CVE-2024-47143

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(W) dma_entry_hash\ndma_entry_free()\n(W) radix_lock()\n // CPU2's one\n (W) rq_lock()\n\nCPU1 situation can happen when it extending radix tree and\nit tries to wake up kswapd via wake_all_kswapd().\n\nCPU2 situation can happen while perf_event_task_sched_out()\n(i.e. dma sync operation is called while deleting perf_event using\n etm and etr tmc which are Arm Coresight hwtracing driver backends).\n\nTo remove this possible situation, call dma_entry_free() after\nput_hash_bucket() in check_unmap()."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/dma/debug.c"], "versions": [{"version": "0abdd7a81b7e3fd781d7fabcca49501852bba17e", "lessThan": "3ccce34a5c3f5c9541108a451657ade621524b32", "status": "affected", "versionType": "git"}, {"version": "0abdd7a81b7e3fd781d7fabcca49501852bba17e", "lessThan": "efe1b9bbf356357fdff0399af361133d6e3ba18e", "status": 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hwtracing driver backends).\n\nTo remove this possible situation, call dma_entry_free() after\nput_hash_bucket() in check_unmap()."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.231", "versionStartIncluding": "3.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.174", "versionStartIncluding": "3.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.120", "versionStartIncluding": "3.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.66", "versionStartIncluding": "3.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.5", "versionStartIncluding": "3.14"}, {"criteria": 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via wake_all_kswapd().\n\nCPU2 situation can happen while perf_event_task_sched_out()\n(i.e. dma sync operation is called while deleting perf_event using\n etm and etr tmc which are Arm Coresight hwtracing driver backends).\n\nTo remove this possible situation, call dma_entry_free() after\nput_hash_bucket() in check_unmap()."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: dma-debug: corrige un posible bloqueo en radix_lock radix_lock() no se debe mantener mientras se mantiene dma_hash_entry[idx].lock de lo contrario, existe un posible escenario de bloqueo cuando se llama a la API de depuraci\u00f3n de dma manteniendo rq_lock(): CPU0 CPU1 CPU2 dma_free_attrs() check_unmap() add_dma_entry() __schedule() //out (A) rq_lock() get_hash_bucket() (A) dma_entry_hash check_sync() (A) radix_lock() (W) dma_entry_hash dma_entry_free() (W) radix_lock() // El \u00fanico rq_lock() de CPU2 (W) La situaci\u00f3n de CPU1 puede ocurrir cuando extiende el \u00e1rbol de radix e intenta despertar a kswapd a trav\u00e9s de wake_all_kswapd(). La situaci\u00f3n de CPU2 puede ocurrir mientras se ejecuta perf_event_task_sched_out() (es decir, se llama a la operaci\u00f3n de sincronizaci\u00f3n de dma mientras se elimina perf_event usando etm y etr tmc, que son backends del controlador hwtracing de Arm Coresight). Para eliminar esta posible situaci\u00f3n, llame a dma_entry_free() despu\u00e9s de put_hash_bucket() en check_unmap()."}], "id": "CVE-2024-47143", "lastModified": "2026-06-17T07:56:37.300", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-47143", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-10-01T19:55:51.622689Z", "version": "2.0.3"}}]}, "published": "2025-01-11T13:15:22.007", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3ccce34a5c3f5c9541108a451657ade621524b32"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7543c3e3b9b88212fcd0aaf5cab5588797bdc7de"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8c1b4fea8d62285f5e1a8194889b39661608bd8a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c212d91070beca0d03fef7bf988baf4ff4b3eee4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/efe1b9bbf356357fdff0399af361133d6e3ba18e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f2b95248a16c5186d1c658fc0aeb2f3bd95e5259"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-667"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-667"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: dma-debug: fix a possible deadlock on radix_lock", "id": "2337129", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2337129"}, "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-667", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndma-debug: fix a possible deadlock on radix_lock\nradix_lock() shouldn't be held while holding dma_hash_entry[idx].lock\notherwise, there's a possible deadlock scenario when\ndma debug API is called holding rq_lock():\nCPU0 CPU1 CPU2\ndma_free_attrs()\ncheck_unmap() add_dma_entry() __schedule() //out\n(A) rq_lock()\nget_hash_bucket()\n(A) dma_entry_hash\ncheck_sync()\n(A) radix_lock() (W) dma_entry_hash\ndma_entry_free()\n(W) radix_lock()\n// CPU2's one\n(W) rq_lock()\nCPU1 situation can happen when it extending radix tree and\nit tries to wake up kswapd via wake_all_kswapd().\nCPU2 situation can happen while perf_event_task_sched_out()\n(i.e. dma sync operation is called while deleting perf_event using\netm and etr tmc which are Arm Coresight hwtracing driver backends).\nTo remove this possible situation, call dma_entry_free() after\nput_hash_bucket() in check_unmap()."], "name": "CVE-2024-47143", "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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-01-11T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-47143\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-47143\nhttps://lore.kernel.org/linux-cve-announce/2025011119-CVE-2024-47143-37ba@gregkh/T"], "threat_severity": "Low"}

{}