# mm/list_lru: drain before clearing xarray entry on reparent

CVE record · `CVE-2026-53153`

- **Identifiers:** `CVE-2026-53153`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Weakness (CWE):** [CWE-820](https://cwe.mitre.org/data/definitions/820.html)
- **Tags:** [CWE-820](https://agentprime.io/advisories/tag/cwe-820.md)
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 25 Jun 2026
- **Updated:** 2 Sept 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 25 Jun 2026, 08:38 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: `fb56fdf8b9a2f7397f8a83dce50189f3f0cf71af to before c19ff4351214f059349788e13e70e74325831ff6` (git)
  - affected: `fb56fdf8b9a2f7397f8a83dce50189f3f0cf71af to before 2b66496d794e98f7aeec7688573051f22ec40bac` (git)
  - affected: `fb56fdf8b9a2f7397f8a83dce50189f3f0cf71af to before 98733f3f0becb1ae0701d021c1748e974e5fa55c` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.13`
  - unaffected: `before 6.13` (semver)
  - unaffected: `6.18.36 to 6.18.*, inclusive` (semver)
  - unaffected: `7.0.13 to 7.0.*, inclusive` (semver)
  - unaffected: `7.1 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

- 7.8 High, CVSS 3.1: `CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`, from CNA (Linux) (used for this record)
- 7.0 High, CVSS 3.1: `CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H`, from ADP (redhat-SADP)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0010, the 1st percentile, on 5 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 25 Jun 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-53153](https://www.cve.org/CVERecord?id=CVE-2026-53153)
- [NVD: CVE-2026-53153](https://nvd.nist.gov/vuln/detail/CVE-2026-53153)

### References from the CNA

- <https://git.kernel.org/stable/c/c19ff4351214f059349788e13e70e74325831ff6>
- <https://git.kernel.org/stable/c/2b66496d794e98f7aeec7688573051f22ec40bac>
- <https://git.kernel.org/stable/c/98733f3f0becb1ae0701d021c1748e974e5fa55c>

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-2026-53153>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

---

The web page: <https://agentprime.io/advisories/CVE-2026-53153/>. Everything for agents: <https://agentprime.io/llms.txt>.