In the Linux kernel, the following vulnerability has been resolved:

wifi: ath12k: Fix a NULL pointer dereference in ath12k_mac_op_hw_scan()

In ath12k_mac_op_hw_scan(), the return value of kzalloc() is directly
used in memcpy(), which may lead to a NULL pointer dereference on
failure of kzalloc().

Fix this bug by adding a check of arg.extraie.ptr.

Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00035.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
d889913205cf7ebda905b1e62c5867ed4e39f6c2 affected < 5a263df398b581189fe632b4ab8440f3dd76c251
d889913205cf7ebda905b1e62c5867ed4e39f6c2 affected < 8ad314da54c6dd223a6b6cc85019160aa842f659
Linux Linux affected
Version Status Constraints
6.3 affected —
0 unaffected < 6.3
6.5.5 unaffected ≤ 6.5.*
6.6 unaffected ≤ *

No data.

No data.

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/5a263df398b581189fe632b4ab8440f3dd76c251 cve-icon cve-icon
https://git.kernel.org/stable/c/8ad314da54c6dd223a6b6cc85019160aa842f659 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025102214-CVE-2023-53721-f0ca@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2023-53721 cve-icon
https://www.cve.org/CVERecord?id=CVE-2023-53721 cve-icon
History

Thu, 23 Oct 2025 10:30:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Vendors & Products Linux
Linux linux Kernel

Thu, 23 Oct 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Moderate

Wed, 22 Oct 2025 13:45:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: Fix a NULL pointer dereference in ath12k_mac_op_hw_scan() In ath12k_mac_op_hw_scan(), the return value of kzalloc() is directly used in memcpy(), which may lead to a NULL pointer dereference on failure of kzalloc(). Fix this bug by adding a check of arg.extraie.ptr. Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4
Title wifi: ath12k: Fix a NULL pointer dereference in ath12k_mac_op_hw_scan()
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-10-30T19:33:08.319Z

Reserved: 2025-10-22T13:21:37.348Z

Link: CVE-2023-53721

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-10-22T14:15:46.803

Modified: 2025-10-22T21:12:48.953

Link: CVE-2023-53721

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-10-22T00:00:00Z

Links: CVE-2023-53721 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-10-23T10:04:30Z

Weaknesses

No weakness.