# bpf: Preserve id of register in sync_linked_regs()

CVE record · `CVE-2026-45933`

- **Identifiers:** `CVE-2026-45933`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Weakness (CWE):** [CWE-682](https://cwe.mitre.org/data/definitions/682.html)
- **Tags:** [CWE-682](https://agentprime.io/advisories/tag/cwe-682.md)
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 27 May 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 27 May 2026, 12:17 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: `98d7ca374ba4b39e7535613d40e159f09ca14da2 to before 58059335e46537de682db84984f7716c813208c4` (git)
  - affected: `98d7ca374ba4b39e7535613d40e159f09ca14da2 to before 92a8cb1806adefb263cf096eab6705705cf7eee1` (git)
  - affected: `98d7ca374ba4b39e7535613d40e159f09ca14da2 to before 65d114b5270b62aefb820ecd6c3b7caeea8f895d` (git)
  - affected: `98d7ca374ba4b39e7535613d40e159f09ca14da2 to before af9e89d8dd39530c8bd14c33ddf6b502df1071b6` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.11`
  - unaffected: `before 6.11` (semver)
  - unaffected: `6.12.75 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.14 to 6.18.*, inclusive` (semver)
  - unaffected: `6.19.4 to 6.19.*, inclusive` (semver)
  - unaffected: `7.0 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)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0020, the 9th 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 27 May 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-45933](https://www.cve.org/CVERecord?id=CVE-2026-45933)
- [NVD: CVE-2026-45933](https://nvd.nist.gov/vuln/detail/CVE-2026-45933)

### References from the CNA

- <https://git.kernel.org/stable/c/58059335e46537de682db84984f7716c813208c4>
- <https://git.kernel.org/stable/c/92a8cb1806adefb263cf096eab6705705cf7eee1>
- <https://git.kernel.org/stable/c/65d114b5270b62aefb820ecd6c3b7caeea8f895d>
- <https://git.kernel.org/stable/c/af9e89d8dd39530c8bd14c33ddf6b502df1071b6>

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-2026-45933>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-45933/>. Everything for agents: <https://agentprime.io/llms.txt>.