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CVE Record

CVE-2024-27432: net: ethernet: mtk_eth_soc: fix PPE hanging issue

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: mtk_eth_soc: fix PPE hanging issue A patch to resolve an issue was found in MediaTek's GPL-licensed SDK: In the mtk_ppe_stop() function, the PPE scan mode is not disabled before disabling the PPE. This can potentially lead to a hang during the process of disabling the PPE. Without this patch, the PPE may experience a hang during the reboot test.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This Linux kernel issue affects MediaTek Ethernet packet-processing hardware support. The kernel may leave PPE scan mode enabled while stopping the PPE, which can cause a hang during shutdown or reboot testing. The sources do not show remote compromise, data theft, privilege escalation, or active exploitation.

Executive priority

Treat this as an operational reliability issue unless your estate relies heavily on MediaTek-based Linux networking devices. Patch through normal kernel or firmware maintenance, with higher priority for devices where reboot reliability matters.

Technical view

CVE-2024-27432 is in the Linux mtk_eth_soc Ethernet driver. mtk_ppe_stop() did not disable PPE scan mode before disabling PPE, creating a potential hang while stopping PPE. Kernel stable commits address the stop sequence. Public data lists severity and CVSS as unavailable.

Likely exposure

Likely exposure is Linux systems or products using MediaTek mtk_eth_soc Ethernet/PPE support on affected kernel lines. The bundle lists Linux as affected and references fixed stable commits, but does not identify specific distributions, appliances, or firmware products.

Exploitation context

CISA KEV status is false in the supplied bundle. The cited description frames the issue as a reboot-test hang, not an actively exploited vulnerability. No public exploit status is provided in the sources.

Researcher notes

Evidence is limited to the CVE text and Linux stable commit references. The root cause is stop-order handling in mtk_ppe_stop(). No CVSS, CWE, proof of exploitation, or affected downstream product list is included in the supplied sources.

Mitigation direction

  • Update to a Linux stable kernel containing the referenced fixes.
  • For appliances, request vendor firmware guidance for CVE-2024-27432.
  • Prioritize MediaTek Ethernet platforms that show reboot or shutdown hangs.
  • Monitor Linux and vendor advisories for backported fixes or workarounds.

Validation and detection

  • Inventory systems using Linux MediaTek mtk_eth_soc Ethernet support.
  • Compare deployed kernel versions or commits against the referenced stable fixes.
  • Review reboot and shutdown logs for PPE-related hangs.
  • Confirm vendor firmware includes a fixed kernel or backport.
Prepared
Confidence
medium
Sources
8

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2024-27432 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
3Timeline events
2ADP providers
7Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
CVECVE Program Container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinuxba37b7caf1ed2395cc84d8f823ff933975f1f789, ba37b7caf1ed2395cc84d8f823ff933975f1f789, ba37b7caf1ed2395cc84d8f823ff933975f1f789, ba37b7caf1ed2395cc84d8f823ff933975f1f789, ba37b7caf1ed2395cc84d8f823ff933975f1f789, ba37b7caf1ed2395cc84d8f823ff933975f1f789unaffected
LinuxLinux5.13, 0, 5.15.153, 6.1.83, 6.6.23, 6.7.11, 6.8.2, 6.9affected
Weakness

CWE details

No CWE listed

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