# fs/ntfs3: reject restart table growth beyond U16_MAX entries

CVE record · `CVE-2026-89782`

- **Identifiers:** `CVE-2026-89782`
- **State:** Confirmed
- **Severity:** CVSS 8.4 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 16 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 16 Sept 2026, 08:48 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: `b46acd6a6a627d876898e1c84d3f84902264b445 to before caa0ec3fc44a13d7c21d78e4722f4f05f87ccf56` (git)
  - affected: `b46acd6a6a627d876898e1c84d3f84902264b445 to before 339e59996ff193adcf1c438cf05f19e753beb3a7` (git)
  - affected: `b46acd6a6a627d876898e1c84d3f84902264b445 to before ecde45cd81dc28f5696c312c5ce5a509962e9ab1` (git)
  - affected: `b46acd6a6a627d876898e1c84d3f84902264b445 to before be218a01aadffe33ed4fc73e25276d676ebbd09d` (git)
  - affected: `b46acd6a6a627d876898e1c84d3f84902264b445 to before aad605a450611e2a7b7cf9dd5724004d39192bfb` (git)
  - affected: `b46acd6a6a627d876898e1c84d3f84902264b445 to before 967a5ff8a614d10126b6d46db1ac040948d6cb42` (git)
  - affected: `b46acd6a6a627d876898e1c84d3f84902264b445 to before 111f8d74a19d85942ecbb3aba78f6f3c88e59391` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.15`
  - unaffected: `before 5.15` (semver)
  - unaffected: `5.15.221 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.188 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.157 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.110 to 6.12.*, inclusive` (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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0018, the 7th percentile, on 14 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 16 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-89782](https://www.cve.org/CVERecord?id=CVE-2026-89782)
- [NVD: CVE-2026-89782](https://nvd.nist.gov/vuln/detail/CVE-2026-89782)

### References from the CNA

- <https://git.kernel.org/stable/c/caa0ec3fc44a13d7c21d78e4722f4f05f87ccf56>
- <https://git.kernel.org/stable/c/339e59996ff193adcf1c438cf05f19e753beb3a7>
- <https://git.kernel.org/stable/c/ecde45cd81dc28f5696c312c5ce5a509962e9ab1>
- <https://git.kernel.org/stable/c/be218a01aadffe33ed4fc73e25276d676ebbd09d>
- <https://git.kernel.org/stable/c/aad605a450611e2a7b7cf9dd5724004d39192bfb>
- <https://git.kernel.org/stable/c/967a5ff8a614d10126b6d46db1ac040948d6cb42>
- <https://git.kernel.org/stable/c/111f8d74a19d85942ecbb3aba78f6f3c88e59391>

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-2026-89782>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89782/>. Everything for agents: <https://agentprime.io/llms.txt>.