{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "e8d5f92b8d30bb4ade76494490c3c065e12411b1"
            },
            {
              "fixed": "94ec20d97aa51547965a539f660a1fe79c6929a3"
            },
            {
              "fixed": "75c0ad13e136961328253742501b4efc3988a587"
            },
            {
              "fixed": "bf20c94fa6aaff945f0ae3a23f3212cd299f28d9"
            },
            {
              "fixed": "8a5eba992c862b0c94411eecf9b7121e8636db38"
            },
            {
              "fixed": "7f1f24c367938c5537e2308bf9a965f051d14774"
            },
            {
              "fixed": "30adce93d5c4a5a1ec29d9249e3fdfcc391d406b"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "25c95c6bd4dc50a3c20de0fa7f450ea02b2320fc"
            },
            {
              "last_affected": "4a47581cf010dc351d8069978080fdb000c0776d"
            },
            {
              "last_affected": "d9fe88b2a38dc700bf5bd3a09c7cd11bbc248367"
            },
            {
              "last_affected": "cedb0187b8ba929c3f76f28e6bc25804d65f8a54"
            },
            {
              "last_affected": "e9e791f5c39ab30e374a3b1a9c25ca7ff24988f3"
            },
            {
              "last_affected": "34f026263889e2827e04acdc3a0eb9ecbd191ef0"
            },
            {
              "last_affected": "5f845e5d18d151230476cf90aa46449f69ba2ef1"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "4.4.241"
            },
            {
              "fixed": "4.5"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "4.9.241"
            },
            {
              "fixed": "4.10"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "4.14.203"
            },
            {
              "fixed": "4.15"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "4.19.154"
            },
            {
              "fixed": "4.20"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "5.4.73"
            },
            {
              "fixed": "5.5"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "5.8.17"
            },
            {
              "fixed": "5.9"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "5.9.2"
            },
            {
              "fixed": "5.10"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.10.0"
            },
            {
              "fixed": "5.10.261"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "6.6.145"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.96"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.39"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64345.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: f_printer: take kref only for successful open\n\nprinter_open() returns -EBUSY when the character device is already\nopen, but it increments dev-\u003ekref regardless of the return value. VFS\ndoes not call -\u003erelease() for a failed open, so every rejected second\nopen permanently leaks one reference.\n\nMove kref_get() into the successful-open branch.",
  "id": "CVE-2026-64345",
  "modified": "2026-07-27T03:56:27.785644808Z",
  "published": "2026-07-25T08:50:07.069Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/30adce93d5c4a5a1ec29d9249e3fdfcc391d406b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/75c0ad13e136961328253742501b4efc3988a587"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7f1f24c367938c5537e2308bf9a965f051d14774"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8a5eba992c862b0c94411eecf9b7121e8636db38"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/94ec20d97aa51547965a539f660a1fe79c6929a3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bf20c94fa6aaff945f0ae3a23f3212cd299f28d9"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64345.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64345"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "usb: gadget: f_printer: take kref only for successful open"
}