---
id: CVE-2022-49089
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  IB/rdmavt: add lock to call to rvt_error_qp to prevent a race condition

  The documentation of the function rvt_error_qp says both r_lock and s_lock
  need to be held when…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  IB/rdmavt: add lock to call to rvt_error_qp to prevent a race condition

  The documentation of the function rvt_error_qp says both r_lock and s_lock
  need to be held when…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-362
  - CWE-667
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 5.0.4, < 5.4.189'
  - 'linux_kernel >= 5.5, < 5.10.111'
  - 'linux_kernel >= 5.11, < 5.15.34'
  - 'linux_kernel >= 5.16, < 5.16.20'
  - 'linux_kernel >= 5.17, < 5.17.3'
  - linux_kernel = 5.18
patched:
  - linux_kernel 5.17.3
published: '2025-02-26'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T22:17:22.763'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2022-49089'
references:
  - url: 'https://git.kernel.org/stable/c/43c2d7890ecabe527448a6c391fb2d9a5e6bbfe0'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/4d809f69695d4e7d1378b3a072fa9aef23123018'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/57800cc36e55db0547461c49acf5cd84c0f502b0'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/77ffb2495a41098f9d6a14f8aefde3188da75944'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/8a50937227c385a477177c9ffa122b4230e40666'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/92f1947c0d26060e978b3a9f21f32ce7c8c9cca3'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
epss: 0.00194
epssPercentile: 0.08966
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-15T21:12:54.975146Z'
ingestedAt: '2026-10-15T21:45:11.290Z'
---

## Overview

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

IB/rdmavt: add lock to call to rvt_error_qp to prevent a race condition

The documentation of the function rvt_error_qp says both r_lock and s_lock
need to be held when calling that function.  It also asserts using lockdep
that both of those locks are held.  However, the commit I referenced in
Fixes accidentally makes the call to rvt_error_qp in rvt_ruc_loopback no
longer covered by r_lock.  This results in the lockdep assertion failing
and also possibly in a race condition.

## Affected

- `linux_kernel >= 5.0.4, < 5.4.189`
- `linux_kernel >= 5.5, < 5.10.111`
- `linux_kernel >= 5.11, < 5.15.34`
- `linux_kernel >= 5.16, < 5.16.20`
- `linux_kernel >= 5.17, < 5.17.3`
- `linux_kernel = 5.18`

## Remediation

Upgrade past the affected range:

- `linux_kernel 5.17.3`