{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "433042a91f9373241307725b52de573933ffedbf"
            },
            {
              "fixed": "5821f9dbb8b5b24391850a13418e633edd0fb003"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "4f1fffa2376922f3d1d506e49c0fd445b023a28e"
            },
            {
              "fixed": "d684f4134998085702009b94c35c2003fc9e72d3"
            },
            {
              "fixed": "52af1975f0dfae990c5a0e85872cc41be0e88a68"
            },
            {
              "fixed": "901891513951bc8322ece754863909ea45af95c6"
            },
            {
              "fixed": "145f820dcbb2cced374f2532f8a61a44dce4a615"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.6.32"
            },
            {
              "fixed": "6.6.145"
            }
          ],
          "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": "6.6.145"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.96"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.8.0"
            },
            {
              "fixed": "6.18.39"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "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-2026-64384.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix change notify replay double-free\n\nA response-bearing attempt can return a replayable error and free its\nresponse buffer. If SMB2_notify_init() fails before the next send, cleanup\nretains the previous buffer type and frees that response again.\n\nReset response bookkeeping before each attempt to prevent the stale free.",
  "id": "CVE-2026-64384",
  "modified": "2026-09-06T03:30:32.208031747Z",
  "published": "2026-07-25T08:50:33.306Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/145f820dcbb2cced374f2532f8a61a44dce4a615"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/52af1975f0dfae990c5a0e85872cc41be0e88a68"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5821f9dbb8b5b24391850a13418e633edd0fb003"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/901891513951bc8322ece754863909ea45af95c6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d684f4134998085702009b94c35c2003fc9e72d3"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64384.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64384"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "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 change notify replay double-free"
}