CVE-2022-48704

Kernel crash via unflushed lockup workqueue

Published May 3, 2024 · Updated May 11, 2026

Race condition in the Linux kernel Radeon driver allows local users to crash the kernel during Radeon device suspension. The radeon_suspend_kms function can place the PCI device in D3hot before delayed lockup work is fully flushed, causing the worker to access the powered-down GPU. A local low-privileged user must reach the suspend race on a system using the Radeon driver; successful exploitation causes a kernel Oops and service interruption.

CVSS severity5.5
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Race condition in the Linux kernel Radeon driver allows local users to crash the kernel during Radeon device suspension. The radeon_suspend_kms function can place the PCI device in D3hot before delayed lockup work is fully flushed, causing the worker to access the powered-down GPU. A local low-privileged user must reach the suspend race on a system using the Radeon driver; successful exploitation causes a kernel Oops and service interruption.

The record

CVE
CVE-2022-48704
Published
May 3, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 3, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0bfa4b41268ad5fd741f16f484e4fee190822ec6 <16cb367daa446923d82e332537f446a4cc784b40
  2. Affected versionversion=0bfa4b41268ad5fd741f16f484e4fee190822ec6 <4e25e8f27fdbdc6fd55cc572a9939bf24500b9e8
  3. Affected versionversion=0bfa4b41268ad5fd741f16f484e4fee190822ec6 <5a7a5b2edac4b05abd744eeaebda46d9dacd952d
  4. Affected versionversion=0bfa4b41268ad5fd741f16f484e4fee190822ec6 <826b46fd5974113515abe9e4fc8178009a8ce18c
  5. Affected versionversion=0bfa4b41268ad5fd741f16f484e4fee190822ec6 <b878da58df2c40b08914d3960e2224040fd1fbfe
  6. Affected versionversion=0bfa4b41268ad5fd741f16f484e4fee190822ec6 <c0a45f41fde4a0f2c900f719817493ee5c4a5aa3
  7. Affected versionversion=0bfa4b41268ad5fd741f16f484e4fee190822ec6 <c72d97146fc5a4dff381b1737f6167e89860430d
  8. Affected versionversion=0bfa4b41268ad5fd741f16f484e4fee190822ec6 <f461950fdc374a3ada5a63c669d997de4600dffe
  9. Affected versionversion=3.18

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=0bfa4b41268ad5fd741f16f484e4fee190822ec6 <16cb367daa446923d82e332537f446a4cc784b40; version=0bfa4b41268ad5fd741f16f484e4fee190822ec6 <4e25e8f27fdbdc6fd55cc572a9939bf24500b9e8; version=0bfa4b41268ad5fd741f16f484e4fee190822ec6 <5a7a5b2edac4b05abd744eeaebda46d9dacd952d; version=0bfa4b41268ad5fd741f16f484e4fee190822ec6 <826b46fd5974113515abe9e4fc8178009a8ce18c; version=0bfa4b41268ad5fd741f16f484e4fee190822ec6 <b878da58df2c40b08914d3960e2224040fd1fbfe; version=0bfa4b41268ad5fd741f16f484e4fee190822ec6 <c0a45f41fde4a0f2c900f719817493ee5c4a5aa3; version=0bfa4b41268ad5fd741f16f484e4fee190822ec6 <c72d97146fc5a4dff381b1737f6167e89860430d; version=0bfa4b41268ad5fd741f16f484e4fee190822ec6 <f461950fdc374a3ada5a63c669d997de4600dffe; version=3.18

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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