{
  "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-2021-47344",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2021-47344",
    "idYear": 2021,
    "status": "PUBLISHED",
    "publishedAt": "2024-05-21T14:35:50.953Z",
    "updatedAt": "2026-05-11T13:52:49.275Z",
    "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": "media: zr364xx: fix memory leak in zr364xx_start_readpipe",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: zr364xx: fix memory leak in zr364xx_start_readpipe\n\nsyzbot reported memory leak in zr364xx driver.\nThe problem was in non-freed urb in case of\nusb_submit_urb() fail.\n\nbacktrace:\n  [<ffffffff82baedf6>] kmalloc include/linux/slab.h:561 [inline]\n  [<ffffffff82baedf6>] usb_alloc_urb+0x66/0xe0 drivers/usb/core/urb.c:74\n  [<ffffffff82f7cce8>] zr364xx_start_readpipe+0x78/0x130 drivers/media/usb/zr364xx/zr364xx.c:1022\n  [<ffffffff84251dfc>] zr364xx_board_init drivers/media/usb/zr364xx/zr364xx.c:1383 [inline]\n  [<ffffffff84251dfc>] zr364xx_probe+0x6a3/0x851 drivers/media/usb/zr364xx/zr364xx.c:1516\n  [<ffffffff82bb6507>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396\n  [<ffffffff826018a9>] really_probe+0x159/0x500 drivers/base/dd.c:576",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "ccbf035ae5de4c535160fc99f73feb44cc55b534",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c57b2bd3247925e253729dce283d6bf6abc9339d"
            },
            {
              "version": "ccbf035ae5de4c535160fc99f73feb44cc55b534",
              "status": "affected",
              "versionType": "git",
              "lessThan": "bbc80a972a3c5d7eba3f6c9c07af8fea42f5c513"
            },
            {
              "version": "ccbf035ae5de4c535160fc99f73feb44cc55b534",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b0633051a6cb24186ff04ce1af99c7de18c1987e"
            },
            {
              "version": "ccbf035ae5de4c535160fc99f73feb44cc55b534",
              "status": "affected",
              "versionType": "git",
              "lessThan": "021c294dff030f3ba38eb81e400ba123db32ecbc"
            },
            {
              "version": "ccbf035ae5de4c535160fc99f73feb44cc55b534",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0edd6759167295ea9969e89283b81017b4c688aa"
            },
            {
              "version": "ccbf035ae5de4c535160fc99f73feb44cc55b534",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c57bfd8000d7677bf435873b440eec0c47f73a08"
            },
            {
              "version": "ccbf035ae5de4c535160fc99f73feb44cc55b534",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5f3f81f1c96b501d180021c23c25e9f48eaab235"
            },
            {
              "version": "ccbf035ae5de4c535160fc99f73feb44cc55b534",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d69b39d89f362cfeeb54a68690768d0d257b2c8f"
            },
            {
              "version": "ccbf035ae5de4c535160fc99f73feb44cc55b534",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0a045eac8d0427b64577a24d74bb8347c905ac65"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.32",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.32"
            },
            {
              "version": "4.4.276",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.4.*"
            },
            {
              "version": "4.9.276",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.9.*"
            },
            {
              "version": "4.14.240",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.14.*"
            },
            {
              "version": "4.19.198",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.133",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.51",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.12.18",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.12.*"
            },
            {
              "version": "5.13.3",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.13.*"
            },
            {
              "version": "5.14",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}