{"id":"CVE-2026-97442","published":"2026-09-24T17:17:22.433","lastModified":"2026-09-25T13:17:27.880","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: fix invalid data access in ath11k_dp_rx_h_undecap_nwifi\n\nIn certain cases, hardware might provide packets with a\nlength greater than the maximum native Wi-Fi header length.\nThis can lead to accessing and modifying fields in the header\nwithin the ath11k_dp_rx_h_undecap_nwifi() function for the\nDP_RX_DECAP_TYPE_NATIVE_WIFI decap type and\npotentially result in invalid data access and memory corruption.\n\nKernel stack is corrupted in: ath11k_dp_rx_h_undecap+0x6b0/0x6b0 [ath11k]\nCall trace:\n ath11k_dp_rx_h_mpdu+0x0/0x2e8 [ath11k]\n ath11k_dp_rx_h_mpdu+0x1e0/0x2e8 [ath11k]\n ath11k_dp_rx_wbm_err+0x1e0/0x450 [ath11k]\n ath11k_dp_rx_process_wbm_err+0x2fc/0x460 [ath11k]\n ath11k_dp_service_srng+0x2e0/0x348 [ath11k]\n\nAdd a sanity check before processing the SKB to prevent invalid\ndata access in the undecap native Wi-Fi function for the\nDP_RX_DECAP_TYPE_NATIVE_WIFI decap type.\n\nThis adapted from the discussion/patch of the ath12k driver [1].\n\nTested-on: WCN6855 hw2.1 PCI WLAN.HSP.1.1-04685-QCAHSPSWPL_V1_V2_SILICONZ_IOE-1","cvssScore":8.8,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/00738665c875ab34efa7126ea63c9d70b48ee169","tags":[]},{"url":"https://git.kernel.org/stable/c/1c0a13be76db3c1cf774aa11d9f4c3f8239ac567","tags":[]},{"url":"https://git.kernel.org/stable/c/6b471e9aefee9ed73278eb1141e0d8530a56fae9","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"The flaw allows for potential memory corruption due to invalid data access in the ath11k_dp_rx_h_undecap_nwifi function when processing packets with a length greater than the maximum native Wi-Fi header length.","exploitability":"Exploitation requires specific packet crafting and is moderately difficult, as it depends on the hardware providing packets with an invalid length.","blast_radius":"If exploited, it could lead to memory corruption and potentially allow an attacker to execute arbitrary code or cause a denial of service.","remediation":"Upgrade to the specific version 5.10.100 or later, as published in the advisory.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["memory-corruption","kernel","wireless"],"model":"qwen2.5:7b-instruct","analyzedAt":"2026-09-29T09:01:58.776Z"}}