{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "433042a91f9373241307725b52de573933ffedbf"
            },
            {
              "fixed": "02bc2896bdc3e29362d6e40d404006944a159c25"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "4f1fffa2376922f3d1d506e49c0fd445b023a28e"
            },
            {
              "fixed": "3196b5192f246df4272072f61a2f4a3e9967f55d"
            },
            {
              "fixed": "14498ff5ce0f272ce0ef988721413e06b7038972"
            },
            {
              "fixed": "ff2d30927bc3bf3c629f0768d2068096e64ef5ce"
            },
            {
              "fixed": "b55e182f2324bc6a604c21a47aa6c448f719a532"
            }
          ],
          "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-2026-64382.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix double-free in SMB2_open() replay\n\nA response-bearing attempt can return a replayable error and free its\nresponse buffer. If SMB2_open_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-2026-64382",
  "modified": "2026-07-28T03:55:41.007957850Z",
  "published": "2026-07-25T08:50:31.937Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/02bc2896bdc3e29362d6e40d404006944a159c25"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/14498ff5ce0f272ce0ef988721413e06b7038972"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3196b5192f246df4272072f61a2f4a3e9967f55d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b55e182f2324bc6a604c21a47aa6c448f719a532"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ff2d30927bc3bf3c629f0768d2068096e64ef5ce"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64382.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64382"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "smb: client: fix double-free in SMB2_open() replay"
}