CVE-2022-48928

Service interruption via unreleased device memory mapping

Published Aug 22, 2024 · Updated May 11, 2026

Resource leakage in the men_z188_adc driver in the Linux kernel allows local users to interrupt service through a registration failure. The probe path calls ioremap() before iio_device_register() and returns on registration failure without calling iounmap(), leaving the device-memory mapping allocated. Exploitation requires local low-privileged access, the affected ADC driver and compatible hardware, and a registration failure; repeated failures exhaust mapping resources and interrupt service.

CVSS severity5.5
Medium
EPSS probability0.21%
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 men_z188_adc driver in the Linux kernel allows local users to interrupt service through a registration failure. The probe path calls ioremap() before iio_device_register() and returns on registration failure without calling iounmap(), leaving the device-memory mapping allocated. Exploitation requires local low-privileged access, the affected ADC driver and compatible hardware, and a registration failure; repeated failures exhaust mapping resources and interrupt service.

The record

CVE
CVE-2022-48928
Published
Aug 22, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-401, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 22, 2024CVE 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=3.15
  2. Affected versionversion=74aeac4da66fbfa246edbfc849002eac9b5af9ca <0f88722313645a903f4d420ba61ddc690ec2481d
  3. Affected versionversion=74aeac4da66fbfa246edbfc849002eac9b5af9ca <1aa12ecfdcbafebc218910ec47acf6262e600cf5
  4. Affected versionversion=74aeac4da66fbfa246edbfc849002eac9b5af9ca <53d43a9c8dd224e66559fe86af1e473802c7130e
  5. Affected versionversion=74aeac4da66fbfa246edbfc849002eac9b5af9ca <c5723b422f564af15f2e3bc0592fd6376a0a6c45
  6. Affected versionversion=74aeac4da66fbfa246edbfc849002eac9b5af9ca <ce1076b33e299dc8d270e4450a420a18bfb3e190
  7. Affected versionversion=74aeac4da66fbfa246edbfc849002eac9b5af9ca <d6ed5426a7fad36cf928c244483ba24e72359638
  8. Affected versionversion=74aeac4da66fbfa246edbfc849002eac9b5af9ca <e0a2e37f303828d030a83f33ffe14b36cb88d563
  9. Affected versionversion=74aeac4da66fbfa246edbfc849002eac9b5af9ca <fe73477802981bd0d0d70f2b22f109bcca801bdb

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.15; version=74aeac4da66fbfa246edbfc849002eac9b5af9ca <0f88722313645a903f4d420ba61ddc690ec2481d; version=74aeac4da66fbfa246edbfc849002eac9b5af9ca <1aa12ecfdcbafebc218910ec47acf6262e600cf5; version=74aeac4da66fbfa246edbfc849002eac9b5af9ca <53d43a9c8dd224e66559fe86af1e473802c7130e; version=74aeac4da66fbfa246edbfc849002eac9b5af9ca <c5723b422f564af15f2e3bc0592fd6376a0a6c45; version=74aeac4da66fbfa246edbfc849002eac9b5af9ca <ce1076b33e299dc8d270e4450a420a18bfb3e190; version=74aeac4da66fbfa246edbfc849002eac9b5af9ca <d6ed5426a7fad36cf928c244483ba24e72359638; version=74aeac4da66fbfa246edbfc849002eac9b5af9ca <e0a2e37f303828d030a83f33ffe14b36cb88d563; version=74aeac4da66fbfa246edbfc849002eac9b5af9ca <fe73477802981bd0d0d70f2b22f109bcca801bdb

Published CVSS scores

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

CWE-401Missing Release of Memory after Effective Lifetime
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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