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CVE Record

CVE-2024-38572: wifi: ath12k: fix out-of-bound access of qmi_invoke_handler()

In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: fix out-of-bound access of qmi_invoke_handler() Currently, there is no terminator entry for ath12k_qmi_msg_handlers hence facing below KASAN warning, ================================================================== BUG: KASAN: global-out-of-bounds in qmi_invoke_handler+0xa4/0x148 Read of size 8 at addr ffffffd00a6428d8 by task kworker/u8:2/1273 CPU: 0 PID: 1273 Comm: kworker/u8:2 Not tainted 5.4.213 #0 Workqueue: qmi_msg_handler qmi_data_ready_work Call trace: dump_backtrace+0x0/0x20c show_stack+0x14/0x1c dump_stack+0xe0/0x138 print_address_description.isra.5+0x30/0x330 __kasan_report+0x16c/0x1bc kasan_report+0xc/0x14 __asan_load8+0xa8/0xb0 qmi_invoke_handler+0xa4/0x148 qmi_handle_message+0x18c/0x1bc qmi_data_ready_work+0x4ec/0x528 process_one_work+0x2c0/0x440 worker_thread+0x324/0x4b8 kthread+0x210/0x228 ret_from_fork+0x10/0x18 The address belongs to the variable: ath12k_mac_mon_status_filter_default+0x4bd8/0xfffffffffffe2300 [ath12k] [...] ================================================================== Add a dummy terminator entry at the end to assist the qmi_invoke_handler() in traversing up to the terminator entry without accessing an out-of-boundary index. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2024-38572 is a Linux kernel flaw in the ath12k Wi-Fi driver. A missing terminator in a QMI message handler table can make kernel code read past the intended handler list. The public record shows a KASAN global out-of-bounds warning and kernel stable fixes, but no CVSS score or confirmed exploitation.

Executive priority

Treat as a targeted Linux kernel maintenance issue, not an emergency from the available evidence. Prioritize patching laptops, appliances, or embedded systems using affected Qualcomm Wi-Fi hardware, and track vendor kernel advisories because public severity and impact details are incomplete.

Technical view

The ath12k_qmi_msg_handlers table lacked a dummy terminator, causing qmi_invoke_handler() to continue traversal and perform a global out-of-bounds read. The fix adds the terminator entry. The issue was tested on QCN9274 hw2.0 PCI hardware. Affected exposure depends on kernels carrying the ath12k driver and related Qualcomm Wi-Fi hardware support.

Likely exposure

Most relevant to Linux systems using ath12k-supported Qualcomm Wi-Fi hardware, especially kernels in affected upstream or downstream ranges before the stable fixes. Servers without this driver loaded or hardware present are less likely exposed. Distribution backports may change exposure and should be checked directly.

Exploitation context

The provided sources do not show active exploitation, public exploit code, or KEV listing. The evidence is a kernel KASAN report showing out-of-bounds read behavior during QMI message handling. Practical impact is not fully characterized in the supplied sources.

Researcher notes

The root cause is table traversal without a terminator in ath12k QMI handler registration. The source record identifies stable commits but does not provide CVSS, CWE, attacker prerequisites, or impact beyond the KASAN out-of-bounds read. Validate against the actual downstream kernel source, not just upstream version labels.

Mitigation direction

  • Update to a vendor kernel containing the referenced stable ath12k fixes.
  • Confirm distribution advisories for backported fixes before relying on version numbers alone.
  • If feasible, avoid loading ath12k on systems that do not need it.
  • Prioritize systems with Qualcomm ath12k Wi-Fi hardware or exposed wireless roles.

Validation and detection

  • Inventory Linux kernels and check whether the ath12k module is present or loaded.
  • Identify systems with Qualcomm ath12k-supported Wi-Fi hardware.
  • Compare kernel package changelogs against the referenced stable commits.
  • Review kernel logs for ath12k, QMI, KASAN, or crash signatures.
  • Verify remediated systems are running a fixed vendor kernel build.
Prepared
Confidence
medium
Sources
6

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

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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
5Source 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
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinuxd889913205cf7ebda905b1e62c5867ed4e39f6c2, d889913205cf7ebda905b1e62c5867ed4e39f6c2, d889913205cf7ebda905b1e62c5867ed4e39f6c2, d889913205cf7ebda905b1e62c5867ed4e39f6c2unaffected
LinuxLinux6.3, 0, 6.6.33, 6.8.12, 6.9.3, 6.10affected
Weakness

CWE details

No CWE listed

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