{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-57881", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-01-11T14:45:42.023Z", "datePublished": "2025-01-11T15:10:43.786Z", "dateUpdated": "2025-01-11T15:10:43.786Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-01-11T15:10:43.786Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/page_alloc: don't call pfn_to_page() on possibly non-existent PFN in split_large_buddy()\n\nIn split_large_buddy(), we might call pfn_to_page() on a PFN that might\nnot exist. In corner cases, such as when freeing the highest pageblock in\nthe last memory section, this could result with CONFIG_SPARSEMEM &&\n!CONFIG_SPARSEMEM_EXTREME in __pfn_to_section() returning NULL and and\n__section_mem_map_addr() dereferencing that NULL pointer.\n\nLet's fix it, and avoid doing a pfn_to_page() call for the first\niteration, where we already have the page.\n\nSo far this was found by code inspection, but let's just CC stable as the\nfix is easy."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["mm/page_alloc.c"], "versions": [{"version": "fd919a85cd55be5d00a6a7372071f44c8eafb825", "lessThan": "4234ca9884bcae9e48ed38652d91696ad5cd591d", "status": "affected", "versionType": "git"}, {"version": "fd919a85cd55be5d00a6a7372071f44c8eafb825", "lessThan": "faeec8e23c10bd30e8aa759a2eb3018dae00f924", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["mm/page_alloc.c"], "versions": [{"version": "6.10", "status": "affected"}, {"version": "0", "lessThan": "6.10", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.7", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.13-rc4", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/4234ca9884bcae9e48ed38652d91696ad5cd591d"}, {"url": "https://git.kernel.org/stable/c/faeec8e23c10bd30e8aa759a2eb3018dae00f924"}], "title": "mm/page_alloc: don't call pfn_to_page() on possibly non-existent PFN in split_large_buddy()", "x_generator": {"engine": "bippy-5f407fcff5a0"}}}}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "DCCD8BD3-5C46-4941-B3DF-2AA3E532D3D6", "versionEndExcluding": "6.12.7", "versionStartIncluding": "6.10", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:*", "matchCriteriaId": "62567B3C-6CEE-46D0-BC2E-B3717FBF7D13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc2:*:*:*:*:*:*", "matchCriteriaId": "5A073481-106D-4B15-B4C7-FB0213B8E1D4", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc3:*:*:*:*:*:*", "matchCriteriaId": "DE491969-75AE-4A6B-9A58-8FC5AF98798F", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/page_alloc: don't call pfn_to_page() on possibly non-existent PFN in split_large_buddy()\n\nIn split_large_buddy(), we might call pfn_to_page() on a PFN that might\nnot exist. In corner cases, such as when freeing the highest pageblock in\nthe last memory section, this could result with CONFIG_SPARSEMEM &&\n!CONFIG_SPARSEMEM_EXTREME in __pfn_to_section() returning NULL and and\n__section_mem_map_addr() dereferencing that NULL pointer.\n\nLet's fix it, and avoid doing a pfn_to_page() call for the first\niteration, where we already have the page.\n\nSo far this was found by code inspection, but let's just CC stable as the\nfix is easy."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mm/page_alloc: no llamar a pfn_to_page() en PFN posiblemente inexistente en split_large_buddy() En split_large_buddy(), podr\u00edamos llamar a pfn_to_page() en un PFN que podr\u00eda no existir. En casos especiales, como al liberar el bloque de p\u00e1gina m\u00e1s alto en la \u00faltima secci\u00f3n de memoria, esto podr\u00eda resultar en que CONFIG_SPARSEMEM && !CONFIG_SPARSEMEM_EXTREME en __pfn_to_section() devuelva NULL y __section_mem_map_addr() desreferenciando ese puntero NULL. Vamos a solucionarlo y evitar hacer una llamada a pfn_to_page() para la primera iteraci\u00f3n, donde ya tenemos la p\u00e1gina. Hasta ahora esto se encontr\u00f3 mediante inspecci\u00f3n de c\u00f3digo, pero simplemente controlemos CC estable ya que la soluci\u00f3n es f\u00e1cil."}], "id": "CVE-2024-57881", "lastModified": "2025-01-16T15:20:10.900", "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"}]}, "published": "2025-01-11T16:15:24.307", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4234ca9884bcae9e48ed38652d91696ad5cd591d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/faeec8e23c10bd30e8aa759a2eb3018dae00f924"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: mm/page_alloc: don't call pfn_to_page() on possibly non-existent PFN in split_large_buddy()", "id": "2337151", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2337151"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmm/page_alloc: don't call pfn_to_page() on possibly non-existent PFN in split_large_buddy()\nIn split_large_buddy(), we might call pfn_to_page() on a PFN that might\nnot exist. In corner cases, such as when freeing the highest pageblock in\nthe last memory section, this could result with CONFIG_SPARSEMEM &&\n!CONFIG_SPARSEMEM_EXTREME in __pfn_to_section() returning NULL and and\n__section_mem_map_addr() dereferencing that NULL pointer.\nLet's fix it, and avoid doing a pfn_to_page() call for the first\niteration, where we already have the page.\nSo far this was found by code inspection, but let's just CC stable as the\nfix is easy."], "name": "CVE-2024-57881", "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": "2025-01-11T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-57881\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-57881\nhttps://lore.kernel.org/linux-cve-announce/2025011146-CVE-2024-57881-7516@gregkh/T"], "threat_severity": "Low"}