# namespace: reset the old parent's ->overmount in mnt_change_mountpoint()

CVE record · `CVE-2026-98995`

- **Identifiers:** `CVE-2026-98995`
- **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: `ffdc52fbbd5835a936ad683c943d6d103a2d4514 to before 5e0a1f2c753a79749bc2ead3ae2f2ede3941daa5` (git)
  - affected: `ffdc52fbbd5835a936ad683c943d6d103a2d4514 to before 08d575ee89393fd812dbdca7b5d7b4574cd5a564` (git)
  - affected: `ffdc52fbbd5835a936ad683c943d6d103a2d4514 to before 476ef286a7a5db8bda51325dc0c45887b4d99d9a` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.17`
  - unaffected: `before 6.17` (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 5th 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-2026-98995](https://www.cve.org/CVERecord?id=CVE-2026-98995)
- [NVD: CVE-2026-98995](https://nvd.nist.gov/vuln/detail/CVE-2026-98995)

### References from the CNA

- <https://git.kernel.org/stable/c/5e0a1f2c753a79749bc2ead3ae2f2ede3941daa5>
- <https://git.kernel.org/stable/c/08d575ee89393fd812dbdca7b5d7b4574cd5a564>
- <https://git.kernel.org/stable/c/476ef286a7a5db8bda51325dc0c45887b4d99d9a>

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-2026-98995>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98995/>. Everything for agents: <https://agentprime.io/llms.txt>.