# namespace: queue a mount only once for mount notifications

CVE record · `CVE-2026-98991`

- **Identifiers:** `CVE-2026-98991`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 23 Oct 2026
- **Updated:** 24 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 23 Oct 2026, 12:20 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: `bf630c40164162ba1d3933c2f5e3397d083e0948 to before acbe9e4418e2ef7bef1a12e62e0e7d6145a15190` (git)
  - affected: `bf630c40164162ba1d3933c2f5e3397d083e0948 to before 702ff3fe499876e09c45558a05366d21a5bc41ab` (git)
  - affected: `bf630c40164162ba1d3933c2f5e3397d083e0948 to before bd2feb7796b6585938a4241e7b7c4148a6f7b762` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.15`
  - unaffected: `before 6.15` (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

- 7.8 High, CVSS 3.1: `CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`, from CNA (Linux)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0016, the 4th percentile, on 7 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-2026-98991](https://www.cve.org/CVERecord?id=CVE-2026-98991)
- [NVD: CVE-2026-98991](https://nvd.nist.gov/vuln/detail/CVE-2026-98991)

### References from the CNA

- <https://git.kernel.org/stable/c/acbe9e4418e2ef7bef1a12e62e0e7d6145a15190>
- <https://git.kernel.org/stable/c/702ff3fe499876e09c45558a05366d21a5bc41ab>
- <https://git.kernel.org/stable/c/bd2feb7796b6585938a4241e7b7c4148a6f7b762>

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-2026-98991>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98991/>. Everything for agents: <https://agentprime.io/llms.txt>.