# NFSv4: Don't hold the layoutget locks across multiple RPC calls

CVE record · `CVE-2022-49316`

- **Identifiers:** `CVE-2022-49316`
- **State:** Confirmed
- **Severity:** CVSS 5.5 Medium
- **Critical:** No
- **CNA:** Linux
- **Weakness (CWE):** [CWE-667](https://cwe.mitre.org/data/definitions/667.html)
- **Tags:** [CWE-667](https://agentprime.io/advisories/tag/cwe-667.md)
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 26 Feb 2025
- **Updated:** 11 May 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 26 Feb 2025, 02:10 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: `56f487f8c8fc5d6e582b79a86fc132d050129e15 to before 6b3fc1496e7227cd6a39a80bbfb7588ef7c7a010` (git)
  - affected: `56f487f8c8fc5d6e582b79a86fc132d050129e15 to before a2b3be930e79cc5d9d829f158e31172b2043f0cd` (git)
  - affected: `56f487f8c8fc5d6e582b79a86fc132d050129e15 to before 0ee5b9644f06b4d3cdcd9544f43f63312e425a4c` (git)
  - affected: `56f487f8c8fc5d6e582b79a86fc132d050129e15 to before d4c2a041ed3ba114502d5ed6ace5b1a48d637a8e` (git)
  - affected: `56f487f8c8fc5d6e582b79a86fc132d050129e15 to before 08d7a26d115cc7892668baa9750f64bd8baca29b` (git)
  - affected: `56f487f8c8fc5d6e582b79a86fc132d050129e15 to before ea759ae0a9ae5acee677d722129710ac89cc59c1` (git)
  - affected: `56f487f8c8fc5d6e582b79a86fc132d050129e15 to before 6949493884fe88500de4af182588e071cf1544ee` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.18`
  - unaffected: `before 4.18` (semver)
  - unaffected: `4.19.247 to 4.19.*, inclusive` (semver)
  - unaffected: `5.4.198 to 5.4.*, inclusive` (semver)
  - unaffected: `5.10.122 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.47 to 5.15.*, inclusive` (semver)
  - unaffected: `5.17.15 to 5.17.*, inclusive` (semver)
  - unaffected: `5.18.4 to 5.18.*, inclusive` (semver)
  - unaffected: `5.19 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

- 5.5 Medium, CVSS 3.1: `CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`, from ADP (CISA-ADP)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0021, the 11th 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 26 Feb 2025. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2022-49316](https://www.cve.org/CVERecord?id=CVE-2022-49316)
- [NVD: CVE-2022-49316](https://nvd.nist.gov/vuln/detail/CVE-2022-49316)

### References from the CNA

- <https://git.kernel.org/stable/c/6b3fc1496e7227cd6a39a80bbfb7588ef7c7a010>
- <https://git.kernel.org/stable/c/a2b3be930e79cc5d9d829f158e31172b2043f0cd>
- <https://git.kernel.org/stable/c/0ee5b9644f06b4d3cdcd9544f43f63312e425a4c>
- <https://git.kernel.org/stable/c/d4c2a041ed3ba114502d5ed6ace5b1a48d637a8e>
- <https://git.kernel.org/stable/c/08d7a26d115cc7892668baa9750f64bd8baca29b>
- <https://git.kernel.org/stable/c/ea759ae0a9ae5acee677d722129710ac89cc59c1>
- <https://git.kernel.org/stable/c/6949493884fe88500de4af182588e071cf1544ee>

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-2022-49316>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2022-49316/>. Everything for agents: <https://agentprime.io/llms.txt>.