# bpf: Fix wrong reg type conversion in release_reference()

CVE record · `CVE-2022-49873`

- **Identifiers:** `CVE-2022-49873`
- **State:** Confirmed
- **Severity:** CVSS 5.5 Medium
- **Critical:** No
- **CNA:** Linux
- **Weakness (CWE):** [CWE-704](https://cwe.mitre.org/data/definitions/704.html)
- **Tags:** [CWE-704](https://agentprime.io/advisories/tag/cwe-704.md)
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 1 May 2025
- **Updated:** 11 May 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 1 May 2025, 14:10 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: `fd978bf7fd312581a7ca454a991f0ffb34c4204b to before cedd4f01f67be94735f15123158f485028571037` (git)
  - affected: `fd978bf7fd312581a7ca454a991f0ffb34c4204b to before 466ce46f251dfb259a8cbaa895ab9edd6fb56240` (git)
  - affected: `fd978bf7fd312581a7ca454a991f0ffb34c4204b to before ae5ccad6c711db0f2ca1231be051935dd128b8f5` (git)
  - affected: `fd978bf7fd312581a7ca454a991f0ffb34c4204b to before f1db20814af532f85e091231223e5e4818e8464b` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.20`
  - unaffected: `before 4.20` (semver)
  - unaffected: `5.10.155 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.79 to 5.15.*, inclusive` (semver)
  - unaffected: `6.0.9 to 6.0.*, inclusive` (semver)
  - unaffected: `6.1 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

- 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:** 0.0022, the 12th 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 1 May 2025. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2022-49873](https://www.cve.org/CVERecord?id=CVE-2022-49873)
- [NVD: CVE-2022-49873](https://nvd.nist.gov/vuln/detail/CVE-2022-49873)

### References from the CNA

- <https://git.kernel.org/stable/c/cedd4f01f67be94735f15123158f485028571037>
- <https://git.kernel.org/stable/c/466ce46f251dfb259a8cbaa895ab9edd6fb56240>
- <https://git.kernel.org/stable/c/ae5ccad6c711db0f2ca1231be051935dd128b8f5>
- <https://git.kernel.org/stable/c/f1db20814af532f85e091231223e5e4818e8464b>

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-2022-49873>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2022-49873/>. Everything for agents: <https://agentprime.io/llms.txt>.