CVE-2026-90283 (GCVE-0-2026-90283)
Vulnerability from cvelistv5
Published
2026-09-17 16:08
Modified
2026-10-19 09:01
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: hugetlbfs: release subpool on fill_super failure hugetlbfs_fill_super() allocates a hugepage subpool when size or min_size mount options are specified. hugepage_new_subpool() may also reserve huge pages for min_size. If root dentry creation fails after the subpool is created, the failure path frees the subpool with kfree(). This bypasses hugepage_put_subpool() and can leave min_size reservations charged. Use hugepage_put_subpool() on the failure path, matching the normal put_super path.
References
Impacted products
Vendor Product Version
Linux Linux Version: 7ca02d0ae586fe7df59632966a64f3f1a756ef05
Version: 7ca02d0ae586fe7df59632966a64f3f1a756ef05
Version: 7ca02d0ae586fe7df59632966a64f3f1a756ef05
Version: 7ca02d0ae586fe7df59632966a64f3f1a756ef05
Version: 7ca02d0ae586fe7df59632966a64f3f1a756ef05
Version: 7ca02d0ae586fe7df59632966a64f3f1a756ef05
Version: 7ca02d0ae586fe7df59632966a64f3f1a756ef05
Version: 7ca02d0ae586fe7df59632966a64f3f1a756ef05
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{
  "containers": {
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          "programFiles": [
            "fs/hugetlbfs/inode.c"
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          "versions": [
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              "version": "0",
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              "version": "7.3",
              "versionType": "original_commit_for_fix"
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      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
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              ],
              "negate": false,
              "operator": "OR"
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        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhugetlbfs: release subpool on fill_super failure\n\nhugetlbfs_fill_super() allocates a hugepage subpool when size or min_size\nmount options are specified.  hugepage_new_subpool() may also reserve huge\npages for min_size.\n\nIf root dentry creation fails after the subpool is created, the failure\npath frees the subpool with kfree().  This bypasses hugepage_put_subpool()\nand can leave min_size reservations charged.\n\nUse hugepage_put_subpool() on the failure path, matching the normal\nput_super path."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:01:01.727Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f2d6cea221d777fab3ba18f805ba4c17c90e0b8b"
        },
        {
          "url": "https://git.kernel.org/stable/c/91c4f3a87862fd86594d5945512decbfa0b1d13d"
        },
        {
          "url": "https://git.kernel.org/stable/c/04f0354a4abf6793aa5b3f32e2b019ab206f344d"
        },
        {
          "url": "https://git.kernel.org/stable/c/5b7fc7a1ce2a5f2cd8ed80a883157c7108074e0b"
        },
        {
          "url": "https://git.kernel.org/stable/c/1d8be4ee81e73fcc52e58f47842d9a2277cfeaaa"
        },
        {
          "url": "https://git.kernel.org/stable/c/dfe848cadfde4179a0691da34f4bed36ff7185b5"
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        {
          "url": "https://git.kernel.org/stable/c/dc2bd517ac0bce4ec7498644bd16b6db502df8e2"
        },
        {
          "url": "https://git.kernel.org/stable/c/308ab73e97c87bd0e142b11758faab7f88d82854"
        }
      ],
      "title": "hugetlbfs: release subpool on fill_super failure",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-90283",
    "datePublished": "2026-09-17T16:08:13.356Z",
    "dateReserved": "2026-09-11T19:38:34.797Z",
    "dateUpdated": "2026-10-19T09:01:01.727Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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