{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74367", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.888Z", "datePublished": "2026-08-15T05:58:48.938Z", "dateUpdated": "2026-08-17T05:46:25.345Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T05:46:25.345Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath12k: fix inconsistent arvif state in vdev_create error paths\n\nath12k_mac_vdev_create() has three error path issues that leave arvif\nin an inconsistent state:\n\n1. When ath12k_wmi_vdev_create() fails, the function returns directly\n without clearing arvif->ar, which was already set before the WMI\n call. Subsequent code checking arvif->ar to determine vdev readiness\n will see a non-NULL value despite no vdev existing in firmware.\n\n2. When ath12k_wmi_send_peer_delete_cmd() fails in err_peer_del, the\n code jumped to err: skipping the DP peer cleanup and vdev rollback,\n leaving num_created_vdevs, vdev maps and arvif list membership live.\n\n3. When ath12k_wait_for_peer_delete_done() fails, the code jumped to\n err_vdev_del: skipping the DP peer cleanup.\n\nFix by changing the ath12k_wmi_vdev_create() failure to goto err instead\nof returning directly, routing both err_peer_del failure paths through\nerr_dp_peer_del: for proper DP peer and vdev rollback, and consolidating\nthe arvif state cleanup at err:.\n\nTested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00302-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.115823.3"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - ath12k_mac_vdev_create() is only reached from mac80211 driver callbacks (assign_vif_chanctx, hw_scan, remain_on_channel) invoked by nl80211/generic-netlink WiFi management commands, not from remote WiFi frame processing.\nAC:L - An attacker with CAP_NET_ADMIN can repeatedly create AP/scan interfaces and race teardown to stress firmware WMI commands, reliably provoking vdev_create or peer-delete failures/timeouts on error rollback paths they control.\nPR:L - Triggering vdev creation requires nl80211 operations (NEW_INTERFACE, START_AP, TRIGGER_SCAN) gated by GENL_UNS_ADMIN_PERM; this capability is obtainable by an unprivileged user inside a user+network namespace via unshare -Urn.\nUI:N - Exploitation requires no action by another user; the attacker directly issues the nl80211 interface/scan operations that drive ath12k_mac_vdev_create() and its faulty error paths.\nS:U - The bug corrupts ath12k driver/kernel state on the same host; it does not cross a VM, container, or IOMMU security boundary to affect a separate security authority.\nC:H - Incomplete rollback leaves orphaned DP peers and stale vdev/arvif bookkeeping while firmware objects remain live, enabling heap corruption that can be leveraged for arbitrary kernel memory reads.\nI:H - Inconsistent is_created, vdev maps, and arvif list membership with uncleared DP peers permits subsequent driver operations on stale objects, enabling heap corruption and potential arbitrary kernel write or code execution.\nA:H - Error paths can leave is_created true with arvif->ar NULL while the arvif stays on arvifs; later nl80211-driven callbacks dereference arvif->ar unchecked, causing kernel NULL pointer oops/panic and persistent WiFi DoS."}]}], "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/mac.c"], "versions": [{"version": "477cabfdb776b571fab425813c074f30c02a5cf6", "lessThan": "e0140e094b196d92f2a4ce167ee73cbfab000290", "status": "affected", "versionType": "git"}, {"version": "477cabfdb776b571fab425813c074f30c02a5cf6", "lessThan": "c972636efc63f0f43d725b59805dd1ae5bc4b31e", "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/mac.c"], "versions": [{"version": "6.13", "status": "affected"}, {"version": "0", "lessThan": "6.13", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "6.13", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/e0140e094b196d92f2a4ce167ee73cbfab000290"}, {"url": "https://git.kernel.org/stable/c/c972636efc63f0f43d725b59805dd1ae5bc4b31e"}], "title": "wifi: ath12k: fix inconsistent arvif state in vdev_create error paths", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/wireless/ath/ath12k/mac.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "e0140e094b196d92f2a4ce167ee73cbfab000290", "status": "affected", "version": "477cabfdb776b571fab425813c074f30c02a5cf6", "versionType": "git"}, {"lessThan": "c972636efc63f0f43d725b59805dd1ae5bc4b31e", "status": "affected", "version": "477cabfdb776b571fab425813c074f30c02a5cf6", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/wireless/ath/ath12k/mac.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.13"}, {"lessThan": "6.13", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath12k: fix inconsistent arvif state in vdev_create error paths\n\nath12k_mac_vdev_create() has three error path issues that leave arvif\nin an inconsistent state:\n\n1. When ath12k_wmi_vdev_create() fails, the function returns directly\n without clearing arvif->ar, which was already set before the WMI\n call. Subsequent code checking arvif->ar to determine vdev readiness\n will see a non-NULL value despite no vdev existing in firmware.\n\n2. When ath12k_wmi_send_peer_delete_cmd() fails in err_peer_del, the\n code jumped to err: skipping the DP peer cleanup and vdev rollback,\n leaving num_created_vdevs, vdev maps and arvif list membership live.\n\n3. When ath12k_wait_for_peer_delete_done() fails, the code jumped to\n err_vdev_del: skipping the DP peer cleanup.\n\nFix by changing the ath12k_wmi_vdev_create() failure to goto err instead\nof returning directly, routing both err_peer_del failure paths through\nerr_dp_peer_del: for proper DP peer and vdev rollback, and consolidating\nthe arvif state cleanup at err:.\n\nTested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00302-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.115823.3"}], "id": "CVE-2026-74367", "lastModified": "2026-08-17T06:19:31.537", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2026-08-15T06:22:38.407", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c972636efc63f0f43d725b59805dd1ae5bc4b31e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e0140e094b196d92f2a4ce167ee73cbfab000290"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}