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CVE-2022-50630 mm: hugetlb: fix UAF in hugetlb_handle_userfault

🗓️ 08 Dec 2025 01:16:45Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 25 Views

Fixes use-after-free in hugetlb_handle_userfault by dropping vma_lock unlock during handling.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "mm/hugetlb.c"
    ],
    "versions": [
      {
        "version": "1a1aad8a9b7bd34f60cdf98cd7915f00ae892c45",
        "lessThan": "45c33966759ea1b4040c08dacda99ef623c0ca29",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1a1aad8a9b7bd34f60cdf98cd7915f00ae892c45",
        "lessThan": "0db2efb3bff879566f05341d94c3de00ac95c4cc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1a1aad8a9b7bd34f60cdf98cd7915f00ae892c45",
        "lessThan": "dd691973f67b2800a97db723b1ff6f07fdcf7f5a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1a1aad8a9b7bd34f60cdf98cd7915f00ae892c45",
        "lessThan": "78504bcedb2f1bbfb353b4d233c24d641c4dda33",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1a1aad8a9b7bd34f60cdf98cd7915f00ae892c45",
        "lessThan": "958f32ce832ba781ac20e11bb2d12a9352ea28fc",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "mm/hugetlb.c"
    ],
    "versions": [
      {
        "version": "4.11",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.11",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.150",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.75",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.19.17",
        "lessThanOrEqual": "5.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.0.3",
        "lessThanOrEqual": "6.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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11 May 2026 19:22Current
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