CVE-2022-50332

System hang via conflicting framebuffer drivers

Published Sep 15, 2025 · Updated Sep 15, 2025

Denial of service in Linux 6.0.3 through 6.0.5 allows local users to hang the system through conflicting framebuffer drivers. The 6.0 stable backport leaves aperture_remove_conflicting_pci_devices() without a prior sysfb_disable() call, so simpledrm can bind after the hardware driver takes ownership and both drivers access the display hardware. Local low-privileged access is required; observed modesetting paths produce repeated RCU stalls, with no reported confidentiality or integrity impact.

CVSS severity5.5
Medium
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Linux 6.0.3 through 6.0.5 allows local users to hang the system through conflicting framebuffer drivers. The 6.0 stable backport leaves aperture_remove_conflicting_pci_devices() without a prior sysfb_disable() call, so simpledrm can bind after the hardware driver takes ownership and both drivers access the display hardware. Local low-privileged access is required; observed modesetting paths produce repeated RCU stalls, with no reported confidentiality or integrity impact.

The record

CVE
CVE-2022-50332
Published
Sep 15, 2025
Updated
Sep 15, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 15, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 15, 2025Record 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=6.0.3 <6.0.6
  2. Affected versionversion=cfecfc98a78d97a49807531b5b224459bda877de <25a6688f27ff54f97adf7cce1d7e18c38bf51eb4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.0.3 <6.0.6; version=cfecfc98a78d97a49807531b5b224459bda877de <25a6688f27ff54f97adf7cce1d7e18c38bf51eb4

Published CVSS scores

5.5UbuntuCVSS: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

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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