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CVE Record

CVE-2024-26925: netfilter: nf_tables: release mutex after nft_gc_seq_end from abort path

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: release mutex after nft_gc_seq_end from abort path The commit mutex should not be released during the critical section between nft_gc_seq_begin() and nft_gc_seq_end(), otherwise, async GC worker could collect expired objects and get the released commit lock within the same GC sequence. nf_tables_module_autoload() temporarily releases the mutex to load module dependencies, then it goes back to replay the transaction again. Move it at the end of the abort phase after nft_gc_seq_end() is called.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2024-26925 is a Linux kernel nf_tables locking flaw. Under specific transaction-abort and garbage-collection timing, kernel cleanup can run while a commit lock has been released too early. The bundle does not provide CVSS, impact class, or confirmed exploitation, so urgency depends on Linux exposure and vendor kernel status.

Executive priority

Treat as a kernel maintenance priority with uncertain severity. Patch through normal security update channels, escalating for shared Linux infrastructure, security appliances, or environments where kernel compromise would have broad operational impact.

Technical view

The issue is in Linux netfilter nf_tables. The commit mutex could be released inside the critical section between nft_gc_seq_begin() and nft_gc_seq_end(), letting an async GC worker collect expired objects and acquire the released commit lock in the same GC sequence. Stable fixes move module autoload mutex release after nft_gc_seq_end() during abort handling.

Likely exposure

Exposure is likely limited to Linux systems running affected kernel versions with nf_tables/netfilter available. The bundle lists multiple affected stable-series versions, including 5.4.274, 5.10.215, 5.15.155, 6.1.86, 6.6.26, 6.8.5, and 6.9.

Exploitation context

The provided sources do not state active exploitation, and KEV is false. The description suggests a race in kernel transaction cleanup, but the bundle does not provide exploit prerequisites, attacker position, or impact details.

Researcher notes

Evidence is incomplete for impact and exploitation. Analysis should focus on affected kernel lineage, nf_tables transaction abort behavior, and whether vendor backports include the mutex-ordering fix. Avoid assuming exploitability beyond the provided race description.

Mitigation direction

  • Upgrade to a vendor kernel that includes the referenced stable Linux fixes.
  • Check Debian, Siemens, or relevant vendor advisories for product-specific remediation.
  • Prioritize systems using nftables/netfilter in shared or exposed environments.
  • Track distribution kernel package status rather than applying raw commits blindly.

Validation and detection

  • Inventory Linux kernel versions across servers, appliances, and container hosts.
  • Check whether deployed kernels are listed as affected in vendor advisories.
  • Confirm updated kernels include the referenced stable fix commits.
  • Verify nftables/netfilter exposure where local policy permits.
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-2024-26925 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
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

CVECVE Program Container
CISA-ADPCISA ADP Vulnrichment
other:ssvc
siemens-SADPADP container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux4b6346dc1edfb9839d6edee7360ed31a22fa6c95, 23292bdfda5f04e704a843b8f97b0eb95ace1ca6, b44a459c6561595ed7c3679599c5279204132b33, 5d319f7a81431c6bb32eb4dc7d7975f99e2c8c66, 720344340fb9be2765bbaab7b292ece0a4570eae, 720344340fb9be2765bbaab7b292ece0a4570eae, 720344340fb9be2765bbaab7b292ece0a4570eae, f85ca36090cbb252bcbc95fc74c2853fc792694f, e07e68823116563bdbc49cef185cda6f463bc534, 5.4.262, 5.10.198, 5.15.134, 6.1.56, 4.19.316, 6.4.13unaffected
LinuxLinux6.5, 0, 5.4.274, 5.10.215, 5.15.155, 6.1.86, 6.6.26, 6.8.5, 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.