CVE-2024-42224

System crash via empty MDIO-bus list

Published Jul 30, 2024 · Updated Aug 5, 2026

Improper exceptional-condition handling in affected Linux kernel releases allows local users to crash the system through an empty MDIO-bus list. mv88e6xxx_default_mdio_bus uses list_first_entry and then tests its result for NULL, although that helper does not return NULL for an empty chip->mdios list. The published record does not document how a local user reaches the empty-list state, and the fix was compile-tested only.

CVSS severity6.1
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper exceptional-condition handling in affected Linux kernel releases allows local users to crash the system through an empty MDIO-bus list. mv88e6xxx_default_mdio_bus uses list_first_entry and then tests its result for NULL, although that helper does not return NULL for an empty chip->mdios list. The published record does not document how a local user reaches the empty-list state, and the fix was compile-tested only.

The record

CVE
CVE-2024-42224
Published
Jul 30, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-754, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 30, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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=4.11
  2. Affected versionversion=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <2a2fe25a103cef73cde356e6d09da10f607e93f5
  3. Affected versionversion=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <3bf8d70e1455f87856640c3433b3660a31001618
  4. Affected versionversion=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <3f25b5f1635449036692a44b771f39f772190c1d
  5. Affected versionversion=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <47d28dde172696031c880c5778633cdca30394ee
  6. Affected versionversion=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <4c7f3950a9fd53a62b156c0fe7c3a2c43b0ba19b
  7. Affected versionversion=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <8c2c3cca816d074c75a2801d1ca0dea7b0148114
  8. Affected versionversion=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <aa03f591ef31ba603a4a99d05d25a0f21ab1cd89
  9. Affected versionversion=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <f75625db838ade28f032dacd0f0c8baca42ecde4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.11; version=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <2a2fe25a103cef73cde356e6d09da10f607e93f5; version=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <3bf8d70e1455f87856640c3433b3660a31001618; version=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <3f25b5f1635449036692a44b771f39f772190c1d; version=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <47d28dde172696031c880c5778633cdca30394ee; version=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <4c7f3950a9fd53a62b156c0fe7c3a2c43b0ba19b; version=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <8c2c3cca816d074c75a2801d1ca0dea7b0148114; version=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <aa03f591ef31ba603a4a99d05d25a0f21ab1cd89; version=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <f75625db838ade28f032dacd0f0c8baca42ecde4

Published CVSS scores

5.5Amazon LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.1Oracle LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
6.1CanonicalCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/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 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-754Improper Check for Unusual or Exceptional Conditions
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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