{
  "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-2021-47173",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2021-47173",
    "idYear": 2021,
    "status": "PUBLISHED",
    "publishedAt": "2024-03-25T09:16:24.466Z",
    "updatedAt": "2026-05-11T13:49:23.402Z",
    "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": "misc/uss720: fix memory leak in uss720_probe",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nmisc/uss720: fix memory leak in uss720_probe\n\nuss720_probe forgets to decrease the refcount of usbdev in uss720_probe.\nFix this by decreasing the refcount of usbdev by usb_put_dev.\n\nBUG: memory leak\nunreferenced object 0xffff888101113800 (size 2048):\n  comm \"kworker/0:1\", pid 7, jiffies 4294956777 (age 28.870s)\n  hex dump (first 32 bytes):\n    ff ff ff ff 31 00 00 00 00 00 00 00 00 00 00 00  ....1...........\n    00 00 00 00 00 00 00 00 00 00 00 00 03 00 00 00  ................\n  backtrace:\n    [<ffffffff82b8e822>] kmalloc include/linux/slab.h:554 [inline]\n    [<ffffffff82b8e822>] kzalloc include/linux/slab.h:684 [inline]\n    [<ffffffff82b8e822>] usb_alloc_dev+0x32/0x450 drivers/usb/core/usb.c:582\n    [<ffffffff82b98441>] hub_port_connect drivers/usb/core/hub.c:5129 [inline]\n    [<ffffffff82b98441>] hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]\n    [<ffffffff82b98441>] port_event drivers/usb/core/hub.c:5509 [inline]\n    [<ffffffff82b98441>] hub_event+0x1171/0x20c0 drivers/usb/core/hub.c:5591\n    [<ffffffff81259229>] process_one_work+0x2c9/0x600 kernel/workqueue.c:2275\n    [<ffffffff81259b19>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2421\n    [<ffffffff81261228>] kthread+0x178/0x1b0 kernel/kthread.c:292\n    [<ffffffff8100227f>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0f36163d3abefbda1b21a330b3fdf3c2dc076d94",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5f46b2410db2c8f26b8bb91b40deebf4ec184391"
            },
            {
              "version": "0f36163d3abefbda1b21a330b3fdf3c2dc076d94",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7889c70e6173ef358f3cd7578db127a489035a42"
            },
            {
              "version": "0f36163d3abefbda1b21a330b3fdf3c2dc076d94",
              "status": "affected",
              "versionType": "git",
              "lessThan": "bcb30cc8f8befcbdbcf7a016e4dfd4747c54a364"
            },
            {
              "version": "0f36163d3abefbda1b21a330b3fdf3c2dc076d94",
              "status": "affected",
              "versionType": "git",
              "lessThan": "386918878ce4cd676e4607233866e03c9399a46a"
            },
            {
              "version": "0f36163d3abefbda1b21a330b3fdf3c2dc076d94",
              "status": "affected",
              "versionType": "git",
              "lessThan": "36b5ff1db1a4ef4fdbc2bae364344279f033ad88"
            },
            {
              "version": "0f36163d3abefbda1b21a330b3fdf3c2dc076d94",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5394ae9d8c7961dd93807fdf1b12a1dde96b0a55"
            },
            {
              "version": "0f36163d3abefbda1b21a330b3fdf3c2dc076d94",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a3c3face38cb49932c62adcc1289914f1c742096"
            },
            {
              "version": "0f36163d3abefbda1b21a330b3fdf3c2dc076d94",
              "status": "affected",
              "versionType": "git",
              "lessThan": "dcb4b8ad6a448532d8b681b5d1a7036210b622de"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.14",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.14"
            },
            {
              "version": "4.4.271",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.4.*"
            },
            {
              "version": "4.9.271",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.9.*"
            },
            {
              "version": "4.14.235",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.14.*"
            },
            {
              "version": "4.19.193",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.124",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.42",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.12.9",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.12.*"
            },
            {
              "version": "5.13",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}