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CVE Record

CVE-2025-38292: wifi: ath12k: fix invalid access to memory

In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: fix invalid access to memory In ath12k_dp_rx_msdu_coalesce(), rxcb is fetched from skb and boolean is_continuation is part of rxcb. Currently, after freeing the skb, the rxcb->is_continuation accessed again which is wrong since the memory is already freed. This might lead use-after-free error. Hence, fix by locally defining bool is_continuation from rxcb, so that after freeing skb, is_continuation can be used. Compile tested only.

HighCVSS 8.8Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

A Linux Wi-Fi driver may read memory after it has been freed while processing received data. The supplied CVSS score is 8.8, indicating potentially severe confidentiality, integrity, and availability impact. Exposure is limited to systems using the affected ath12k driver and vulnerable kernel code.

Executive priority

Treat this as a high-priority kernel maintenance issue for ath12k-equipped devices. Accelerate inventory and vendor-supported updates where wireless proximity is plausible. Emergency incident handling is not justified by the supplied evidence alone because active exploitation and demonstrated real-world impact are not documented.

Technical view

ath12k_dp_rx_msdu_coalesce() retrieves rxcb from an skb, frees that skb, then accesses rxcb->is_continuation. The stable fix copies the Boolean value before freeing the skb, preventing the possible use-after-free. The source states the change was compile-tested only.

Likely exposure

Prioritize Linux devices using the ath12k wireless driver, particularly those within adjacent wireless reach. The bundle lists versions including 6.3, 6.12.34, 6.15.3, and 6.16, but its flattened version data does not establish reliable affected or fixed ranges. Confirm status with the kernel distributor.

Exploitation context

The CVSS vector describes an adjacent-network, low-complexity condition requiring no privileges or user interaction. However, the bundle provides no evidence of public exploitation or a working exploit, and the CVE is not listed as KEV. The description says the flaw might cause a use-after-free; it does not document demonstrated impact.

Researcher notes

The defect is a narrowly described lifetime error involving skb-derived rxcb state. Three stable-kernel commits are cited as fixes. Exact vulnerable version boundaries are unclear in the supplied normalized data, and no CWE is assigned. Assess backports by commit inclusion rather than version-number assumptions.

Mitigation direction

  • Update to a vendor-supported kernel containing the applicable cited stable fix.
  • Check Linux distributor guidance for precise affected and corrected package versions.
  • Prioritize ath12k-enabled systems reachable through untrusted or shared wireless environments.
  • Test the update carefully because the submitted fix was compile-tested only.

Validation and detection

  • Inventory systems that load or depend upon the ath12k wireless driver.
  • Map installed kernel packages against distributor advisories and supported release metadata.
  • Confirm the deployed kernel incorporates the applicable cited stable commit.
  • After updating, test ath12k connectivity and monitor for kernel memory errors or crashes.
Prepared
Confidence
medium
Sources
5

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-2025-38292 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
8.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:A/AC:L/PR:N/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
0ADP providers
4Source links

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
8.8CVSS 3.1HighCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H2.85.9Linux

Vulnerability scoring details

Base CVSS 3.1 score

8.8High
CVSS 3.1 vector shape for CVE-2025-38292Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:A/AC:L/PR:N/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.

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinuxd889913205cf7ebda905b1e62c5867ed4e39f6c2, d889913205cf7ebda905b1e62c5867ed4e39f6c2, d889913205cf7ebda905b1e62c5867ed4e39f6c2unaffected
LinuxLinux6.3, 0, 6.12.34, 6.15.3, 6.16affected
Weakness

CWE details

No CWE listed

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