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NVD / CVE Program· CNA Linux

CVE-2024-42224: net: dsa: mv88e6xxx: Correct check for empty list

Noroxi assessment

Priority: Monitor (action score 24/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.23% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 2a2fe25a103cef73cde356e6d09da10f607e93f5, 3bf8d70e1455f87856640c3433b3660a31001618, 3f25b5f1635449036692a44b771f39f772190c1d; azl3 kernel 6.6.35.1-5 on Azure Linux 3.0 6.6.43.1-7; azl3 kernel 6.6.43.1-7 on Azure Linux 3.0 6.6.43.1-7.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 2a2fe25a103cef73cde356e6d09da10f607e93f5, 3bf8d70e1455f87856640c3433b3660a31001618, 3f25b5f1635449036692a44b771f39f772190c1d; azl3 kernel 6.6.35.1-5 on Azure Linux 3.0 6.6.43.1-7; azl3 kernel 6.6.43.1-7 on Azure Linux 3.0 6.6.43.1-7 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: net: dsa: mv88e6xxx: Correct check for empty list Since commit a3c53be55c95 ("net: dsa: mv88e6xxx: Support multiple MDIO busses") mv88e6xxx_default_mdio_bus() has checked that the return value of list_first_entry() is non-NULL. This appears to be intended to guard against the list chip->mdios being empty. However, it is not the correct check as the implementation of list_first_entry is not designed to return NULL for empty lists. Instead, use list_first_entry_or_null() which does return NULL if the list is empty. Flagged by Smatch. Compile tested only.

MediumCVSS 6.1 · v3.1—No exploit Fix available
Published
Jul 30, 2024
Updated
Aug 5, 2026
EPSS
0.2% · 14th percentile

Report tools

JSON

Action score

24

Monitor

Low priority for now.

CVSS
24 / 40 · 6.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
6.1
CNA · Linux
7.0
0.9 point gap

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2024-42224

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel4.11 and later · before 4.19.318
  • linux linux kernel4.20 and later · before 5.4.280
  • linux linux kernel5.5 and later · before 5.10.222
  • linux linux kernel5.11 and later · before 5.15.163
  • linux linux kernel5.16 and later · before 6.1.98
  • linux linux kernel6.2 and later · before 6.6.39
  • linux linux kernel6.7 and later · before 6.9.9

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 4.11affected
    • a3c53be55c955b7150cda17874c3fcb4eeb97a89 and later · before 47d28dde172696031c880c5778633cdca30394eeaffected · git
    • a3c53be55c955b7150cda17874c3fcb4eeb97a89 and later · before 3bf8d70e1455f87856640c3433b3660a31001618affected · git
    • a3c53be55c955b7150cda17874c3fcb4eeb97a89 and later · before 2a2fe25a103cef73cde356e6d09da10f607e93f5affected · git
    • a3c53be55c955b7150cda17874c3fcb4eeb97a89 and later · before 8c2c3cca816d074c75a2801d1ca0dea7b0148114affected · git
    • a3c53be55c955b7150cda17874c3fcb4eeb97a89 and later · before aa03f591ef31ba603a4a99d05d25a0f21ab1cd89affected · git
    • a3c53be55c955b7150cda17874c3fcb4eeb97a89 and later · before 3f25b5f1635449036692a44b771f39f772190c1daffected · git
    • a3c53be55c955b7150cda17874c3fcb4eeb97a89 and later · before f75625db838ade28f032dacd0f0c8baca42ecde4affected · git
    • a3c53be55c955b7150cda17874c3fcb4eeb97a89 and later · before 4c7f3950a9fd53a62b156c0fe7c3a2c43b0ba19baffected · git
    • before 4.11not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.98-16.1.98-1
Debian:13linuxbefore 6.9.9-16.9.9-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2024-42161Jul 30, 2024 · bpf: Avoid uninitialized value in BPF_CORE_READ_BITFIELD
    25Monitor
  • ← EarlierCVE-2024-42223Jul 30, 2024 · media: dvb-frontends: tda10048: Fix integer overflow
    22Monitor
  • Later →CVE-2024-42225Jul 30, 2024 · wifi: mt76: replace skb_put with skb_put_zero
    30Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux2a2fe25a103cef73cde356e6d09da10f607e93f5Vendor (CNA)
Linux Linux3bf8d70e1455f87856640c3433b3660a31001618Vendor (CNA)
Linux Linux3f25b5f1635449036692a44b771f39f772190c1dVendor (CNA)
Linux Linux47d28dde172696031c880c5778633cdca30394eeVendor (CNA)
Linux Linux4c7f3950a9fd53a62b156c0fe7c3a2c43b0ba19bVendor (CNA)
Linux Linux8c2c3cca816d074c75a2801d1ca0dea7b0148114Vendor (CNA)
Linux Linuxaa03f591ef31ba603a4a99d05d25a0f21ab1cd89Vendor (CNA)
Linux Linuxf75625db838ade28f032dacd0f0c8baca42ecde4Vendor (CNA)
azl3 kernel 6.6.35.1-5 on Azure Linux 3.06.6.43.1-7 · CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 kernel 6.6.43.1-7 on Azure Linux 3.06.6.43.1-7 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 kernel 5.15.162.2-1 on CBL Mariner 2.05.15.164.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 kernel 5.15.162.2-1 on CBL-Mariner 2.05.15.163.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 kernel 5.15.163.1-1 on CBL Mariner 2.05.15.163.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.98-1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2025-39682402 days aparttls: fix handling of zero-length records on the rx_listKEV
    70This week
  • CVE-2024-421590 days apartscsi: mpi3mr: Sanitise num_phys
    31Monitor
  • CVE-2024-421600 days apartf2fs: check validation of fault attrs in f2fs_build_fault_attr()
    31Monitor
  • CVE-2024-4228418 days aparttipc: Return non-zero value from tipc_udp_addr2str() on error
    31Monitor
  • CVE-2024-4772783 days apartx86/tdx: Fix "in-kernel MMIO" check
    31Monitor
  • CVE-2021-47014153 days apartnet/sched: act_ct: fix wild memory access when clearing fragments
    31Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
low · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
Low
Availability impact
High

Weakness class (CWE)

CWE-754 · Improper Check for Unusual or Exceptional Conditions

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (8 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records