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GHSA-WF92-393R-9P92

Vulnerability from github – Published: 2026-06-08 18:31 – Updated: 2026-06-08 18:31

Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-46284"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-08T17:16:46Z",
    "severity": null
  },
  "details": "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.",
  "id": "GHSA-wf92-393r-9p92",
  "modified": "2026-06-08T18:31:52Z",
  "published": "2026-06-08T18:31:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46284"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2774bcf714739cc6bb86f8812167bb9fbda70f6a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/357c6d084b6137ae640209c5bfd01180f985c015"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c45b354911d01565156e38d7f6bc07edb51fc34c"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

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

Vulnerability from cvelistv5 – Published: 2026-06-08 15:41 – Updated: 2026-06-14 18:06

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

Linux

References

3 references

URL	Tags
https://git.kernel.org/stable/c/2774bcf714739cc6b…
https://git.kernel.org/stable/c/357c6d084b6137ae6…
https://git.kernel.org/stable/c/c45b354911d015651…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 5b47c02967ab770aa7661c8863a21b2fd59e35ff , < 2774bcf714739cc6bb86f8812167bb9fbda70f6a (git) Affected: 5b47c02967ab770aa7661c8863a21b2fd59e35ff , < 357c6d084b6137ae640209c5bfd01180f985c015 (git) Affected: 5b47c02967ab770aa7661c8863a21b2fd59e35ff , < c45b354911d01565156e38d7f6bc07edb51fc34c (git)
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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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "mm/hugetlb.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "2774bcf714739cc6bb86f8812167bb9fbda70f6a",
              "status": "affected",
              "version": "5b47c02967ab770aa7661c8863a21b2fd59e35ff",
              "versionType": "git"
            },
            {
              "lessThan": "357c6d084b6137ae640209c5bfd01180f985c015",
              "status": "affected",
              "version": "5b47c02967ab770aa7661c8863a21b2fd59e35ff",
              "versionType": "git"
            },
            {
              "lessThan": "c45b354911d01565156e38d7f6bc07edb51fc34c",
              "status": "affected",
              "version": "5b47c02967ab770aa7661c8863a21b2fd59e35ff",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "mm/hugetlb.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.15"
            },
            {
              "lessThan": "6.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.27",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.27",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.4",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "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."
        }
      ],
      "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 \u0027=\u0027 separator",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46284",
    "datePublished": "2026-06-08T15:41:27.467Z",
    "dateReserved": "2026-05-13T15:03:33.110Z",
    "dateUpdated": "2026-06-14T18:06:18.465Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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.

Action not permitted

GHSA-WF92-393R-9P92

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

Tags

Sightings

Nomenclature