{"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"}}]}}