# fs/ntfs3: bound page_lcns\[\] index by the log record

CVE record · `CVE-2026-89615`

- **Identifiers:** `CVE-2026-89615`
- **State:** Confirmed
- **Severity:** CVSS 8.4 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 11 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 11 Sept 2026, 19:45 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 31fdd11f75da9823500168cecb07aa45130915a3` (git)
  - affected: `b46acd6a6a627d876898e1c84d3f84902264b445 to before bb742d1030864c0fe140666f639428ba4e90b2ca` (git)
  - affected: `b46acd6a6a627d876898e1c84d3f84902264b445 to before 61ca8cbbf68f77f25b699ed4358bd232f94ed43b` (git)
  - affected: `b46acd6a6a627d876898e1c84d3f84902264b445 to before f4c1bc6d7331f344ffcea93c2a37badcbe15baa6` (git)
  - affected: `b46acd6a6a627d876898e1c84d3f84902264b445 to before 7ccb94901f38a062034b56b43c774050b113758f` (git)
  - affected: `b46acd6a6a627d876898e1c84d3f84902264b445 to before 1135ebc225996b3ac1a295652b19a0a706737a6c` (git)
  - affected: `b46acd6a6a627d876898e1c84d3f84902264b445 to before 6f7b9dbdc1b7520206abce0049bdd143eb536e75` (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: `6.12.109 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.50 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.4 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:** 0.0015, the 4th 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 11 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-89615](https://www.cve.org/CVERecord?id=CVE-2026-89615)
- [NVD: CVE-2026-89615](https://nvd.nist.gov/vuln/detail/CVE-2026-89615)

### References from the CNA

- <https://git.kernel.org/stable/c/31fdd11f75da9823500168cecb07aa45130915a3>
- <https://git.kernel.org/stable/c/bb742d1030864c0fe140666f639428ba4e90b2ca>
- <https://git.kernel.org/stable/c/61ca8cbbf68f77f25b699ed4358bd232f94ed43b>
- <https://git.kernel.org/stable/c/f4c1bc6d7331f344ffcea93c2a37badcbe15baa6>
- <https://git.kernel.org/stable/c/7ccb94901f38a062034b56b43c774050b113758f>
- <https://git.kernel.org/stable/c/1135ebc225996b3ac1a295652b19a0a706737a6c>
- <https://git.kernel.org/stable/c/6f7b9dbdc1b7520206abce0049bdd143eb536e75>

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-2026-89615>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89615/>. Everything for agents: <https://agentprime.io/llms.txt>.