# fs/ntfs3: fix slab-out-of-bounds write in ni_create_attr_list()

CVE record · `CVE-2026-90048`

- **Identifiers:** `CVE-2026-90048`
- **State:** Confirmed
- **Severity:** CVSS 9.8 Critical
- **Critical:** Yes: CVSS 9+
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 16 Sept 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 16 Sept 2026, 10:33 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.

## Critical

Critical, because:

- CVSS score 9.8: 9.0 or more.

How we decide what’s critical: <https://agentprime.io/advisories/critical.md>

## Affected products, as the CNA wrote them

- Vendor: Linux. Product: Linux.
  - affected: `4342306f0f0d5ff4315a204d315c1b51b914fca5 to before 3a38f3c71bcd9bd58d86489c364bd29a4c2c860e` (git)
  - affected: `4342306f0f0d5ff4315a204d315c1b51b914fca5 to before 7e9aee7e4d9767cc3e423b3beecb01c7ebb6bbcd` (git)
  - affected: `4342306f0f0d5ff4315a204d315c1b51b914fca5 to before fa2215cf451414b0512cd6f7d37a057893811f4d` (git)
  - affected: `4342306f0f0d5ff4315a204d315c1b51b914fca5 to before d07e281f2a7710502985d6f80b95ddac8f4e81d5` (git)
  - affected: `4342306f0f0d5ff4315a204d315c1b51b914fca5 to before a84f3db72561c4d9281c5ff721ce46b9ffa7f30e` (git)
  - affected: `4342306f0f0d5ff4315a204d315c1b51b914fca5 to before 7c4841e2a62794a3bab7c1ff0540580f387e377f` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.15`
  - unaffected: `before 5.15` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.157 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.110 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.51 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.5 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0072, the 54th percentile, on 13 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-2026-90048](https://www.cve.org/CVERecord?id=CVE-2026-90048)
- [NVD: CVE-2026-90048](https://nvd.nist.gov/vuln/detail/CVE-2026-90048)

### References from the CNA

- <https://git.kernel.org/stable/c/3a38f3c71bcd9bd58d86489c364bd29a4c2c860e>
- <https://git.kernel.org/stable/c/7e9aee7e4d9767cc3e423b3beecb01c7ebb6bbcd>
- <https://git.kernel.org/stable/c/fa2215cf451414b0512cd6f7d37a057893811f4d>
- <https://git.kernel.org/stable/c/d07e281f2a7710502985d6f80b95ddac8f4e81d5>
- <https://git.kernel.org/stable/c/a84f3db72561c4d9281c5ff721ce46b9ffa7f30e>
- <https://git.kernel.org/stable/c/7c4841e2a62794a3bab7c1ff0540580f387e377f>

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-2026-90048>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-90048/>. Everything for agents: <https://agentprime.io/llms.txt>.