CVE-2022-49684

Service interruption via unreleased device-node reference

Published Feb 26, 2025 · Updated May 11, 2026

Resource leakage in the Aspeed ADC driver in Linux 5.16 through 5.18.7 allows local users to interrupt service through retained node references. The aspeed_adc_set_trim_data function calls of_find_node_by_name(), which increments a device-node reference, but omits the required of_node_put() release. Reachability requires the Aspeed ADC driver and a matching device-tree node; public records do not disclose the low-privilege trigger or exact interruption mode.

CVSS severity5.5
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource leakage in the Aspeed ADC driver in Linux 5.16 through 5.18.7 allows local users to interrupt service through retained node references. The aspeed_adc_set_trim_data function calls of_find_node_by_name(), which increments a device-node reference, but omits the required of_node_put() release. Reachability requires the Aspeed ADC driver and a matching device-tree node; public records do not disclose the low-privilege trigger or exact interruption mode.

The record

CVE
CVE-2022-49684
Published
Feb 26, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.002
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

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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=5.16
  2. Affected versionversion=d0a4c17b40736b368f1f26602ad162e24b4108e7 <8a2b6b5687984a010ed094b4f436a2f091987758
  3. Affected versionversion=d0a4c17b40736b368f1f26602ad162e24b4108e7 <9664491db50a84be92696c8fad2c3b49a7a5f36f

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.16; version=d0a4c17b40736b368f1f26602ad162e24b4108e7 <8a2b6b5687984a010ed094b4f436a2f091987758; version=d0a4c17b40736b368f1f26602ad162e24b4108e7 <9664491db50a84be92696c8fad2c3b49a7a5f36f

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

T1499.002Service Exhaustion

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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