CVE-2026-97442
Description
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
How to fix
- Linux Linux958cf3696ddc5ccafd3d0b8b0c03d90bcd771c0c, b4ef30f1d107aae460edf731a7c2d187fbc46a32, 1c0a13be76db3c1cf774aa11d9f4c3f8239ac567, 00738665c875ab34efa7126ea63c9d70b48ee169, 6b471e9aefee9ed73278eb1141e0d8530a56fae9 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | acc79d981c1462b22a7a2cb0d39725f8c01fc425 ≤ v < 958cf3696ddc5ccafd3d0b8b0c03d90bcd771c0c, acc79d981c1462b22a7a2cb0d39725f8c01fc425 ≤ v < b4ef30f1d107aae460edf731a7c2d187fbc46a32, acc79d981c1462b22a7a2cb0d39725f8c01fc425 ≤ v < 1c0a13be76db3c1cf774aa11d9f4c3f8239ac567, acc79d981c1462b22a7a2cb0d39725f8c01fc425 ≤ v < 00738665c875ab34efa7126ea63c9d70b48ee169, acc79d981c1462b22a7a2cb0d39725f8c01fc425 ≤ v < 6b471e9aefee9ed73278eb1141e0d8530a56fae9, 5.7 | 958cf3696ddc5ccafd3d0b8b0c03d90bcd771c0c, b4ef30f1d107aae460edf731a7c2d187fbc46a32, 1c0a13be76db3c1cf774aa11d9f4c3f8239ac567, 00738665c875ab34efa7126ea63c9d70b48ee169, 6b471e9aefee9ed73278eb1141e0d8530a56fae9 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.