{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2022-49076",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-49076",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2025-02-26T01:54:39.251Z",
    "updatedAt": "2026-08-05T08:53:45.482Z",
    "importedAt": "2026-10-24T01:56:49.724Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "RDMA/hfi1: Fix use-after-free bug for mm struct",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/hfi1: Fix use-after-free bug for mm struct\n\nUnder certain conditions, such as MPI_Abort, the hfi1 cleanup code may\nrepresent the last reference held on the task mm.\nhfi1_mmu_rb_unregister() then drops the last reference and the mm is freed\nbefore the final use in hfi1_release_user_pages().  A new task may\nallocate the mm structure while it is still being used, resulting in\nproblems. One manifestation is corruption of the mmap_sem counter leading\nto a hang in down_write().  Another is corruption of an mm struct that is\nin use by another task.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "3d2a9d642512c21a12d19b9250e7a835dcb41a79",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5f54364ff6cfcd14cddf5441c4a490bb28dd69f7"
            },
            {
              "version": "3d2a9d642512c21a12d19b9250e7a835dcb41a79",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9ca11bd8222a612de0d2f54d050bfcf61ae2883f"
            },
            {
              "version": "3d2a9d642512c21a12d19b9250e7a835dcb41a79",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0b7186d657ee55e2cdefae498f07d5c1961e8023"
            },
            {
              "version": "3d2a9d642512c21a12d19b9250e7a835dcb41a79",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5a9a1b24ddb510715f8f621263938186579a965c"
            },
            {
              "version": "3d2a9d642512c21a12d19b9250e7a835dcb41a79",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2bbac98d0930e8161b1957dc0ec99de39ade1b3c"
            },
            {
              "version": "5732f83596f8a573f2cde814cc76a54e1a8995c7",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "5.9.12",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.10"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.10",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.10"
            },
            {
              "version": "5.10.111",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.34",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "5.16.20",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.16.*"
            },
            {
              "version": "5.17.3",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.17.*"
            },
            {
              "version": "5.18",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}