CVE-2025-39750

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Proceed to\nath12k_dp_rx_peer_tid_delete() starting from unallocated tid,\nwhich might leads to freeing unallocated TID and cause potential\ncrash or out-of-bounds access.\n\nHence, fix by correctly decrementing tid before cleanup to match only\nthe successfully allocated TIDs.\n\nAlso, remove tid-- from failure case of ath12k_dp_rx_peer_frag_setup(),\nas decrementing the tid before cleanup in loop will take care of this.\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 is entered from the ath12k WiFi driver's mac80211 `sta_state` callback when a peer is added in response to received 802.11 management frames, so the attacker must be within radio range of the AP/STA, i.e. on the same wireless segment.\nAC:L - The attacker controls both sides of the trigger \u2014 repeatedly transmitting auth/assoc frames from spoofed MACs (each allocating 17 GFP_ATOMIC REO queue descriptors) and immediately deauthing to race peer teardown against the 17-TID setup loop \u2014 so the `ath12k_dp_rx_peer_frag_setup()` failure needed to reach `rx_tid[17]` is attacker-driven rather than beyond their influence.\nPR:N - In AP mode mac80211/hostapd add the station (NOTEXIST\u2192NONE) upon an 802.11 Authentication frame, before any credentials, PSK, or 802.1X exchange is verified, so the attacker needs no account or key on the target.\nUI:N - Exploitation requires only that the attacker transmit 802.11 frames to a listening ath12k AP; no action by a local user or administrator is needed.\nS:U - The out-of-bounds read/write and invalid free corrupt kernel heap memory managed by the same kernel security authority; there is no crossing into a hypervisor, guest, or sandbox boundary.\nC:H - `ath12k_dp_reo_cmd_send()` performs a 128-byte `memcpy` from `&peer->rx_tid[17]`, copying out-of-bounds heap contents (including kernel pointers and DMA addresses) into a cached REO command element, and the OOB-read address is also handed to hardware \u2014 an unbounded adjacent-memory read.\nI:H - The bug yields out-of-bounds writes past `peer->rx_tid[]` (`vaddr = NULL`, `active = false`, plus an 8-byte write one entry past the REO LUT), a `kfree()` of a pointer synthesized from out-of-bounds bytes (arbitrary-free primitive), and a REO hardware queue-descriptor write at an attacker-influenced physical address \u2014 all usable for control-flow-relevant heap corruption.\nA:H - Freeing a wild pointer and `dma_unmap_single()` on a bogus DMA address reliably produce slab corruption, IOMMU faults, or an oops/panic, taking down the kernel and the WiFi interface."}]}], "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.c"], "versions": [{"version": "d889913205cf7ebda905b1e62c5867ed4e39f6c2", "lessThan": "30cad87978057516c93467516bc481a3eacfd66a", "status": "affected", "versionType": "git"}, {"version": "d889913205cf7ebda905b1e62c5867ed4e39f6c2", "lessThan": "2ef17d1476ab26bce89764e2f16833d7f52acc38", "status": "affected", "versionType": "git"}, {"version": "d889913205cf7ebda905b1e62c5867ed4e39f6c2", "lessThan": "907c630e58af9e86e215f3951c7b287bd86d0f15", "status": "affected", "versionType": "git"}, {"version": "d889913205cf7ebda905b1e62c5867ed4e39f6c2", "lessThan": "6301fe4f209165334d251a1c6da8ae47f93cb32c", "status": "affected", "versionType": "git"}, {"version": "d889913205cf7ebda905b1e62c5867ed4e39f6c2", "lessThan": "4a2bf707270f897ab8077baee8ed5842a5321686", "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.c"], "versions": [{"version": "6.3", "status": "affected"}, {"version": "0", "lessThan": "6.3", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.103", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.43", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.15.11", "lessThanOrEqual": "6.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.16.2", "lessThanOrEqual": "6.16.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.17", "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": "6.6.103"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.12.43"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.15.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.16.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.17"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/30cad87978057516c93467516bc481a3eacfd66a"}, {"url": "https://git.kernel.org/stable/c/2ef17d1476ab26bce89764e2f16833d7f52acc38"}, {"url": "https://git.kernel.org/stable/c/907c630e58af9e86e215f3951c7b287bd86d0f15"}, {"url": "https://git.kernel.org/stable/c/6301fe4f209165334d251a1c6da8ae47f93cb32c"}, {"url": "https://git.kernel.org/stable/c/4a2bf707270f897ab8077baee8ed5842a5321686"}], "title": "wifi: ath12k: Correct tid cleanup when tid setup fails", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-39750", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-15T21:53:56.370422Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-15T22:02:31.513Z"}}]}}

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no action by a local user or administrator is needed.\nS:U - The out-of-bounds read/write and invalid free corrupt kernel heap memory managed by the same kernel security authority; there is no crossing into a hypervisor, guest, or sandbox boundary.\nC:H - `ath12k_dp_reo_cmd_send()` performs a 128-byte `memcpy` from `&peer->rx_tid[17]`, copying out-of-bounds heap contents (including kernel pointers and DMA addresses) into a cached REO command element, and the OOB-read address is also handed to hardware \u2014 an unbounded adjacent-memory read.\nI:H - The bug yields out-of-bounds writes past `peer->rx_tid[]` (`vaddr = NULL`, `active = false`, plus an 8-byte write one entry past the REO LUT), a `kfree()` of a pointer synthesized from out-of-bounds bytes (arbitrary-free primitive), and a REO hardware queue-descriptor write at an attacker-influenced physical address \u2014 all usable for control-flow-relevant heap corruption.\nA:H - Freeing a wild pointer and `dma_unmap_single()` on a bogus DMA address reliably produce slab corruption, IOMMU faults, or an oops/panic, taking down the kernel and the WiFi interface."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "d889913205cf7ebda905b1e62c5867ed4e39f6c2", "lessThan": "30cad87978057516c93467516bc481a3eacfd66a", "versionType": "git"}, {"status": "affected", "version": "d889913205cf7ebda905b1e62c5867ed4e39f6c2", "lessThan": "2ef17d1476ab26bce89764e2f16833d7f52acc38", "versionType": "git"}, {"status": "affected", "version": "d889913205cf7ebda905b1e62c5867ed4e39f6c2", "lessThan": "907c630e58af9e86e215f3951c7b287bd86d0f15", "versionType": "git"}, {"status": "affected", "version": "d889913205cf7ebda905b1e62c5867ed4e39f6c2", "lessThan": "6301fe4f209165334d251a1c6da8ae47f93cb32c", "versionType": "git"}, {"status": "affected", "version": "d889913205cf7ebda905b1e62c5867ed4e39f6c2", "lessThan": "4a2bf707270f897ab8077baee8ed5842a5321686", "versionType": "git"}], "programFiles": ["drivers/net/wireless/ath/ath12k/dp.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.3"}, {"status": "unaffected", "version": "0", "lessThan": "6.3", "versionType": "semver"}, {"status": "unaffected", "version": "6.6.103", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.43", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.15.11", "versionType": "semver", "lessThanOrEqual": "6.15.*"}, {"status": "unaffected", "version": "6.16.2", "versionType": "semver", "lessThanOrEqual": "6.16.*"}, {"status": "unaffected", "version": "6.17", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/net/wireless/ath/ath12k/dp.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/30cad87978057516c93467516bc481a3eacfd66a"}, {"url": "https://git.kernel.org/stable/c/2ef17d1476ab26bce89764e2f16833d7f52acc38"}, {"url": "https://git.kernel.org/stable/c/907c630e58af9e86e215f3951c7b287bd86d0f15"}, {"url": "https://git.kernel.org/stable/c/6301fe4f209165334d251a1c6da8ae47f93cb32c"}, {"url": "https://git.kernel.org/stable/c/4a2bf707270f897ab8077baee8ed5842a5321686"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath12k: Correct tid cleanup when tid setup fails\n\nCurrently, if any error occurs during ath12k_dp_rx_peer_tid_setup(),\nthe tid value is already incremented, even though the corresponding\nTID is not actually allocated. 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Proceed to\nath12k_dp_rx_peer_tid_delete() starting from unallocated tid,\nwhich might leads to freeing unallocated TID and cause potential\ncrash or out-of-bounds access.\n\nHence, fix by correctly decrementing tid before cleanup to match only\nthe successfully allocated TIDs.\n\nAlso, remove tid-- from failure case of ath12k_dp_rx_peer_frag_setup(),\nas decrementing the tid before cleanup in loop will take care of this.\n\nCompile tested only."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nwifi: ath12k: Limpieza correcta de tid cuando la configuraci\u00f3n de tid falla\n\nActualmente, si ocurre alg\u00fan error durante ath12k_dp_rx_peer_tid_setup(), el valor de tid ya est\u00e1 incrementado, a pesar de que el TID correspondiente no est\u00e1 realmente asignado. Se procede a ath12k_dp_rx_peer_tid_delete() comenzando desde un tid no asignado, lo que podr\u00eda llevar a liberar un TID no asignado y causar un posible fallo o acceso fuera de l\u00edmites.\n\nPor lo tanto, se corrige decrementando correctamente tid antes de la limpieza para que coincida solo con los TIDs asignados con \u00e9xito.\n\nAdem\u00e1s, se elimina tid-- del caso de fallo de ath12k_dp_rx_peer_frag_setup(), ya que decrementar el tid antes de la limpieza en el bucle se encargar\u00e1 de esto.\n\nSolo probado en compilaci\u00f3n."}], "id": "CVE-2025-39750", "lastModified": "2026-10-19T21:10:00.160", "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": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-39750", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-15T21:53:56.370422Z", "version": "2.0.3"}}]}, "published": "2025-09-11T17:15:38.590", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2ef17d1476ab26bce89764e2f16833d7f52acc38"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/30cad87978057516c93467516bc481a3eacfd66a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4a2bf707270f897ab8077baee8ed5842a5321686"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6301fe4f209165334d251a1c6da8ae47f93cb32c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/907c630e58af9e86e215f3951c7b287bd86d0f15"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: wifi: ath12k: Correct tid cleanup when tid setup fails", "id": "2394614", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2394614"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2025-39750", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-09-11T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-39750\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-39750\nhttps://lore.kernel.org/linux-cve-announce/2025091142-CVE-2025-39750-849e@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-09-12T08:02:35.850912+00:00", "updated": "2025-09-12T08:02:35.850998+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}