CVE-2022-50412

Kernel crash via premature CEC device teardown

Published Sep 18, 2025 · Updated Sep 18, 2025

Denial of service in the Linux kernel ADV7511 bridge driver allows local users to crash the kernel by removing the module. During adv7511_remove(), the driver unregisters the CEC I2C device before cec_unregister_adapter(), leaving adapter operations uncallable when physical-address invalidation invokes them. Triggering the oops requires permission to unload the ADV7511 module and a CEC adapter with a valid physical address; the resulting kernel failure interrupts the host.

CVSS severity7.8
High
EPSS probability0.17%
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 ADV7511 bridge driver allows local users to crash the kernel by removing the module. During adv7511_remove(), the driver unregisters the CEC I2C device before cec_unregister_adapter(), leaving adapter operations uncallable when physical-address invalidation invokes them. Triggering the oops requires permission to unload the ADV7511 module and a CEC adapter with a valid physical address; the resulting kernel failure interrupts the host.

The record

CVE
CVE-2022-50412
Published
Sep 18, 2025
Updated
Sep 18, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
admin

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=3b1b975003e4a3da4b93ab032487a3ae4afca7b5 <3747465c5da7a11957a34bbb9485d9fc253b91cc
  2. Affected versionversion=3b1b975003e4a3da4b93ab032487a3ae4afca7b5 <40cdb02cb9f965732eb543d47f15bef8d10f0f5f
  3. Affected versionversion=3b1b975003e4a3da4b93ab032487a3ae4afca7b5 <4d4d5bc659206b187263190ad9a03513f625659d
  4. Affected versionversion=3b1b975003e4a3da4b93ab032487a3ae4afca7b5 <86ae5170786aea3e1751123ca55700fb9b37b623
  5. Affected versionversion=3b1b975003e4a3da4b93ab032487a3ae4afca7b5 <f369fb4deed7ab997cfa703dc85ec08b3adc1af8
  6. Affected versionversion=4.15

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

The Linux Kernel Organization · Linuxversion=3b1b975003e4a3da4b93ab032487a3ae4afca7b5 <3747465c5da7a11957a34bbb9485d9fc253b91cc; version=3b1b975003e4a3da4b93ab032487a3ae4afca7b5 <40cdb02cb9f965732eb543d47f15bef8d10f0f5f; version=3b1b975003e4a3da4b93ab032487a3ae4afca7b5 <4d4d5bc659206b187263190ad9a03513f625659d; version=3b1b975003e4a3da4b93ab032487a3ae4afca7b5 <86ae5170786aea3e1751123ca55700fb9b37b623; version=3b1b975003e4a3da4b93ab032487a3ae4afca7b5 <f369fb4deed7ab997cfa703dc85ec08b3adc1af8; version=4.15

Published CVSS scores

7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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
Privilegesadmin
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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