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hugetlbfs: release subpool on fill_super failure

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-90283

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-90283

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "7ca02d0ae586fe7df59632966a64f3f1a756ef05",
        "lessThan": "f2d6cea221d777fab3ba18f805ba4c17c90e0b8b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "7ca02d0ae586fe7df59632966a64f3f1a756ef05",
        "lessThan": "91c4f3a87862fd86594d5945512decbfa0b1d13d",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "7ca02d0ae586fe7df59632966a64f3f1a756ef05",
        "lessThan": "04f0354a4abf6793aa5b3f32e2b019ab206f344d",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "7ca02d0ae586fe7df59632966a64f3f1a756ef05",
        "lessThan": "5b7fc7a1ce2a5f2cd8ed80a883157c7108074e0b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "7ca02d0ae586fe7df59632966a64f3f1a756ef05",
        "lessThan": "1d8be4ee81e73fcc52e58f47842d9a2277cfeaaa",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "7ca02d0ae586fe7df59632966a64f3f1a756ef05",
        "lessThan": "dfe848cadfde4179a0691da34f4bed36ff7185b5",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "7ca02d0ae586fe7df59632966a64f3f1a756ef05",
        "lessThan": "dc2bd517ac0bce4ec7498644bd16b6db502df8e2",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "7ca02d0ae586fe7df59632966a64f3f1a756ef05",
        "lessThan": "308ab73e97c87bd0e142b11758faab7f88d82854",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "fs/hugetlbfs/inode.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.1"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.1",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.270",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.221",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.188",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.157",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.110",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.52",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.6",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "fs/hugetlbfs/inode.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-90283

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#36641 · Revision 1
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Publisher date
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