CVE-2026-46271

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no uncontrollable race or rare layout is required.\nPR:L - Exploitation requires local suspend capability (typical session/logind user) and an active WoW configuration (often pre-set by NetworkManager; otherwise NL80211_CMD_SET_WOWLAN needs CAP_NET_ADMIN, obtainable in a user network namespace).\nUI:N - Suspend/WoW entry is commonly driven by automatic system power management without a separate deliberate user security action beyond normal laptop use.\nS:U - Impact is confined to the WiFi driver/firmware stack on the same host; it does not cross VM, container, or IOMMU security boundaries.\nC:H - Although the immediate fault is firmware-side, the failure mode cannot rule out disclosure via corrupted firmware/host DMA or WMI shared buffers; per conservative scoring, treat closed firmware memory faults as potential arbitrary read when impact is uncertain.\nI:H - Duplicate WoW offload WMI on multiple MLO vdevs corrupts firmware state; when exploitation path to host integrity is uncertain, score High because firmware compromise over PCIe may enable control of host-visible rings and descriptors.\nA:H - The commit documents WCN7850 firmware crash when WoW offloads are enabled on both MLO links, causing WiFi subsystem failure and broken or wedged suspend/resume on affected devices."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/ath/ath12k/wow.c"], "versions": [{"version": "32f7b19668bd2894f1a236580c2132fc4b9f4449", "lessThan": "7379837c3f9efa576dc2d716ebfaa3a113b3112f", "status": "affected", "versionType": "git"}, {"version": "32f7b19668bd2894f1a236580c2132fc4b9f4449", "lessThan": "e042da1085d9f1686c58a4378d5840f52a36598e", "status": "affected", "versionType": "git"}, {"version": "32f7b19668bd2894f1a236580c2132fc4b9f4449", "lessThan": "e62102ac9b773bdb08475aa9ca24dea61ae98708", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/ath/ath12k/wow.c"], "versions": [{"version": "6.16", "status": "affected"}, {"version": "0", "lessThan": "6.16", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.14", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.4", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "6.18.14"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "6.19.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/7379837c3f9efa576dc2d716ebfaa3a113b3112f"}, {"url": "https://git.kernel.org/stable/c/e042da1085d9f1686c58a4378d5840f52a36598e"}, {"url": "https://git.kernel.org/stable/c/e62102ac9b773bdb08475aa9ca24dea61ae98708"}], "title": "wifi: ath12k: do WoW offloads only on primary link", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-46271", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T15:21:33.891489Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-667", "description": "CWE-667 Improper Locking"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-19T19:36:56.613Z"}}]}}

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{"bugzilla": {"description": "kernel: wifi: ath12k: do WoW offloads only on primary link", "id": "2484447", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2484447"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-372", "details": ["A flaw was found in the Linux kernel's ath12k Wi-Fi driver. When a multi-link connection is active, the firmware incorrectly enables Wake-on-Wireless (WoW) offloads on both primary and secondary links. This misconfiguration can lead to a firmware crash on WCN7850 devices, resulting in a Denial of Service (DoS) for affected systems."], "name": "CVE-2026-46271", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-06-03T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-46271\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-46271\nhttps://lore.kernel.org/linux-cve-announce/2026060339-CVE-2026-46271-3f1c@gregkh/T"], "threat_severity": "Low"}

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