CVE-2026-46284 (GCVE-0-2026-46284)

Vulnerability from cvelistv5 – Published: 2026-06-08 15:41 – Updated: 2026-06-14 18:06
VLAI
Title
mm/hugetlb: fix early boot crash on parameters without '=' separator
Summary
In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix early boot crash on parameters without '=' separator If hugepages, hugepagesz, or default_hugepagesz are specified on the kernel command line without the '=' separator, early parameter parsing passes NULL to hugetlb_add_param(), which dereferences it in strlen() and can crash the system during early boot. Reject NULL values in hugetlb_add_param() and return -EINVAL instead.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 5b47c02967ab770aa7661c8863a21b2fd59e35ff , < 2774bcf714739cc6bb86f8812167bb9fbda70f6a (git)
Affected: 5b47c02967ab770aa7661c8863a21b2fd59e35ff , < 357c6d084b6137ae640209c5bfd01180f985c015 (git)
Affected: 5b47c02967ab770aa7661c8863a21b2fd59e35ff , < c45b354911d01565156e38d7f6bc07edb51fc34c (git)
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Linux Linux Affected: 6.15
Unaffected: 0 , < 6.15 (semver)
Unaffected: 6.18.27 , ≤ 6.18.* (semver)
Unaffected: 7.0.4 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/hugetlb: fix early boot crash on parameters without \u0027=\u0027 separator\n\nIf hugepages, hugepagesz, or default_hugepagesz are specified on the\nkernel command line without the \u0027=\u0027 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."
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.