{"id":"CVE-2026-46284","state":"PUBLISHED","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.","publishedAt":"2026-06-08T15:41:27.467Z","updatedAt":"2026-06-14T18:06:18.465Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5b47c02967ab770aa7661c8863a21b2fd59e35ff","status":"affected","lessThan":"2774bcf714739cc6bb86f8812167bb9fbda70f6a","versionType":"git"},{"version":"5b47c02967ab770aa7661c8863a21b2fd59e35ff","status":"affected","lessThan":"357c6d084b6137ae640209c5bfd01180f985c015","versionType":"git"},{"version":"5b47c02967ab770aa7661c8863a21b2fd59e35ff","status":"affected","lessThan":"c45b354911d01565156e38d7f6bc07edb51fc34c","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["mm/hugetlb.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.15","versionType":"semver"},{"version":"6.18.27","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.4","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["mm/hugetlb.c"]}],"references":["https://git.kernel.org/stable/c/2774bcf714739cc6bb86f8812167bb9fbda70f6a","https://git.kernel.org/stable/c/357c6d084b6137ae640209c5bfd01180f985c015","https://git.kernel.org/stable/c/c45b354911d01565156e38d7f6bc07edb51fc34c"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/46xxx/CVE-2026-46284.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-46284","state":"PUBLISHED","datePublished":"2026-06-08T15:41:27.467Z","dateUpdated":"2026-06-14T18:06:18.465Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-13T15:03:33.110Z"},"containers":{"cna":{"title":"mm/hugetlb: fix early boot crash on parameters without '=' separator","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5b47c02967ab770aa7661c8863a21b2fd59e35ff","status":"affected","lessThan":"2774bcf714739cc6bb86f8812167bb9fbda70f6a","versionType":"git"},{"version":"5b47c02967ab770aa7661c8863a21b2fd59e35ff","status":"affected","lessThan":"357c6d084b6137ae640209c5bfd01180f985c015","versionType":"git"},{"version":"5b47c02967ab770aa7661c8863a21b2fd59e35ff","status":"affected","lessThan":"c45b354911d01565156e38d7f6bc07edb51fc34c","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["mm/hugetlb.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.15","versionType":"semver"},{"version":"6.18.27","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.4","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["mm/hugetlb.c"]}],"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"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-06-14T18:06:18.465Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.15","versionEndExcluding":"6.18.27"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.15","versionEndExcluding":"7.0.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.15","versionEndExcluding":"7.1"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}