What’s Vulnerable › Vulnerabilities

CVE-2023-53180: wifi: ath12k: Avoid NULL pointer access during management transmit cleanup

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-09-15 · updated 2026-06-17
• Weakness: CWE-476

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

Affected products

• Linux kernel: from 6.3 before 6.4.7 — fixed in 6.4.7

How to fix

Upgrade to a fixed version: Linux kernel 6.4.7. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/054b5580a36e435692c203c19abdcb9f7734320e
• https://git.kernel.org/stable/c/7382d02160ef93c806fe1c1d4ef1fec445266747

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