CVE-2025-37943

wifi: ath12k: Fix invalid data access in ath12k_dp_rx_h_undecap_nwifi

State: Published
Severity: 8.8 High
Published: May 20, 2025
Updated: Aug 5, 2026
Reserved: Apr 16, 2025

Description

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

wifi: ath12k: Fix invalid data access in ath12k_dp_rx_h_undecap_nwifi

In certain cases, hardware might provide packets with a length greater than the maximum native Wi-Fi header length. This can lead to accessing and modifying fields in the header within the ath12k_dp_rx_h_undecap_nwifi function for DP_RX_DECAP_TYPE_NATIVE_WIFI decap type and potentially resulting in invalid data access and memory corruption.

Add a sanity check before processing the SKB to prevent invalid data access in the undecap native Wi-Fi function for the DP_RX_DECAP_TYPE_NATIVE_WIFI decap type.

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

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before 7f1d986da5c6abb75ffe4d0d325fc9b341c41a1cAffected d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before 3abe15e756481c45f6acba3d476cb3ca4afc3b61Affected d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before 6ee653194ddb83674913fd2727b8ecfae0597adeAffected d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before 50be1fb76556e80af9f5da80f28168b6c71bce58Affected d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before 9a0dddfb30f120db3851627935851d262e4e7acbAffected
LinuxLinux	6.3Affected before 6.3Not affected 6.6.88 through 6.6.Not affected 6.12.24 through 6.12.Not affected 6.13.12 through 6.13.Not affected 6.14.3 through 6.14.Not affected 6.15 and laterNot affected

Product

Versions

LinuxLinux

d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before 7f1d986da5c6abb75ffe4d0d325fc9b341c41a1cAffected
d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before 3abe15e756481c45f6acba3d476cb3ca4afc3b61Affected
d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before 6ee653194ddb83674913fd2727b8ecfae0597adeAffected
d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before 50be1fb76556e80af9f5da80f28168b6c71bce58Affected
d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before 9a0dddfb30f120db3851627935851d262e4e7acbAffected

LinuxLinux

6.3Affected
before 6.3Not affected
6.6.88 through 6.6.*Not affected
6.12.24 through 6.12.*Not affected
6.13.12 through 6.13.*Not affected
6.14.3 through 6.14.*Not affected
6.15 and laterNot affected

References

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