CVE-2023-52769

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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\u2011Fi 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\u2011Fi 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"}}]}}

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Marque el c\u00f3digo en cuesti\u00f3n como una secci\u00f3n cr\u00edtica del lado de lectura de RCU para evitar posibles problemas de use after free. Compilaci\u00f3n probada \u00fanicamente."}], "id": "CVE-2023-52769", "lastModified": "2026-08-04T10:18:40.823", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"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": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-52769", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-10T15:37:02.913580Z", "version": "2.0.3"}}]}, "published": "2024-05-21T16:15:16.140", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6afc57ea315e0f660b1f870a681737bb7b71faef"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/afd3425bd69610f318403084fe491e24a1357fb9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d908ca431e20b0e4bfc5d911d1744910ed779bdb"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6afc57ea315e0f660b1f870a681737bb7b71faef"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/afd3425bd69610f318403084fe491e24a1357fb9"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d908ca431e20b0e4bfc5d911d1744910ed779bdb"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: wifi: ath12k: fix htt mlo-offset event locking", "id": "2282750", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2282750"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-483", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nwifi: ath12k: fix htt mlo-offset event locking\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.\nMark the code in question as an RCU read-side critical section to avoid\nany potential use-after-free issues.\nCompile tested only."], "name": "CVE-2023-52769", "package_state": [{"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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-05-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-52769\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-52769\nhttps://lore.kernel.org/linux-cve-announce/2024052150-CVE-2023-52769-8bac@gregkh/T"], "threat_severity": "Low"}

{}