{
  "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-2026-89741",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-89741",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-11T19:46:47.877Z",
    "updatedAt": "2026-10-19T08:51:55.196Z",
    "importedAt": "2026-10-24T01:58:35.090Z",
    "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": "Revert \"media: v4l2-dev: fix error handling in __video_register_device()\"",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nRevert \"media: v4l2-dev: fix error handling in __video_register_device()\"\n\nThis reverts commit 2a934fdb01db6458288fc9386d3d8ceba6dd551a.\n\nThe intentions of that patch were good, but it doesn't work.\n\nThe idea is that if device_register fails, you have to do a put_device\nto let the ref counter release resources.\n\nHowever, the V4L2 API says that if video_register_device() fails, then\nyou have to call video_device_release(), which kfree()s the video_device\nstruct.\n\nBut the put_device() will already have freed the struct, so you end\nup in a double-free scenario.\n\nThere is not really a good way of fixing this without breaking\nvideo_register_device() into two parts, one that initializes everything,\nand one that does the actual device_register, and then converting all\nV4L2 drivers to this new model.\n\nThat is a massive job, and it is very unlikely that device_register\nwill fail.\n\nSo rather than ending up in a double-free scenario, just revert this\npatch, and in that case we'll have a small memory leak. Which is a lot\nmore robust.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "e5c8e62ae551e0ad2e15412aa0c57c2856d59677",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8b998c171ed875e402e1fd1c5cd619e4ca05e9c1"
            },
            {
              "version": "8b451a9a46f2bfc510e6d5c2492df91647586184",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3de14b4f681a1b3c6d375d98d9d37a55ebb85349"
            },
            {
              "version": "b6be1f5633eae200af2527e9eeb7f51be5739b0f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8027f82c0f5474ed72448e160ee9778051fa1f49"
            },
            {
              "version": "ae7b143e05b36fc69d6571751855946cc45064c6",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2ac009a65d2385e9f0799eaf9d9694a29153a161"
            },
            {
              "version": "2429bb9fad88c8fa84c4956b0a21cf5afe5e92b7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "712ca1cf756de2557a116e0df55791bac0c9f99e"
            },
            {
              "version": "2a934fdb01db6458288fc9386d3d8ceba6dd551a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "aad08b5f67d2a8116e1a00bce2611c1513b10bce"
            },
            {
              "version": "2a934fdb01db6458288fc9386d3d8ceba6dd551a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ce792b94e03882108019ba996c1a7c4d4e09be2c"
            },
            {
              "version": "2a934fdb01db6458288fc9386d3d8ceba6dd551a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e7600f5cee5de14065f950807931d6e6d40fb2d7"
            },
            {
              "version": "ee141706e701356dda41c6fed9ee18bf427c28e3",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "4451412739ed33a49b34624299394ee575116d0c",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "5.10.239",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.10.270"
            },
            {
              "version": "5.15.186",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.15.221"
            },
            {
              "version": "6.1.142",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.1.188"
            },
            {
              "version": "6.6.95",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.6.157"
            },
            {
              "version": "6.12.35",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.12.109"
            },
            {
              "version": "5.4.295",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.5"
            },
            {
              "version": "6.15.4",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.16"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.16",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.16"
            },
            {
              "version": "5.10.270",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.221",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.188",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.157",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.109",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.50",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}