CVE-2022-49905

{"id": "CVE-2022-49905", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "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": "2025-05-01T15:16:15.593", "references": [{"url": "https://git.kernel.org/stable/c/61defd6450a9ef4a1487090449999b0fd83518ef", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/62ff373da2534534c55debe6c724c7fe14adb97f", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c97daf836f7caf81d3144b8cd2b2a51f9bc3bd09", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-401"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: Fix possible leaked pernet namespace in smc_init()\n\nIn smc_init(), register_pernet_subsys(&smc_net_stat_ops) is called\nwithout any error handling.\nIf it fails, registering of &smc_net_ops won't be reverted.\nAnd if smc_nl_init() fails, &smc_net_stat_ops itself won't be reverted.\n\nThis leaves wild ops in subsystem linkedlist and when another module\ntries to call register_pernet_operations() it triggers page fault:\n\nBUG: unable to handle page fault for address: fffffbfff81b964c\nRIP: 0010:register_pernet_operations+0x1b9/0x5f0\nCall Trace:\n <TASK>\n register_pernet_subsys+0x29/0x40\n ebtables_init+0x58/0x1000 [ebtables]\n ..."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/smc: Se corrige una posible fuga de espacio de nombres pernet en smc_init(). En smc_init(), se llama a register_pernet_subsys(&amp;smc_net_stat_ops) sin gestionar errores. Si falla, el registro de &amp;smc_net_ops no se revertir\u00e1. Y si smc_nl_init() falla, &amp;smc_net_stat_ops no se revertir\u00e1. Esto deja operaciones salvajes en la lista enlazada del subsistema y cuando otro m\u00f3dulo intenta llamar a register_pernet_operations() desencadena un error de p\u00e1gina: ERROR: no se puede manejar el error de p\u00e1gina para la direcci\u00f3n: fffffbfff81b964c RIP: 0010:register_pernet_operations+0x1b9/0x5f0 Rastreo de llamada: register_pernet_subsys+0x29/0x40 ebtables_init+0x58/0x1000 [ebtables] ... "}], "lastModified": "2025-11-11T01:42:17.617", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4A83CCE5-725E-495E-A0C2-C673EA7B658A", "versionEndExcluding": "5.15.78", "versionStartIncluding": "5.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EC9A754E-625D-42F3-87A7-960D643E2867", "versionEndExcluding": "6.0.8", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E7E331DA-1FB0-4DEC-91AC-7DA69D461C11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "17F0B248-42CF-4AE6-A469-BB1BAE7F4705"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E2422816-0C14-4B5E-A1E6-A9D776E5C49B"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}