# net/rds: reset op_nents when zerocopy page pin fails

CVE record · `CVE-2026-43494`

- **Identifiers:** `CVE-2026-43494`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Weakness (CWE):** [CWE-415](https://cwe.mitre.org/data/definitions/415.html) · [CWE-1341](https://cwe.mitre.org/data/definitions/1341.html)
- **Tags:** [Memory corruption](https://agentprime.io/advisories/tag/memory-corruption.md) · [CWE-1341](https://agentprime.io/advisories/tag/cwe-1341.md)
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 21 May 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 21 May 2026, 10:49 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: `0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3 to before c6e51512a784c4a7b86e1a044988696e3b3721fa` (git)
  - affected: `0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3 to before 03014551938a0887fa55f18ce49b70158a9c0113` (git)
  - affected: `0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3 to before d84ce1786ce40fdd3dd98db47aec5527817e1ef6` (git)
  - affected: `0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3 to before 9115669faedccdda100428e2d26fd0aac8c50799` (git)
  - affected: `0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3 to before 0bbbff00a15b1df2cac9014d6cf4b6890f473353` (git)
  - affected: `0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3 to before 640e37f58f991546a87540d067279c2c1fa9fe51` (git)
  - affected: `0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3 to before 290e833d1acb1093bc121fcdc97f5e6161157479` (git)
  - affected: `0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3 to before e174929793195e0cd6a4adb0cad731b39f9019b4` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.17`
  - unaffected: `before 4.17` (semver)
  - unaffected: `5.10.258 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.209 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.175 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.141 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.91 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.33 to 6.18.*, inclusive` (semver)
  - unaffected: `7.0.10 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:** 0.0041, the 35th percentile, on 6 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 21 May 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-43494](https://www.cve.org/CVERecord?id=CVE-2026-43494)
- [NVD: CVE-2026-43494](https://nvd.nist.gov/vuln/detail/CVE-2026-43494)

### References from the CNA

- <https://git.kernel.org/stable/c/c6e51512a784c4a7b86e1a044988696e3b3721fa>
- <https://git.kernel.org/stable/c/03014551938a0887fa55f18ce49b70158a9c0113>
- <https://git.kernel.org/stable/c/d84ce1786ce40fdd3dd98db47aec5527817e1ef6>
- <https://git.kernel.org/stable/c/9115669faedccdda100428e2d26fd0aac8c50799>
- <https://git.kernel.org/stable/c/0bbbff00a15b1df2cac9014d6cf4b6890f473353>
- <https://git.kernel.org/stable/c/640e37f58f991546a87540d067279c2c1fa9fe51>
- <https://git.kernel.org/stable/c/290e833d1acb1093bc121fcdc97f5e6161157479>
- <https://git.kernel.org/stable/c/e174929793195e0cd6a4adb0cad731b39f9019b4>
- <https://github.com/v12-security/pocs/tree/main/pintheft>

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-2026-43494>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-43494/>. Everything for agents: <https://agentprime.io/llms.txt>.