# fs: don't silently unmount busy mounts

CVE record · `CVE-2026-98996`

- **Identifiers:** `CVE-2026-98996`
- **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:** 23 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: `99b19d16471e9c3faa85cad38abc9cbbe04c6d55 to before bf2c8dec26fb792876b5e9bde7030c45d8be3908` (git)
  - affected: `99b19d16471e9c3faa85cad38abc9cbbe04c6d55 to before a210ac218c307513d43e98a08f23c2dfbeeebc2f` (git)
  - affected: `99b19d16471e9c3faa85cad38abc9cbbe04c6d55 to before 6857e209015f95be7a8f19a9cd5dac345b9b9859` (git)
  - affected: `dc5ce95b0252d143497283f7f659840d4f8a79d0` (git)
  - affected: `fdb8f10499924d96b8eb60cc1354b278f6fcf0e9` (git)
  - affected: `bb4fbf094b440a9209ed88c8681960d4b26eec0f` (git)
  - affected: `b43f81ef0babcc07db1eaaece37c989204e4ff00` (git)
  - affected: `81311d1698c0c87c972ba71d3ce44a617b52ea21` (git)
  - affected: `4.1.43 to before 4.2` (semver)
  - affected: `4.4.78 to before 4.5` (semver)
  - affected: `4.9.39 to before 4.10` (semver)
  - affected: `4.11.12 to before 4.12` (semver)
  - and 1 more
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.13`
  - unaffected: `before 4.13` (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:** 0.0017, the 5th 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-2026-98996](https://www.cve.org/CVERecord?id=CVE-2026-98996)
- [NVD: CVE-2026-98996](https://nvd.nist.gov/vuln/detail/CVE-2026-98996)

### References from the CNA

- <https://git.kernel.org/stable/c/bf2c8dec26fb792876b5e9bde7030c45d8be3908>
- <https://git.kernel.org/stable/c/a210ac218c307513d43e98a08f23c2dfbeeebc2f>
- <https://git.kernel.org/stable/c/6857e209015f95be7a8f19a9cd5dac345b9b9859>

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-2026-98996>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

---

The web page: <https://agentprime.io/advisories/CVE-2026-98996/>. Everything for agents: <https://agentprime.io/llms.txt>.