{
  "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-2023-52847",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-52847",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2024-05-21T15:31:44.513Z",
    "updatedAt": "2026-08-05T09:11:40.867Z",
    "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: bttv: fix use after free error due to btv->timeout timer",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: bttv: fix use after free error due to btv->timeout timer\n\nThere may be some a race condition between timer function\nbttv_irq_timeout and bttv_remove. The timer is setup in\nprobe and there is no timer_delete operation in remove\nfunction. When it hit kfree btv, the function might still be\ninvoked, which will cause use after free bug.\n\nThis bug is found by static analysis, it may be false positive.\n\nFix it by adding del_timer_sync invoking to the remove function.\n\ncpu0                cpu1\n                  bttv_probe\n                    ->timer_setup\n                      ->bttv_set_dma\n                        ->mod_timer;\nbttv_remove\n  ->kfree(btv);\n                  ->bttv_irq_timeout\n                    ->USE btv",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "162e6376ac58440beb6a2d2ee294f5d88ea58dd1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "bbc3b8dd2cb7817e703f112d988e4f4728f0f2a9"
            },
            {
              "version": "162e6376ac58440beb6a2d2ee294f5d88ea58dd1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b35fdade92c5058a5e727e233fe263b828de2c9a"
            },
            {
              "version": "162e6376ac58440beb6a2d2ee294f5d88ea58dd1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2f3d9198cdae1cb079ec8652f4defacd481eab2b"
            },
            {
              "version": "162e6376ac58440beb6a2d2ee294f5d88ea58dd1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "51c94256a83fe4e17406c66ff3e1ad7d242d8574"
            },
            {
              "version": "162e6376ac58440beb6a2d2ee294f5d88ea58dd1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "20568d06f6069cb835e05eed432edf962645d226"
            },
            {
              "version": "162e6376ac58440beb6a2d2ee294f5d88ea58dd1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1871014d6ef4812ad11ef7d838d73ce09d632267"
            },
            {
              "version": "162e6376ac58440beb6a2d2ee294f5d88ea58dd1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "847599fffa528b2cdec4e21b6bf7586dad982132"
            },
            {
              "version": "162e6376ac58440beb6a2d2ee294f5d88ea58dd1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "bd5b50b329e850d467e7bcc07b2b6bde3752fbda"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.15",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.15"
            },
            {
              "version": "4.19.299",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.261",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.201",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.139",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.63",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.5.12",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.5.*"
            },
            {
              "version": "6.6.2",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.7",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}