{
  "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-2023-53219",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53219",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2025-09-15T14:21:47.459Z",
    "updatedAt": "2026-08-05T09:13:09.656Z",
    "importedAt": "2026-10-24T01:57:03.413Z",
    "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": "media: netup_unidvb: fix use-after-free at del_timer()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: netup_unidvb: fix use-after-free at del_timer()\n\nWhen Universal DVB card is detaching, netup_unidvb_dma_fini()\nuses del_timer() to stop dma->timeout timer. But when timer\nhandler netup_unidvb_dma_timeout() is running, del_timer()\ncould not stop it. As a result, the use-after-free bug could\nhappen. The process is shown below:\n\n    (cleanup routine)          |        (timer routine)\n                               | mod_timer(&dev->tx_sim_timer, ..)\nnetup_unidvb_finidev()         | (wait a time)\n  netup_unidvb_dma_fini()      | netup_unidvb_dma_timeout()\n    del_timer(&dma->timeout);  |\n                               |   ndev->pci_dev->dev //USE\n\nFix by changing del_timer() to del_timer_sync().",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "dd5c77814f290b353917df329f36de1472d47154"
            },
            {
              "version": "52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "90229e9ee957d4514425e4a4d82c50ab5d57ac4d"
            },
            {
              "version": "52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1550bcf2983ae1220cc8ab899a39a423fa7cb523"
            },
            {
              "version": "52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f9982db735a8495eee14267cf193c806b957e942"
            },
            {
              "version": "52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "051af3f0b7d1cd8ab7f3e2523ad8ae1af44caba3"
            },
            {
              "version": "52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "07821524f67bf920342bc84ae8b3dea2a315a89e"
            },
            {
              "version": "52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c8f9c05e1ebcc9c7bc211cc8b74d8fb86a8756fc"
            },
            {
              "version": "52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0f5bb36bf9b39a2a96e730bf4455095b50713f63"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.3",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.3"
            },
            {
              "version": "4.14.316",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.14.*"
            },
            {
              "version": "4.19.284",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.244",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.181",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.113",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.30",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.3.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.3.*"
            },
            {
              "version": "6.4",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}