CVE-2021-47425

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Make sure to\nput the adapter after creating the client in the same manner that we do\nfor OF.\n\n[wsa: fixed title]"}, {"lang": "es", "value": " En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: i2c: acpi: corrige la fuga de recursos en la reconfiguraci\u00f3n del dispositivo a\u00f1dido acpi_i2c_find_adapter_by_handle() llama a bus_find_device() que toma una referencia en el adaptador que nunca se libera, lo que resultar\u00e1 en una fuga de recuento de referencias y haga que el adaptador no sea extra\u00edble. Aseg\u00farese de colocar el adaptador despu\u00e9s de crear el cliente de la misma manera que lo hacemos para OF. [wsa: t\u00edtulo fijo]"}], "id": "CVE-2021-47425", "lastModified": "2026-06-17T04:17:26.560", "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"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2021-47425", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-05-21T17:32:39.731015Z", "version": "2.0.3"}}]}, "published": "2024-05-21T15:15:27.930", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3d9d458a8aaafa47268ea4f1b4114a9f12927989"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/60bacf259e8c2eb2324f3e13275200baaee9494b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6558b646ce1c2a872fe1c2c7cb116f05a2c1950f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/90f1077c9184ec2ae9989e4642f211263f301694"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b8090a84d7758b929d348bafbd86bb7a10c5fb63"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f86de018fd7a24ee07372d55ffa7824f0c674a95"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3d9d458a8aaafa47268ea4f1b4114a9f12927989"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/60bacf259e8c2eb2324f3e13275200baaee9494b"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6558b646ce1c2a872fe1c2c7cb116f05a2c1950f"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/90f1077c9184ec2ae9989e4642f211263f301694"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b8090a84d7758b929d348bafbd86bb7a10c5fb63"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f86de018fd7a24ee07372d55ffa7824f0c674a95"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: i2c: acpi: fix resource leak in reconfiguration device addition", "id": "2282307", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2282307"}, "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-402", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ni2c: acpi: fix resource leak in reconfiguration device addition\nacpi_i2c_find_adapter_by_handle() calls bus_find_device() which takes a\nreference on the adapter which is never released which will result in a\nreference count leak and render the adapter unremovable. Make sure to\nput the adapter after creating the client in the same manner that we do\nfor OF.\n[wsa: fixed title]"], "name": "CVE-2021-47425", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "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-2021-47425\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-47425\nhttps://lore.kernel.org/linux-cve-announce/2024052156-CVE-2021-47425-8e9f@gregkh/T"], "threat_severity": "Low"}

{"created": "2025-07-12T22:45:18.061422+00:00", "updated": "2025-07-12T22:45:18.061479+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}