# CVE-2026-89531

## Summary

- **CVE ID:** CVE-2026-89531
- **Severity:** UNKNOWN
- **CVSS Score:** 0
- **CWE:** N/A
- **Published:** Sep 11, 2026
- **Last Modified:** Sep 16, 2026

## Description

In the Linux kernel, the following vulnerability has been resolved:

svcrdma: Reject connection when transport allocation fails

handle_connect_req() returns without action when
svc_rdma_create_xprt() fails to allocate the new transport.
The CM core returns 0 for CONNECT_REQUEST events, so it does
not destroy the new rdma_cm_id. Each allocation failure under
memory pressure leaks one rdma_cm_id, and a remote peer driving
connection attempts can amplify this.

Reject the connection by returning a non-zero status from the
CM event handler, which tells the CM core to destroy the
orphaned cm_id.

## Affected Products

- Linux — Linux (377f9b2f4529e0ac702fd7b91e216afd0adc959e)
- Linux — Linux (2.6.25)
- Linux — Linux (0)
- Linux — Linux (6.12.109)
- Linux — Linux (6.18.50)
- Linux — Linux (7.2.4)
- Linux — Linux (7.3-rc1)

## References

- [CNA](https://git.kernel.org/stable/c/6e21754bbf75075f3fee1cebc79f3417364235ec)
- [CNA](https://git.kernel.org/stable/c/3cf372cec7ab2cd8c6002bf775cc14d90ccb098b)
- [CNA](https://git.kernel.org/stable/c/1f6a14c142fee4778c32709d1d54595c2e2b7991)
- [CNA](https://git.kernel.org/stable/c/0944462247dcb7de7622cdaaadf5f05c52707dab)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.17%
- **EPSS Percentile:** 6.4

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-17._