---
id: CVE-2026-92488
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  RDMA/erdma: complete object teardown when the destroy command fails

  erdma_destroy_qp(), erdma_destroy_cq(), erdma_dereg_mr(), and
  erdma_destroy_ah() returned early whe…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  RDMA/erdma: complete object teardown when the destroy command fails

  erdma_destroy_qp(), erdma_destroy_cq(), erdma_dereg_mr(), and
  erdma_destroy_ah() returned early whe…
severity: high
cvss: 7
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 155055771704f8cbb5c176a4309b7dc30a50450c <
    5fcfc988ecf3e2bbe308b95c2c0d2f011d9afabe
  - >-
    Linux >= 155055771704f8cbb5c176a4309b7dc30a50450c <
    ce7d205c264665517c25e8a3231cf2d0c2443e3c
  - >-
    Linux >= 155055771704f8cbb5c176a4309b7dc30a50450c <
    334145d683ad3e31d052247f10807f2ebc950351
  - >-
    Linux >= 155055771704f8cbb5c176a4309b7dc30a50450c <
    652befcba956ef357f480525ccbe25c59bc81d4d
  - Linux 6.0
published: '2026-09-17'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T18:18:12.893'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-92488'
references:
  - url: 'https://git.kernel.org/stable/c/334145d683ad3e31d052247f10807f2ebc950351'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/5fcfc988ecf3e2bbe308b95c2c0d2f011d9afabe'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/652befcba956ef357f480525ccbe25c59bc81d4d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/ce7d205c264665517c25e8a3231cf2d0c2443e3c'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
epss: 0.00155
epssPercentile: 0.039
ingestedAt: '2026-09-17T16:21:47.786Z'
---

## Overview

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

RDMA/erdma: complete object teardown when the destroy command fails

erdma_destroy_qp(), erdma_destroy_cq(), erdma_dereg_mr(), and
erdma_destroy_ah() returned early when erdma_post_cmd_wait() failed,
leaking the queue buffers, MTTs, doorbells and the STAG, QPN, CQN and AHN
identifiers. A command timeout clears ERDMA_CMDQ_STATE_OK_BIT and
permanently disables the command queue, so no retry can succeed; the RDMA
core keeps the object after a failed destructor and forced uverbs cleanup
then nulls the pointers, making the resources unreachable.

Warn on failure but release every software-owned resource and return
success, since during terminal destruction the hardware command result is
only diagnostic.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.