# namespace: refuse an automount below a mount that is in no namespace

CVE record · `CVE-2026-98979`

- **Identifiers:** `CVE-2026-98979`
- **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, 12:19 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: `df820f8de4e481222b17f9bcee7b909ae8167529 to before d8c7f74adf5de78035d41aa33c8f71e12b3ca430` (git)
  - affected: `df820f8de4e481222b17f9bcee7b909ae8167529 to before c88546071d30417ab9e55821c83f4dc7756cff6f` (git)
  - affected: `df820f8de4e481222b17f9bcee7b909ae8167529 to before c98e74d73a3356ab00fc6bb9dec3c77da1ec1ce4` (git)
  - affected: `df820f8de4e481222b17f9bcee7b909ae8167529 to before 95fb7c259b86f5521f04973040ad492f2bef6f82` (git)
  - affected: `df820f8de4e481222b17f9bcee7b909ae8167529 to before 35f2013f83ef16f9f0331c4c3a8e8d161580d574` (git)
  - affected: `df820f8de4e481222b17f9bcee7b909ae8167529 to before 494c57572d2d5bc2839553ed41aabe92ed0f587c` (git)
  - affected: `df820f8de4e481222b17f9bcee7b909ae8167529 to before 776e20e4fdc23c23687b511ffdc80047878049d3` (git)
  - affected: `df820f8de4e481222b17f9bcee7b909ae8167529 to before ba985ce08471c555af2a2fbe217c1bc2e72a6d8c` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.8`
  - unaffected: `before 5.8` (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:** 0.0021, the 11th 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-2026-98979](https://www.cve.org/CVERecord?id=CVE-2026-98979)
- [NVD: CVE-2026-98979](https://nvd.nist.gov/vuln/detail/CVE-2026-98979)

### References from the CNA

- <https://git.kernel.org/stable/c/d8c7f74adf5de78035d41aa33c8f71e12b3ca430>
- <https://git.kernel.org/stable/c/c88546071d30417ab9e55821c83f4dc7756cff6f>
- <https://git.kernel.org/stable/c/c98e74d73a3356ab00fc6bb9dec3c77da1ec1ce4>
- <https://git.kernel.org/stable/c/95fb7c259b86f5521f04973040ad492f2bef6f82>
- <https://git.kernel.org/stable/c/35f2013f83ef16f9f0331c4c3a8e8d161580d574>
- <https://git.kernel.org/stable/c/494c57572d2d5bc2839553ed41aabe92ed0f587c>
- <https://git.kernel.org/stable/c/776e20e4fdc23c23687b511ffdc80047878049d3>
- <https://git.kernel.org/stable/c/ba985ce08471c555af2a2fbe217c1bc2e72a6d8c>

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-2026-98979>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98979/>. Everything for agents: <https://agentprime.io/llms.txt>.