CVE-2023-53180
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-15

Last updated on: 2025-12-02

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: Avoid NULL pointer access during management transmit cleanup Currently 'ar' reference is not added in skb_cb. Though this is generally not used during transmit completion callbacks, on interface removal the remaining idr cleanup callback uses the ar pointer from skb_cb from management txmgmt_idr. Hence fill them during transmit call for proper usage to avoid NULL pointer dereference. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
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Meta Information
Published
2025-09-15
Last Modified
2025-12-02
Generated
2026-06-16
AI Q&A
2025-09-15
EPSS Evaluated
2026-06-15
NVD
CVE-2023-53180
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel From 6.3 (inc) to 6.4.7 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-476 The product dereferences a pointer that it expects to be valid but is NULL.
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Executive Summary

This vulnerability in the Linux kernel's wifi ath12k driver involves a NULL pointer dereference during management transmit cleanup. Specifically, the 'ar' reference is not added in skb_cb, which is generally not used during transmit completion callbacks. However, on interface removal, the remaining idr cleanup callback uses the 'ar' pointer from skb_cb from management txmgmt_idr. Because 'ar' is not properly set during transmit, this can lead to a NULL pointer dereference. The fix involves filling the 'ar' pointer during transmit calls to avoid this issue.

Impact Analysis

This vulnerability can cause a NULL pointer dereference in the Linux kernel's wifi driver, which may lead to kernel crashes or system instability during wifi interface removal or management transmit cleanup. This can impact system reliability and availability.

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