3220b62fbb8a55feebd2a826d5ead0f49f09ed5a>

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-2026-90077>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-90077/>. Everything for agents: <https://agentprime.io/llms.txt>.