---
id: CVE-2026-72494
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  RDMA/irdma: Replace waitqueue and flag with completion

  The driver previously used a waitqueue along with an explicit
  request_done flag, but without proper barriers aro…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  RDMA/irdma: Replace waitqueue and flag with completion

  The driver previously used a waitqueue along with an explicit
  request_done flag, but without proper barriers aro…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 44d9e52977a1b90b0db1c7f8b197c218e9226520 <
    706591cccdd3ac2c0ddc8c2ed6c89a6be9865826
  - >-
    Linux >= 44d9e52977a1b90b0db1c7f8b197c218e9226520 <
    bde37aed0724c0139dea177f3aae8d989b6babb1
  - >-
    Linux >= 44d9e52977a1b90b0db1c7f8b197c218e9226520 <
    d9c8c45e6d2f438a3c8e643ae78b59454fa0fadd
  - Linux 5.14
published: '2026-08-15'
updated: '2026-09-21'
sourceUpdated: '2026-09-21T14:17:17.923'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-72494'
references:
  - url: 'https://git.kernel.org/stable/c/706591cccdd3ac2c0ddc8c2ed6c89a6be9865826'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/bde37aed0724c0139dea177f3aae8d989b6babb1'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d9c8c45e6d2f438a3c8e643ae78b59454fa0fadd'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
epss: 0.00649
epssPercentile: 0.48958
ingestedAt: '2026-09-21T13:37:22.841Z'
---

## Overview

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

RDMA/irdma: Replace waitqueue and flag with completion

The driver previously used a waitqueue along with an explicit
request_done flag, but without proper barriers around request_done.

An earlier patch by Gui-Dong Han <hanguidong02@gmail.com> attempted
to fix this by adding the missing memory barriers. Rather than
adding the barriers, this patch replaces the waitqueue+flag with
a completion, which is designed for this exact purpose.

## Remediation

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