CVE-2024-56768

{"id": "CVE-2024-56768", "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": "2025-01-06T17:15:43.800", "references": [{"url": "https://git.kernel.org/stable/c/23579010cf0a12476e96a5f1acdf78a9c5843657", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f4ab7d74247b0150547cf909b3f6f24ee85183df", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix bpf_get_smp_processor_id() on !CONFIG_SMP\n\nOn x86-64 calling bpf_get_smp_processor_id() in a kernel with CONFIG_SMP\ndisabled can trigger the following bug, as pcpu_hot is unavailable:\n\n [ 8.471774] BUG: unable to handle page fault for address: 00000000936a290c\n [ 8.471849] #PF: supervisor read access in kernel mode\n [ 8.471881] #PF: error_code(0x0000) - not-present page\n\nFix by inlining a return 0 in the !CONFIG_SMP case."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf: Corregir bpf_get_smp_processor_id() en !CONFIG_SMP En x86-64, llamar a bpf_get_smp_processor_id() en un kernel con CONFIG_SMP deshabilitado puede provocar el siguiente error, ya que pcpu_hot no est\u00e1 disponible: [ 8.471774] ERROR: no se puede gestionar el error de p\u00e1gina para la direcci\u00f3n: 00000000936a290c [ 8.471849] #PF: acceso de lectura de supervisor en modo kernel [ 8.471881] #PF: error_code(0x0000) - p\u00e1gina no presente Corregir incrustando un retorno 0 en el caso de !CONFIG_SMP."}], "lastModified": "2025-01-07T22:50:43.207", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BCD9BDC5-9E29-45B5-92A6-8752B9E03902", "versionEndExcluding": "6.12.8", "versionStartIncluding": "6.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "62567B3C-6CEE-46D0-BC2E-B3717FBF7D13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5A073481-106D-4B15-B4C7-FB0213B8E1D4"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DE491969-75AE-4A6B-9A58-8FC5AF98798F"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}