{
  "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-2022-50506",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-50506",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2025-10-04T15:43:54.955Z",
    "updatedAt": "2026-05-11T19:20:44.998Z",
    "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": "drbd: only clone bio if we have a backing device",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrbd: only clone bio if we have a backing device\n\nCommit c347a787e34cb (drbd: set ->bi_bdev in drbd_req_new) moved a\nbio_set_dev call (which has since been removed) to \"earlier\", from\ndrbd_request_prepare to drbd_req_new.\n\nThe problem is that this accesses device->ldev->backing_bdev, which is\nnot NULL-checked at this point. When we don't have an ldev (i.e. when\nthe DRBD device is diskless), this leads to a null pointer deref.\n\nSo, only allocate the private_bio if we actually have a disk. This is\nalso a small optimization, since we don't clone the bio to only to\nimmediately free it again in the diskless case.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "c347a787e34cba0e5a80a04082dacaf259105605",
              "status": "affected",
              "versionType": "git",
              "lessThan": "05580a3bbf3cec677cb00a85dfeb21d6a9b48eaf"
            },
            {
              "version": "c347a787e34cba0e5a80a04082dacaf259105605",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6d42ddf7f27b6723549ee6d4c8b1b418b59bf6b5"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.18",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.18"
            },
            {
              "version": "6.0.6",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.0.*"
            },
            {
              "version": "6.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}