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CVE Record

CVE-2024-26694: wifi: iwlwifi: fix double-free bug

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: fix double-free bug The storage for the TLV PC register data wasn't done like all the other storage in the drv->fw area, which is cleared at the end of deallocation. Therefore, the freeing must also be done differently, explicitly NULL'ing it out after the free, since otherwise there's a nasty double-free bug here if a file fails to load after this has been parsed, and we get another free later (e.g. because no other file exists.) Fix that by adding the missing NULL assignment.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2024-26694 is a Linux kernel bug in the iwlwifi wireless driver. A firmware-loading error can cause the same memory to be freed twice, potentially leading to a crash or memory corruption. Public sources do not provide a CVSS score or evidence of active exploitation.

Executive priority

Treat as routine-to-priority kernel maintenance for Linux wireless endpoints. Escalate if many managed laptops use affected kernels and iwlwifi. Current public evidence does not support emergency response absent vendor-specific severity or exploitation reports.

Technical view

The issue is a double-free in iwlwifi TLV PC register data handling. The fix explicitly NULLs the pointer after free because this storage was not cleared with the rest of drv->fw during deallocation. The vulnerable path occurs when a file fails to load after the TLV data has been parsed.

Likely exposure

Exposure is most likely on Linux systems running affected kernel builds with the iwlwifi driver present or in use. Systems without this driver or wireless hardware are less likely to be exposed. Distribution backports may change version-based assessment.

Exploitation context

Sources describe a failure path during firmware file loading, not a public exploit. The CVE is not listed as CISA KEV in the provided bundle. No cited source states remote exploitation, privilege impact, or active attacks.

Researcher notes

The public record is sparse: no CVSS, CWE, exploit report, or detailed impact statement is provided. Analysis should focus on kernel versions, distro backports, driver reachability, and whether firmware-loading failure paths are practically triggerable in the target environment.

Mitigation direction

  • Update to a Linux kernel or distribution package containing the referenced stable fixes.
  • Check your Linux distribution advisory for the exact fixed package version.
  • Prioritize laptops and endpoints using the iwlwifi driver.
  • If update timing is uncertain, assess whether iwlwifi is loaded or required.

Validation and detection

  • Inventory Linux kernel versions across endpoints and servers.
  • Check whether the iwlwifi module is present or loaded.
  • Confirm vendor kernel packages include the referenced stable commits.
  • Review distribution changelogs for CVE-2024-26694 backports.
Prepared
Confidence
medium
Sources
5

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-2024-26694 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
4Source 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
LinuxLinux5e31b3df86ec6fbb925eee77fe2c450099c61dff, 5e31b3df86ec6fbb925eee77fe2c450099c61dff, 5e31b3df86ec6fbb925eee77fe2c450099c61dffunaffected
LinuxLinux6.4, 0, 6.6.18, 6.7.6, 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.