# svcrdma: Clear sc_cm_id when ADDR_CHANGE replacement fails

CVE record · `CVE-2026-89534`

- **Identifiers:** `CVE-2026-89534`
- **State:** Confirmed
- **Severity:** CVSS 8.8 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 11 Sept 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 11 Sept 2026, 19:44 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: `d1b586e75ec619dde1af47e21a41a6b1b51874c2 to before 2a68aeb2de8ad0fef9c50e73a50622a35c6af1a8` (git)
  - affected: `d1b586e75ec619dde1af47e21a41a6b1b51874c2 to before 65f0f82f20334e76acaf29087a59af7b3b9699ed` (git)
  - affected: `d1b586e75ec619dde1af47e21a41a6b1b51874c2 to before 673e358ab7c11f8cec223c6a36a793056a67facd` (git)
  - affected: `d1b586e75ec619dde1af47e21a41a6b1b51874c2 to before 01500306e1d50de7ca7a2cdcdfa28ac0523eb747` (git)
  - affected: `2f84d6e8b0a7093758d8da19cec111140e7b6d41` (git)
  - affected: `5cd069ad1cf7fb46af31f0dbe2850868335f5272` (git)
  - affected: `6.1.191 to before 6.2` (semver)
  - affected: `6.6.160 to before 6.7` (semver)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.11`
  - unaffected: `before 6.11` (semver)
  - unaffected: `6.12.114 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.57 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.4 to 7.2.*, inclusive` (semver)
  - unaffected: `7.3 to *, inclusive` (original_commit_for_fix)
  - Other versions: affected

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> The Linux kernel svcrdma component is affected from version 6.11, with fixes in 6.12.114, 6.18.57, 7.2.4 and 7.3. A failed listener replacement during an address change leaves a stale pointer, which can cause a use-after-free when the listener is torn down. The source gives few details on what an attacker needs, so upgrade to the fixed release for your branch.

Written 12 Nov 2026.

## 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

- 8.8 High, CVSS 3.1: `CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`, from CNA (Linux)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0028, the 21st percentile, on 14 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 11 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-89534](https://www.cve.org/CVERecord?id=CVE-2026-89534)
- [NVD: CVE-2026-89534](https://nvd.nist.gov/vuln/detail/CVE-2026-89534)

### References from the CNA

- <https://git.kernel.org/stable/c/2a68aeb2de8ad0fef9c50e73a50622a35c6af1a8>
- <https://git.kernel.org/stable/c/65f0f82f20334e76acaf29087a59af7b3b9699ed>
- <https://git.kernel.org/stable/c/673e358ab7c11f8cec223c6a36a793056a67facd>
- <https://git.kernel.org/stable/c/01500306e1d50de7ca7a2cdcdfa28ac0523eb747>

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-2026-89534>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89534/>. Everything for agents: <https://agentprime.io/llms.txt>.