{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "743f70406264348c0830f38409eb6c40a42fb2db"
            },
            {
              "fixed": "96e53bb3ee2f354cf6b4ab07bcc56e500f8b3f74"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "3a6d6b332f92990958602c1e35ce0173e2dd62e9"
            },
            {
              "fixed": "7425453ea16dbc3bbb0f6cac4d60b537e5e4d151"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "b64e3b5d8d759dd4333992e4ba4dadf9359952c8"
            },
            {
              "fixed": "4d339b219004869e96c4ce56b8891f83a38da4c0"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "9ee608a64e37cea5b4b13e436c559dd0fb2ad1b5"
            },
            {
              "fixed": "e66dcf7bb9c4df5582c82bc3582725abcbfbea73"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "e3a43633023e3cacaca60d4b8972d084a2b06236"
            },
            {
              "fixed": "639deb962986ef2f5e2a6d5a600c66f922471e81"
            },
            {
              "fixed": "ebbbc4bfad4cb355d17c671223d0814ee3ef4eda"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.1.163"
            },
            {
              "fixed": "6.1.165"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.6.124"
            },
            {
              "fixed": "6.6.128"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.12.70"
            },
            {
              "fixed": "6.12.75"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.18.10"
            },
            {
              "fixed": "6.18.14"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.1.165"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.128"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.75"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.14"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "6.19.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45972.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix potential UAF and double free in smb2_open_file()\n\nZero out @err_iov and @err_buftype before retrying SMB2_open() to\nprevent an UAF bug if @data != NULL, otherwise a double free.",
  "id": "CVE-2026-45972",
  "modified": "2026-07-08T05:38:59.514706418Z",
  "published": "2026-05-27T12:18:31.500Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4d339b219004869e96c4ce56b8891f83a38da4c0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/639deb962986ef2f5e2a6d5a600c66f922471e81"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7425453ea16dbc3bbb0f6cac4d60b537e5e4d151"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/96e53bb3ee2f354cf6b4ab07bcc56e500f8b3f74"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e66dcf7bb9c4df5582c82bc3582725abcbfbea73"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ebbbc4bfad4cb355d17c671223d0814ee3ef4eda"
    },
    {
      "type": "WEB",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45972.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/security/cve/CVE-2026-45972"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45972.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45972"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481973"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "smb: client: fix potential UAF and double free in smb2_open_file()"
}