{"id":"CVE-2026-97442","title":"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…","summary":"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…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-787"],"vendor":"Linux","product":"Linux","affected":["Linux >= acc79d981c1462b22a7a2cb0d39725f8c01fc425 < 958cf3696ddc5ccafd3d0b8b0c03d90bcd771c0c","Linux >= acc79d981c1462b22a7a2cb0d39725f8c01fc425 < b4ef30f1d107aae460edf731a7c2d187fbc46a32","Linux >= acc79d981c1462b22a7a2cb0d39725f8c01fc425 < 1c0a13be76db3c1cf774aa11d9f4c3f8239ac567","Linux >= acc79d981c1462b22a7a2cb0d39725f8c01fc425 < 00738665c875ab34efa7126ea63c9d70b48ee169","Linux >= acc79d981c1462b22a7a2cb0d39725f8c01fc425 < 6b471e9aefee9ed73278eb1141e0d8530a56fae9","Linux 5.7"],"published":"2026-09-24","updated":"2026-10-03","sourceUpdated":"2026-10-03T11:17:55.873","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-97442","references":[{"url":"https://git.kernel.org/stable/c/00738665c875ab34efa7126ea63c9d70b48ee169","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/1c0a13be76db3c1cf774aa11d9f4c3f8239ac567","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6b471e9aefee9ed73278eb1141e0d8530a56fae9","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/958cf3696ddc5ccafd3d0b8b0c03d90bcd771c0c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b4ef30f1d107aae460edf731a7c2d187fbc46a32","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-97442.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-97442"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2540412"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-97442"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97442"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-97442.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat","score-dispute"],"epss":0.00254,"epssPercentile":0.16801,"scores":{"nvd":8.8,"vendor":5.5},"ingestedAt":"2026-09-24T16:47:15.878Z","slug":"CVE-2026-97442","body":"## Overview\n\nIn 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\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-97442.json)","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":210593,"id":"CVE-2026-97442","ts":1790316056110,"field":"cvss","old":null,"new":"8.8"},{"seq":210592,"id":"CVE-2026-97442","ts":1790316056110,"field":"severity","old":"none","new":"high"}]}