{
  "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-2021-47652",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2021-47652",
    "idYear": 2021,
    "status": "PUBLISHED",
    "publishedAt": "2025-02-26T01:54:18.089Z",
    "updatedAt": "2026-05-11T13:58:38.576Z",
    "importedAt": "2026-10-24T01:56:36.661Z",
    "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": "video: fbdev: smscufx: Fix null-ptr-deref in ufx_usb_probe()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nvideo: fbdev: smscufx: Fix null-ptr-deref in ufx_usb_probe()\n\nI got a null-ptr-deref report:\n\nBUG: kernel NULL pointer dereference, address: 0000000000000000\n...\nRIP: 0010:fb_destroy_modelist+0x38/0x100\n...\nCall Trace:\n ufx_usb_probe.cold+0x2b5/0xac1 [smscufx]\n usb_probe_interface+0x1aa/0x3c0 [usbcore]\n really_probe+0x167/0x460\n...\n ret_from_fork+0x1f/0x30\n\nIf fb_alloc_cmap() fails in ufx_usb_probe(), fb_destroy_modelist() will\nbe called to destroy modelist in the error handling path. But modelist\nhas not been initialized yet, so it will result in null-ptr-deref.\n\nInitialize modelist before calling fb_alloc_cmap() to fix this bug.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d1b6a1f0c23b7164250479bf92e2893291dca539"
            },
            {
              "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0fd28daec73525382e5c992db8743bf76e42cd5c"
            },
            {
              "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5",
              "status": "affected",
              "versionType": "git",
              "lessThan": "dd3a6cc7385b89ec2303f39dfc3bafa4e24cec4b"
            },
            {
              "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5",
              "status": "affected",
              "versionType": "git",
              "lessThan": "da8b269cc0a2526ebeaccbe2484c999eb0f822cf"
            },
            {
              "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5",
              "status": "affected",
              "versionType": "git",
              "lessThan": "64ec3e678d76419f207b9cdd338dda438ca10b1c"
            },
            {
              "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c420b540db4b5d69de0a36d8b9d9a6a79a04f05a"
            },
            {
              "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d396c651e2b508b6179bb678cc029f3becbf5170"
            },
            {
              "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9280ef235b05e8f19f8bc6d547b992f0a0ef398d"
            },
            {
              "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1791f487f877a9e83d81c8677bd3e7b259e7cb27"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.2",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.2"
            },
            {
              "version": "4.9.311",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.9.*"
            },
            {
              "version": "4.14.276",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.14.*"
            },
            {
              "version": "4.19.238",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.189",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.110",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.33",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "5.16.19",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.16.*"
            },
            {
              "version": "5.17.2",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.17.*"
            },
            {
              "version": "5.18",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}