What’s Vulnerable › Vulnerabilities

CVE-2024-57995: wifi: ath12k: fix read pointer after free in ath12k_mac_assign_vif_to_vdev()

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-02-27 · updated 2026-08-04
• Weakness: CWE-416

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: fix read pointer after free in ath12k_mac_assign_vif_to_vdev() In ath12k_mac_assign_vif_to_vdev(), if arvif is created on a different radio, it gets deleted from that radio through a call to ath12k_mac_unassign_link_vif(). This action frees the arvif pointer. Subsequently, there is a check involving arvif, which will result in a read-after-free scenario. Fix this by moving this check after arvif is again assigned via call to ath12k_mac_assign_link_vif(). Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1

Affected products

• Linux kernel: from 6.10 before 6.13.2 — fixed in 6.13.2

How to fix

Upgrade to a fixed version: Linux kernel 6.13.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/57100b87c77818cb0d582a92e5cb32fff85c757d
• https://git.kernel.org/stable/c/5a10971c7645a95f5d5dc23c26fbac4bf61801d0
• https://git.kernel.org/stable/c/f3a95a312419e4f1e992525917da9dbcd247038f

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