{"id":"CVE-2026-97442","revision":"c7e41a70848641d69c8baf1d164ee075","records":[{"revision":"c7e41a70848641d69c8baf1d164ee075","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-97442","aliases":[],"title":"wifi: ath11k: fix invalid data access in ath11k_dp_rx_h_undecap_nwifi","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","state":0,"publishedAt":"2026-09-24T16:03:56.458+00:00","modifiedAt":"2026-10-03T10:58:27.589+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/wireless/ath/ath11k/dp_rx.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"acc79d981c1462b22a7a2cb0d39725f8c01fc425\",\n                            \"lessThan\": \"958cf3696ddc5ccafd3d0b8b0c03d90bcd771c0c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"acc79d981c1462b22a7a2cb0d39725f8c01fc425\",\n                            \"lessThan\": \"b4ef30f1d107aae460edf731a7c2d187fbc46a32\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"acc79d981c1462b22a7a2cb0d39725f8c01fc425\",\n                            \"lessThan\": \"1c0a13be76db3c1cf774aa11d9f4c3f8239ac567\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"acc79d981c1462b22a7a2cb0d39725f8c01fc425\",\n                            \"lessThan\": \"00738665c875ab34efa7126ea63c9d70b48ee169\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"acc79d981c1462b22a7a2cb0d39725f8c01fc425\",\n                            \"lessThan\": \"6b471e9aefee9ed73278eb1141e0d8530a56fae9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/wireless/ath/ath11k/dp_rx.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.7\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.7\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.189\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.158\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.111\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.53\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/958cf3696ddc5ccafd3d0b8b0c03d90bcd771c0c","https://git.kernel.org/stable/c/b4ef30f1d107aae460edf731a7c2d187fbc46a32","https://git.kernel.org/stable/c/1c0a13be76db3c1cf774aa11d9f4c3f8239ac567","https://git.kernel.org/stable/c/00738665c875ab34efa7126ea63c9d70b48ee169","https://git.kernel.org/stable/c/6b471e9aefee9ed73278eb1141e0d8530a56fae9"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-97442","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-97442","identifiers":["CVE-2026-97442"]},"retained":false,"historicalAffected":[]}],"coverage":[]}