CVE-2022-50185

{"id": "CVE-2022-50185", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2025-06-18T11:15:49.030", "references": [{"url": "https://git.kernel.org/stable/c/136f614931a2bb73616b292cf542da3a18daefd5", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/1f341053852be76f82610ce47a505d930512f05c", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/782e413e38dffd37cc85b08b1ccb982adb4a93ce", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8508d6d23a247c29792ce2fc0df3f3404d6a6a80", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/9faff03617afeced1c4e5daa89e79b3906374342", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/db1a9add3f90ff1c641974d5bb910c16b87af4ef", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/deb603c5928e546609c0d5798e231d0205748943", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/ea73869df6ef386fc0feeb28ff66742ca835b18f", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/radeon: fix potential buffer overflow in ni_set_mc_special_registers()\n\nThe last case label can write two buffers 'mc_reg_address[j]' and\n'mc_data[j]' with 'j' offset equal to SMC_NISLANDS_MC_REGISTER_ARRAY_SIZE\nsince there are no checks for this value in both case labels after the\nlast 'j++'.\n\nInstead of changing '>' to '>=' there, add the bounds check at the start\nof the second 'case' (the first one already has it).\n\nAlso, remove redundant last checks for 'j' index bigger than array size.\nThe expression is always false. Moreover, before or after the patch\n'table->last' can be equal to SMC_NISLANDS_MC_REGISTER_ARRAY_SIZE and it\nseems it can be a valid value.\n\nDetected using the static analysis tool - Svace."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/radeon: corrige un desbordamiento de b\u00fafer potencial en ni_set_mc_special_registers() La \u00faltima etiqueta de caso puede escribir dos b\u00faferes 'mc_reg_address[j]' y 'mc_data[j]' con el desplazamiento 'j' igual a SMC_NISLANDS_MC_REGISTER_ARRAY_SIZE ya que no hay comprobaciones para este valor en ambas etiquetas de caso despu\u00e9s del \u00faltimo 'j++'. En lugar de cambiar \">\" a \">=\" all\u00ed, agregue la comprobaci\u00f3n de los l\u00edmites al comienzo del segundo 'caso' (el primero ya lo tiene). Adem\u00e1s, elimine las \u00faltimas comprobaciones redundantes para el \u00edndice 'j' mayor que el tama\u00f1o del arreglo. La expresi\u00f3n siempre es falsa. Adem\u00e1s, antes o despu\u00e9s del parche 'table->last' puede ser igual a SMC_NISLANDS_MC_REGISTER_ARRAY_SIZE y parece que puede ser un valor v\u00e1lido. Detectado usando la herramienta de an\u00e1lisis est\u00e1tico - Svace."}], "lastModified": "2025-11-19T12:51:22.417", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "55DA0D35-C6F8-459A-8AE2-F2D47F715333", "versionEndExcluding": "4.14.291", "versionStartIncluding": "3.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6C47CDE3-B039-4AE5-B8E4-1DC820E473FF", "versionEndExcluding": "4.19.256", "versionStartIncluding": "4.15"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B1C63D19-C08C-4308-A848-B2523C9275BD", "versionEndExcluding": "5.4.211", "versionStartIncluding": "4.20"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C2BF720F-C5EE-4DE2-9BDF-CE4CFBC767F4", "versionEndExcluding": "5.10.137", "versionStartIncluding": "5.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "51861563-7F40-460F-82CD-2D3FBDAD6618", "versionEndExcluding": "5.15.61", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5B42E453-8837-49D0-A5EF-03F818A6DC11", "versionEndExcluding": "5.18.18", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A1A2A5A5-4598-4D7E-BA07-4660398D6C8F", "versionEndExcluding": "5.19.2", "versionStartIncluding": "5.19"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}