CVE-2024-47143

{"id": "CVE-2024-47143", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2025-01-11T13:15:22.007", "references": [{"url": "https://git.kernel.org/stable/c/3ccce34a5c3f5c9541108a451657ade621524b32", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/7543c3e3b9b88212fcd0aaf5cab5588797bdc7de", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8c1b4fea8d62285f5e1a8194889b39661608bd8a", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c212d91070beca0d03fef7bf988baf4ff4b3eee4", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/efe1b9bbf356357fdff0399af361133d6e3ba18e", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f2b95248a16c5186d1c658fc0aeb2f3bd95e5259", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"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", "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-667"}]}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-667"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndma-debug: fix a possible deadlock on radix_lock\n\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():\n\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\n check_sync()\n (A) radix_lock() (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()."}, {"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()."}], "lastModified": "2025-11-03T21:16:22.723", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2334FDBC-71D6-4D4A-AD2C-CF092C82C68A", "versionEndExcluding": "5.10.231"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "419FD073-1517-4FD5-8158-F94BC68A1E89", "versionEndExcluding": "5.15.174", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "09AC6122-E2A4-40FE-9D33-268A1B2EC265", "versionEndExcluding": "6.1.120", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "29A976AD-B9AB-4A95-9F08-7669F8847EB9", "versionEndExcluding": "6.6.66", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9501D045-7A94-42CA-8B03-821BE94A65B7", "versionEndExcluding": "6.12.5", "versionStartIncluding": "6.7"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}