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CVE Record

CVE-2024-26679: inet: read sk->sk_family once in inet_recv_error()

In the Linux kernel, the following vulnerability has been resolved: inet: read sk->sk_family once in inet_recv_error() inet_recv_error() is called without holding the socket lock. IPv6 socket could mutate to IPv4 with IPV6_ADDRFORM socket option and trigger a KCSAN warning.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This is a Linux kernel networking race condition. The public record says an IPv6 socket can change form while error-handling code reads socket family data without the socket lock, triggering a KCSAN warning. The available sources do not describe business impact, privilege requirements, or practical exploitation.

Executive priority

Treat this as routine kernel hygiene unless vendor guidance raises severity. There is no cited evidence of active exploitation or defined impact, but kernel fixes should not be deferred indefinitely on shared infrastructure.

Technical view

The fix changes inet_recv_error() to read sk->sk_family once because the function runs without holding the socket lock. The race involves IPv6 sockets mutating to IPv4 via IPV6_ADDRFORM. Public metadata lists multiple Linux stable-branch fixes and Debian LTS advisories, but no CVSS, CWE, or exploit detail.

Likely exposure

Exposure is limited to systems running affected Linux kernel versions or downstream builds that have not received the relevant stable or distribution backport. Appliances, containers, and cloud workloads inherit exposure from their host kernel, not from application packages.

Exploitation context

The source bundle does not show CISA KEV listing, active exploitation, public exploit code, or confirmed real-world abuse. Evidence only supports a kernel data-race bug detected by KCSAN and resolved in upstream stable commits.

Researcher notes

The affected-version metadata is sparse and branch-oriented. Validate against exact downstream kernel packages rather than assuming mainline version strings map cleanly. The only described symptom is a KCSAN warning from an unlocked socket-family read during inet_recv_error().

Mitigation direction

  • Apply kernel updates from your Linux distribution or vendor.
  • Use Debian LTS advisories if running affected Debian LTS kernels.
  • Confirm the relevant stable-branch fix is included in your kernel build.
  • Prioritize shared, multi-tenant, and externally exposed Linux hosts.
  • Monitor vendor advisories for corrected version mapping and backports.

Validation and detection

  • Inventory running kernel versions across servers, appliances, and host nodes.
  • Compare kernel builds with vendor advisories and referenced stable commits.
  • Check distribution changelogs for CVE-2024-26679 backport notes.
  • Verify reboot completion after kernel package updates.
  • Track exceptions where vendor-fixed kernels are unavailable.
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

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CVE-2024-26679 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
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

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinuxf4713a3dfad045d46afcb9c2a7d0bba288920ed4, f4713a3dfad045d46afcb9c2a7d0bba288920ed4, f4713a3dfad045d46afcb9c2a7d0bba288920ed4, f4713a3dfad045d46afcb9c2a7d0bba288920ed4, f4713a3dfad045d46afcb9c2a7d0bba288920ed4, f4713a3dfad045d46afcb9c2a7d0bba288920ed4, f4713a3dfad045d46afcb9c2a7d0bba288920ed4, f4713a3dfad045d46afcb9c2a7d0bba288920ed4, 433337f9c00cac447d020922f59237273f5d92be, 3.17.7unaffected
LinuxLinux3.18, 0, 4.19.307, 5.4.269, 5.10.210, 5.15.149, 6.1.78, 6.6.17, 6.7.5, 6.8affected
Weakness

CWE details

No CWE listed

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