CVE-2024-57995

wifi: ath12k: fix read pointer after free in ath12k_mac_assign_vif_to_vdev()

State: Published
Severity: 8.8 High
Published: Feb 27, 2025
Updated: Aug 5, 2026
Reserved: Feb 27, 2025

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

Scores

CVSS	Score	Vector	Source
3.1	8.8 High	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	Linux
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-416 Use After Free

Affected Products

Product	Versions
LinuxLinux	b5068bc9180d06a5ac242b0f9263047c14f86211 to before 57100b87c77818cb0d582a92e5cb32fff85c757dAffected b5068bc9180d06a5ac242b0f9263047c14f86211 to before f3a95a312419e4f1e992525917da9dbcd247038fAffected b5068bc9180d06a5ac242b0f9263047c14f86211 to before 5a10971c7645a95f5d5dc23c26fbac4bf61801d0Affected
LinuxLinux	6.10Affected before 6.10Not affected 6.12.57 through 6.12.Not affected 6.13.2 through 6.13.Not affected 6.14 and laterNot affected

References

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