CVE-2026-97442

Published: Set 24, 2026 Last Modified: Set 25, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 8,8
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Attack Vector: adjacent_network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high

Description

AI Translation Available

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

wifi: ath11k: fix invalid data access in ath11k_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 ath11k_dp_rx_h_undecap_nwifi() function for the
DP_RX_DECAP_TYPE_NATIVE_WIFI decap type and
potentially result in invalid data access and memory corruption.

Kernel stack is corrupted in: ath11k_dp_rx_h_undecap+0x6b0/0x6b0 [ath11k]
Call trace:
ath11k_dp_rx_h_mpdu+0x0/0x2e8 [ath11k]
ath11k_dp_rx_h_mpdu+0x1e0/0x2e8 [ath11k]
ath11k_dp_rx_wbm_err+0x1e0/0x450 [ath11k]
ath11k_dp_rx_process_wbm_err+0x2fc/0x460 [ath11k]
ath11k_dp_service_srng+0x2e0/0x348 [ath11k]

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.

This adapted from the discussion/patch of the ath12k driver [1].

Tested-on: WCN6855 hw2.1 PCI WLAN.HSP.1.1-04685-QCAHSPSWPL_V1_V2_SILICONZ_IOE-1

https://git.kernel.org/stable/c/00738665c875ab34efa7126ea63…
https://git.kernel.org/stable/c/00738665c875ab34efa7126ea63c9d70b48ee169
https://git.kernel.org/stable/c/1c0a13be76db3c1cf774aa11d9f…
https://git.kernel.org/stable/c/1c0a13be76db3c1cf774aa11d9f4c3f8239ac567
https://git.kernel.org/stable/c/6b471e9aefee9ed73278eb1141e…
https://git.kernel.org/stable/c/6b471e9aefee9ed73278eb1141e0d8530a56fae9