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CVE Record

CVE-2024-26966: clk: qcom: mmcc-apq8084: fix terminating of frequency table arrays

In the Linux kernel, the following vulnerability has been resolved: clk: qcom: mmcc-apq8084: fix terminating of frequency table arrays The frequency table arrays are supposed to be terminated with an empty element. Add such entry to the end of the arrays where it is missing in order to avoid possible out-of-bound access when the table is traversed by functions like qcom_find_freq() or qcom_find_freq_floor(). Only compile tested.

HighCVSS 7.8Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

A Qualcomm APQ8084 Linux clock driver omitted end markers from frequency lists. Kernel code could therefore read beyond those lists while selecting clock rates. Exposure appears platform-specific and requires local, low-privileged access under the supplied CVSS vector. The potential impact is rated high, but the sources do not demonstrate practical exploitation.

Executive priority

Use targeted high-priority remediation for affected APQ8084 systems, especially those exposed to untrusted local users or applications. Do not treat this as a broad internet-facing emergency based on current evidence. Rapidly establish hardware and driver applicability, then apply supported kernel updates through normal change controls.

Technical view

Frequency-table arrays in mmcc-apq8084 lacked empty sentinel elements expected by qcom_find_freq() and qcom_find_freq_floor(). Traversal could continue beyond array boundaries, causing an out-of-bounds access. Stable kernel changes add the missing terminators. The supplied assessment is CVSS 3.1 7.8: local access, low complexity, low privileges, no user interaction, and potentially high confidentiality, integrity, and availability impact.

Likely exposure

Likely exposure is limited to Linux systems where the Qualcomm APQ8084 multimedia clock-controller driver and relevant hardware are present. The supplied version data spans multiple kernel branches but is insufficiently precise for package-level conclusions. Systems without this driver or platform are unlikely to reach the vulnerable code. Confirm status through the operating-system or device vendor.

Exploitation context

The supplied record is not in CISA KEV and provides no evidence of active exploitation or a public working exploit. The CVSS vector describes a local, low-privileged attack rather than remote network exploitation. Reachability and attacker control of the affected frequency lookup are not established by the provided sources.

Researcher notes

No CWE is assigned in the supplied record. The defect is described as a possible out-of-bounds access caused by absent frequency-table sentinels; concrete memory disclosure, corruption, or privilege-escalation behavior is not demonstrated. The upstream change was only compile-tested, so runtime validation evidence is limited. The flattened affected-version data should not replace branch-specific vendor advisories.

Mitigation direction

  • Install the applicable vendor or distribution kernel update containing the stable fix.
  • Prioritize relevant APQ8084 devices that permit local access by untrusted users or applications.
  • If updates are unavailable, consult the device or distribution vendor for supported mitigation guidance.
  • Restrict unnecessary local access until affected systems are updated or confirmed not exposed.

Validation and detection

  • Inventory kernel versions, device platforms, and distribution package security status for CVE-2024-26966.
  • Confirm whether the APQ8084 multimedia clock-controller driver is built, deployed, or applicable.
  • Verify the installed kernel includes the appropriate stable fix or vendor backport.
  • After updating, test normal boot, multimedia clocks, and dependent device functions.
Prepared
Confidence
medium
Sources
6

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.

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CVE-2024-26966 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

1CVSS vectors
3Timeline events
2ADP providers
12Source links

SSVC decision data

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

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.8CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9Linux

Vulnerability scoring details

Base CVSS 3.1 score

7.8High
CVSS 3.1 vector shape for CVE-2024-26966Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

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

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux2b46cd23a5a2cf0b8d3583338b63409f5e78e7cd, 2b46cd23a5a2cf0b8d3583338b63409f5e78e7cd, 2b46cd23a5a2cf0b8d3583338b63409f5e78e7cd, 2b46cd23a5a2cf0b8d3583338b63409f5e78e7cd, 2b46cd23a5a2cf0b8d3583338b63409f5e78e7cd, 2b46cd23a5a2cf0b8d3583338b63409f5e78e7cd, 2b46cd23a5a2cf0b8d3583338b63409f5e78e7cd, 2b46cd23a5a2cf0b8d3583338b63409f5e78e7cd, 2b46cd23a5a2cf0b8d3583338b63409f5e78e7cdunaffected
LinuxLinux3.17, 0, 4.19.312, 5.4.274, 5.10.215, 5.15.154, 6.1.84, 6.6.24, 6.7.12, 6.8.3, 6.9affected
Weakness

CWE details

No CWE listed

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