{"api_version":"1","generated_at":"2026-07-24T23:44:13+00:00","cve":"CVE-2026-46284","urls":{"html":"https://cve.report/CVE-2026-46284","api":"https://cve.report/api/cve/CVE-2026-46284.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-46284","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-46284"},"summary":{"title":"mm/hugetlb: fix early boot crash on parameters without '=' separator","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/hugetlb: fix early boot crash on parameters without '=' separator\n\nIf hugepages, hugepagesz, or default_hugepagesz are specified on the\nkernel command line without the '=' separator, early parameter parsing\npasses NULL to hugetlb_add_param(), which dereferences it in strlen() and\ncan crash the system during early boot.\n\nReject NULL values in hugetlb_add_param() and return -EINVAL instead.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-06-08 17:16:46","updated_at":"2026-07-23 08:10:00"},"problem_types":["CWE-476"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"5.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}}],"references":[{"url":"https://git.kernel.org/stable/c/357c6d084b6137ae640209c5bfd01180f985c015","name":"https://git.kernel.org/stable/c/357c6d084b6137ae640209c5bfd01180f985c015","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2774bcf714739cc6bb86f8812167bb9fbda70f6a","name":"https://git.kernel.org/stable/c/2774bcf714739cc6bb86f8812167bb9fbda70f6a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c45b354911d01565156e38d7f6bc07edb51fc34c","name":"https://git.kernel.org/stable/c/c45b354911d01565156e38d7f6bc07edb51fc34c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-46284","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46284","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5b47c02967ab770aa7661c8863a21b2fd59e35ff 2774bcf714739cc6bb86f8812167bb9fbda70f6a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5b47c02967ab770aa7661c8863a21b2fd59e35ff 357c6d084b6137ae640209c5bfd01180f985c015 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5b47c02967ab770aa7661c8863a21b2fd59e35ff c45b354911d01565156e38d7f6bc07edb51fc34c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.15","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.15 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the Linux kernel, the following vulnerability has been resolved:\n\nmm/hugetlb: fix early boot crash on parameters without '=' separator\n\nIf hugepages, hugepagesz, or default_hugepagesz are specified on the\nkernel command line without the '=' separator, early parameter parsing\npasses NULL to hugetlb_add_param(), which dereferences it in strlen() and\ncan crash the system during early boot.\n\nReject NULL values in hugetlb_add_param() and return -EINVAL instead."}],"providerMetadata":{"dateUpdated":"2026-06-14T18:06:18.465Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/2774bcf714739cc6bb86f8812167bb9fbda70f6a"},{"url":"https://git.kernel.org/stable/c/357c6d084b6137ae640209c5bfd01180f985c015"},{"url":"https://git.kernel.org/stable/c/c45b354911d01565156e38d7f6bc07edb51fc34c"}],"title":"mm/hugetlb: fix early boot crash on parameters without '=' 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08:10:00","problem_types":["CWE-476"],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.15","versionEndExcluding":"6.18.27","matchCriteriaId":"76E31C9E-B52E-4B89-BAA5-71C2BF01ABC3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"7.0.4","matchCriteriaId":"CDB78D6D-22C3-4154-B0D0-94AF1CE5C2E3"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"46284","Ordinal":"1","Title":"mm/hugetlb: fix early boot crash on parameters without '=' separ","CVE":"CVE-2026-46284","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"46284","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/hugetlb: fix early boot crash on parameters without '=' separator\n\nIf hugepages, hugepagesz, or default_hugepagesz are specified on the\nkernel command line without the '=' separator, early parameter parsing\npasses NULL to hugetlb_add_param(), which dereferences it in strlen() and\ncan crash the system during early boot.\n\nReject NULL values in hugetlb_add_param() and return -EINVAL instead.","Type":"Description","Title":"mm/hugetlb: fix early boot crash on parameters without '=' separ"}]}}}