CVE-2022-49991

{"id": "CVE-2022-49991", "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": "2025-06-18T11:15:26.753", "references": [{"url": "https://git.kernel.org/stable/c/3ada1b3e58db255a14ec73a59d7913e84dc5a8a4", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/ab74ef708dc51df7cf2b8a890b9c6990fac5c0c6", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/da60ddd80d09f8371fbba1a238a4b318d13ba698", "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\nmm/hugetlb: avoid corrupting page->mapping in hugetlb_mcopy_atomic_pte\n\nIn MCOPY_ATOMIC_CONTINUE case with a non-shared VMA, pages in the page\ncache are installed in the ptes. But hugepage_add_new_anon_rmap is called\nfor them mistakenly because they're not vm_shared. This will corrupt the\npage->mapping used by page cache code."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mm/hugetlb: evitar la corrupci\u00f3n del mapeo de p\u00e1ginas en hugetlb_mcopy_atomic_pte. En el caso de MCOPY_ATOMIC_CONTINUE con un VMA no compartido, las p\u00e1ginas de la cach\u00e9 de p\u00e1ginas se instalan en los ptes. Sin embargo, se llama a hugepage_add_new_anon_rmap por error porque no son vm_shared. Esto corromper\u00e1 el mapeo de p\u00e1ginas utilizado por el c\u00f3digo de la cach\u00e9 de p\u00e1ginas."}], "lastModified": "2025-11-14T18:12:31.067", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "70590EA7-AAB6-4DA2-AEF6-5E5E596B89DA", "versionEndExcluding": "5.15.65", "versionStartIncluding": "5.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "89E99903-E16D-475D-954B-2BAC46C98262", "versionEndExcluding": "5.19.6", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E8BD11A3-8643-49B6-BADE-5029A0117325"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5F0AD220-F6A9-4012-8636-155F1B841FAD"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}