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CVE Record

CVE-2024-35833: dmaengine: fsl-qdma: Fix a memory leak related to the queue command DMA

In the Linux kernel, the following vulnerability has been resolved: dmaengine: fsl-qdma: Fix a memory leak related to the queue command DMA This dma_alloc_coherent() is undone neither in the remove function, nor in the error handling path of fsl_qdma_probe(). Switch to the managed version to fix both issues.

MediumCVSS 5.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2024-35833 is a Linux kernel memory leak in the Freescale QDMA driver. A local, low-privileged user could potentially trigger resource exhaustion, causing availability impact. It is not described as exposing data or changing system state.

Executive priority

Treat as a normal kernel availability patch, not an emergency internet-facing issue. Prioritize embedded, appliance, or server platforms that use the affected DMA driver, especially where local users or workloads are not fully trusted.

Technical view

The fsl-qdma driver allocated coherent DMA memory during probe, but did not release it in removal or probe error paths. The kernel fix switches to managed allocation so cleanup occurs automatically. CVSS is 5.5, local attack vector, low privileges, no user interaction, high availability impact.

Likely exposure

Most relevant exposure is Linux systems running affected kernel versions where the fsl-qdma DMA engine driver is present and usable. Systems without this driver or relevant hardware are less likely to be practically exposed, but should still follow distribution kernel guidance.

Exploitation context

The provided sources do not show active exploitation, and the CVE is not marked KEV. The CVSS vector requires local access with low privileges. Public sources in the bundle describe the bug and fix, not exploitation in the wild.

Researcher notes

Evidence points to a cleanup bug in driver probe and remove paths. The source bundle does not provide a CWE, exploit proof, or operational trigger details. Avoid assuming broad exploitation beyond local availability impact on systems with the affected driver path.

Mitigation direction

  • Apply the relevant Linux stable kernel or distribution security update.
  • Prioritize systems using the fsl-qdma driver or Freescale/NXP QDMA hardware.
  • Reboot into the patched kernel after update completion.
  • If patching is delayed, reduce unnecessary local user access.
  • Check vendor or distribution advisories for exact fixed package versions.

Validation and detection

  • Inventory Linux kernel versions across affected fleets.
  • Confirm whether fsl-qdma support is enabled or loaded on systems.
  • Verify the installed kernel includes the referenced stable fix.
  • Review distribution advisory status for deployed kernel packages.
  • Check for unexplained local availability issues on relevant systems.
Prepared
Confidence
high
Sources
10

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-2024-35833 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.5 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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
9Source 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
5.5CVSS 3.1MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H1.83.6CISA-ADP

Vulnerability scoring details

Base CVSS 3.1 score

5.5Medium
CVSS 3.1 vector shape for CVE-2024-35833Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

CISA-ADPCISA ADP Vulnrichment
cvssV3_1other:ssvc
CVECVE Program Container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinuxb092529e0aa09829a6404424ce167bf3ce3235e2, b092529e0aa09829a6404424ce167bf3ce3235e2, b092529e0aa09829a6404424ce167bf3ce3235e2, b092529e0aa09829a6404424ce167bf3ce3235e2, b092529e0aa09829a6404424ce167bf3ce3235e2, b092529e0aa09829a6404424ce167bf3ce3235e2, b092529e0aa09829a6404424ce167bf3ce3235e2unaffected
LinuxLinux5.1, 0, 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

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