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CVE Record

CVE-2024-36929: net: core: reject skb_copy(_expand) for fraglist GSO skbs

In the Linux kernel, the following vulnerability has been resolved: net: core: reject skb_copy(_expand) for fraglist GSO skbs SKB_GSO_FRAGLIST skbs must not be linearized, otherwise they become invalid. Return NULL if such an skb is passed to skb_copy or skb_copy_expand, in order to prevent a crash on a potential later call to skb_gso_segment.

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 can lead to a crash when certain network packet buffers are copied incorrectly. The public record does not provide CVSS, confirmed exploitation, or detailed impact beyond crash prevention. Treat it as an availability risk for Linux-based systems until vendor advisories confirm applicability.

Executive priority

Schedule remediation through normal kernel and appliance patch processes, with higher urgency for network-exposed systems where a kernel crash could affect service availability.

Technical view

The fix rejects skb_copy and skb_copy_expand on SKB_GSO_FRAGLIST skbs because linearizing those buffers makes them invalid and can later crash skb_gso_segment. The CVE record lists Linux kernel versions and stable kernel commits, with downstream notices from Debian, NetApp, and Siemens.

Likely exposure

Exposure is most likely on systems running affected Linux kernel builds or appliances whose vendors ship affected kernels. Confirm through each vendor advisory because the bundle lists Linux, Debian LTS, NetApp, and Siemens references but not product-specific affected version details.

Exploitation context

No CISA KEV listing is present, and the provided bundle does not cite active exploitation or a public exploit. Evidence supports a potential crash path, not remote code execution or privilege escalation.

Researcher notes

The core condition is invalid handling of fraglist GSO skbs during skb_copy or skb_copy_expand. The source bundle lacks CVSS, exploitability analysis, and complete downstream affected-version mapping, so validation should stay vendor-specific.

Mitigation direction

  • Apply the relevant Linux stable kernel update from your distribution or vendor.
  • Check Debian, NetApp, and Siemens advisories for product-specific remediation.
  • Prioritize internet-facing or high-traffic Linux network systems for assessment.
  • Track vendor guidance if patches are not yet available for an appliance.

Validation and detection

  • Inventory Linux kernel versions across servers, appliances, and embedded systems.
  • Compare installed kernels against vendor advisories and stable fix references.
  • Confirm patched kernels are deployed after maintenance windows.
  • Monitor for vendor updates where affected product details are incomplete.
Prepared
Confidence
medium
Sources
12

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

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

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CVE-2024-36929 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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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
3ADP providers
11Source 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
siemens-SADPADP container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux3a1296a38d0cf62bffb9a03c585cbd5dbf15d596, 3a1296a38d0cf62bffb9a03c585cbd5dbf15d596, 3a1296a38d0cf62bffb9a03c585cbd5dbf15d596, 3a1296a38d0cf62bffb9a03c585cbd5dbf15d596, 3a1296a38d0cf62bffb9a03c585cbd5dbf15d596, 3a1296a38d0cf62bffb9a03c585cbd5dbf15d596unaffected
LinuxLinux5.6, 0, 5.10.217, 5.15.159, 6.1.91, 6.6.31, 6.8.10, 6.9affected
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.