CVE-2022-50398

Kernel panic via unguarded DisplayPort double disable

Published Sep 18, 2025 · Updated Sep 18, 2025

Denial of service in the Linux kernel 5.17 through 6.0.6 allows local users to trigger a kernel panic through the MSM DisplayPort driver. The bridge lacks an atomic_check guard, so an extra frame sets crtc->active after the display pipeline is down and dp_bridge_disable accesses main-link registers with clocks disabled. A local user-mode display manager must issue the update and close the DRM device in the narrow disabled-interface window, producing a host-wide crash.

CVSS severity5.5
Medium
EPSS probability0.14%
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 the Linux kernel 5.17 through 6.0.6 allows local users to trigger a kernel panic through the MSM DisplayPort driver. The bridge lacks an atomic_check guard, so an extra frame sets crtc->active after the display pipeline is down and dp_bridge_disable accesses main-link registers with clocks disabled. A local user-mode display manager must issue the update and close the DRM device in the narrow disabled-interface window, producing a host-wide crash.

The record

CVE
CVE-2022-50398
Published
Sep 18, 2025
Updated
Sep 18, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 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=5.17
  2. Affected versionversion=8a3b4c17f863cde8e8743edd8faffe916c49b960 <3a661247967a6f3c99a95a8ba4c8073c5846ea4b
  3. Affected versionversion=8a3b4c17f863cde8e8743edd8faffe916c49b960 <d106b866439c63a618d020477bfbe7b46c759657

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.17; version=8a3b4c17f863cde8e8743edd8faffe916c49b960 <3a661247967a6f3c99a95a8ba4c8073c5846ea4b; version=8a3b4c17f863cde8e8743edd8faffe916c49b960 <d106b866439c63a618d020477bfbe7b46c759657

Published CVSS scores

5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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.

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Technologies

Your stack

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Your stack

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