{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2023-52769", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-05-21T15:19:24.238Z", "datePublished": "2024-05-21T15:30:52.308Z", "dateUpdated": "2026-08-05T09:11:20.267Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T09:11:20.267Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath12k: fix htt mlo-offset event locking\n\nThe ath12k active pdevs are protected by RCU but the htt mlo-offset\nevent handling code calling ath12k_mac_get_ar_by_pdev_id() was not\nmarked as a read-side critical section.\n\nMark the code in question as an RCU read-side critical section to avoid\nany potential use-after-free issues.\n\nCompile tested only." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:A - The vulnerable path runs when ath12k firmware delivers HTT_T2H_MSG_TYPE_MLO_TIMESTAMP_OFFSET_IND over CE/HTC into ath12k_htt_mlo_offset_event_handler during Wi‑Fi 7 MLO sync; an attacker must be in RF range of an MLO-capable ath12k AP/STA to drive multi-link activity and related firmware events, matching Adjacent for Wi‑Fi attacks.\nAC:L - An adjacent attacker can sustain MLO operation (and thus MLO-offset indications) while also forcing the other side of the missing-RCU race via deauth/disassoc teardown or malformed-frame firmware asserts that hit ath12k_core_halt()/mac_op_stop and clear pdevs_active, so both sides of the race are attacker-influenced.\nPR:N - HTT T2H MLO-offset handling runs in the firmware-to-host softirq path with no host account, capability, or authentication check; the worst reasonable case is an unauthenticated peer near an ath12k Wi‑Fi 7 MLO AP/open network.\nUI:N - Once the radio is up with MLO active, firmware MLO-offset indications and recovery/teardown workqueues run automatically with no victim action such as mounting a device or opening a file.\nS:U - The potential use-after-free corrupts ath12k/mac80211 state inside the host kernel authority only and does not cross a VM, IOMMU, or sandbox boundary.\nC:H - Missing rcu_read_lock around ath12k_mac_get_ar_by_pdev_id() allows use of RCU-protected pdev/ar state after deactivation/teardown; that UAF enables heap reuse and arbitrary kernel disclosure.\nI:H - The same UAF lets the handler write MLO timestamp fields through ar->pdev after the object may be freed/reclaimed, yielding write and control-flow primitives characteristic of exploitable kernel UAFs.\nA:H - Concurrent use of a deactivated or freed ar/pdev after synchronize_rcu without a matching read-side critical section can oops/panic the kernel, so availability impact is complete even without full code execution." } ] } ], "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/dp_rx.c" ], "versions": [ { "version": "d889913205cf7ebda905b1e62c5867ed4e39f6c2", "lessThan": "d908ca431e20b0e4bfc5d911d1744910ed779bdb", "status": "affected", "versionType": "git" }, { "version": "d889913205cf7ebda905b1e62c5867ed4e39f6c2", "lessThan": "afd3425bd69610f318403084fe491e24a1357fb9", "status": "affected", "versionType": "git" }, { "version": "d889913205cf7ebda905b1e62c5867ed4e39f6c2", "lessThan": "6afc57ea315e0f660b1f870a681737bb7b71faef", "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/dp_rx.c" ], "versions": [ { "version": "6.3", "status": "affected" }, { "version": "0", "lessThan": "6.3", "status": "unaffected", "versionType": "semver" }, { "version": "6.5.13", "lessThanOrEqual": "6.5.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.3", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.7", "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": "6.3", "versionEndExcluding": "6.5.13" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.6.3" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.7" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/d908ca431e20b0e4bfc5d911d1744910ed779bdb" }, { "url": "https://git.kernel.org/stable/c/afd3425bd69610f318403084fe491e24a1357fb9" }, { "url": "https://git.kernel.org/stable/c/6afc57ea315e0f660b1f870a681737bb7b71faef" } ], "title": "wifi: ath12k: fix htt mlo-offset event locking", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T23:11:36.063Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/d908ca431e20b0e4bfc5d911d1744910ed779bdb", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/afd3425bd69610f318403084fe491e24a1357fb9", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/6afc57ea315e0f660b1f870a681737bb7b71faef", "tags": [ "x_transferred" ] } ] }, { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2023-52769", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-09-10T15:37:02.913580Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:32:55.534Z" } } ] } }