# md: scope memalloc_noio to allocation critical sections

CVE record · `CVE-2026-90389`

- **Identifiers:** `CVE-2026-90389`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 17 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 17 Sept 2026, 16:09 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: `78f57ef9d50a75326da73d352d7c27828495229a to before 72ebfdf507ede7d7f2b7ca0a5634811a0e4bf045` (git)
  - affected: `78f57ef9d50a75326da73d352d7c27828495229a to before 28fdea874f68cac6c36651b1fc7272fd2199c48d` (git)
  - affected: `78f57ef9d50a75326da73d352d7c27828495229a to before a58923756b0f8e71032070c23ae0b167e46731da` (git)
  - affected: `78f57ef9d50a75326da73d352d7c27828495229a to before bace2010dd7ac07bc980575afb135c406730a7fe` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.8`
  - unaffected: `before 5.8` (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

No source has published a CVSS score for this record yet.

- **CISA KEV:** Not listed.
- **EPSS:** 0.0020, the 9th 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 17 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-90389](https://www.cve.org/CVERecord?id=CVE-2026-90389)
- [NVD: CVE-2026-90389](https://nvd.nist.gov/vuln/detail/CVE-2026-90389)

### References from the CNA

- <https://git.kernel.org/stable/c/72ebfdf507ede7d7f2b7ca0a5634811a0e4bf045>
- <https://git.kernel.org/stable/c/28fdea874f68cac6c36651b1fc7272fd2199c48d>
- <https://git.kernel.org/stable/c/a58923756b0f8e71032070c23ae0b167e46731da>
- <https://git.kernel.org/stable/c/bace2010dd7ac07bc980575afb135c406730a7fe>

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-2026-90389>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-90389/>. Everything for agents: <https://agentprime.io/llms.txt>.