CVE-2022-49724

Kernel warning via mismatched IRQ device identifier

Published Feb 26, 2025 · Updated May 11, 2026

Improper IRQ cleanup in the Linux goldfish TTY driver from 4.6 allows local users to trigger a kernel warning by unbinding the driver. The goldfish_tty_remove function passes the platform device to free_irq even though request_irq registered the goldfish_tty context as dev_id. Reachability requires local privileges sufficient to unbind the platform driver; the published trace demonstrates a warning, not a crash.

CVSS severity7.8
High
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper IRQ cleanup in the Linux goldfish TTY driver from 4.6 allows local users to trigger a kernel warning by unbinding the driver. The goldfish_tty_remove function passes the platform device to free_irq even though request_irq registered the goldfish_tty context as dev_id. Reachability requires local privileges sufficient to unbind the platform driver; the published trace demonstrates a warning, not a crash.

The record

CVE
CVE-2022-49724
Published
Feb 26, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-416
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 26, 2025CVE 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=4.6
  2. Affected versionversion=465893e18878e119d8d0255439fad8debbd646fd <499e13aac6c762e1e828172b0f0f5275651d6512
  3. Affected versionversion=465893e18878e119d8d0255439fad8debbd646fd <65ca4db68b6819244df9024aea4be55edf8af1ef
  4. Affected versionversion=465893e18878e119d8d0255439fad8debbd646fd <a6fcd7ffd76a9c1d998a2d02d518c78a55c5bed8
  5. Affected versionversion=465893e18878e119d8d0255439fad8debbd646fd <c4b0b8edccb0cfb15a8cecf4161e0571d3daac64
  6. Affected versionversion=465893e18878e119d8d0255439fad8debbd646fd <c83a1d40dc624070a203eb383ef9fb60eb634136
  7. Affected versionversion=465893e18878e119d8d0255439fad8debbd646fd <f7183c76d500324b8b5bd0af5e663cfa57b7b836
  8. Affected versionversion=465893e18878e119d8d0255439fad8debbd646fd <fb15e79cacddfbc62264e6e807bde50ad688e988

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.6; version=465893e18878e119d8d0255439fad8debbd646fd <499e13aac6c762e1e828172b0f0f5275651d6512; version=465893e18878e119d8d0255439fad8debbd646fd <65ca4db68b6819244df9024aea4be55edf8af1ef; version=465893e18878e119d8d0255439fad8debbd646fd <a6fcd7ffd76a9c1d998a2d02d518c78a55c5bed8; version=465893e18878e119d8d0255439fad8debbd646fd <c4b0b8edccb0cfb15a8cecf4161e0571d3daac64; version=465893e18878e119d8d0255439fad8debbd646fd <c83a1d40dc624070a203eb383ef9fb60eb634136; version=465893e18878e119d8d0255439fad8debbd646fd <f7183c76d500324b8b5bd0af5e663cfa57b7b836; version=465893e18878e119d8d0255439fad8debbd646fd <fb15e79cacddfbc62264e6e807bde50ad688e988

Published CVSS scores

7.8NIST National Vulnerability DatabaseCVSS: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 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

CWE-416Use After Free

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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