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CVE-2026-23228 smb: server: fix leak of active_num_conn in ksmbd_tcp_new_connection()

🗓️ 18 Feb 2026 14:53:31Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 23 Views

CVE-2026-23228: smb server fixes leak of active_num_conn in ksmbd_tcp_new_connection when kthread_run() fails by using ksmbd_tcp_disconnect instead of free_transport.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/smb/server/transport_tcp.c"
    ],
    "versions": [
      {
        "version": "4210c3555db4b38bade92331b153e583261f05f9",
        "lessThan": "6dd2645cf080a75be31fa66063c7332b291f46f0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d5d7847e57ac69fa99c18b363a34419bcdb5a281",
        "lessThan": "7ddd69cd1338c6197e1b6b19cec60d99c8633e4f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0d0d4680db22eda1eea785c47bbf66a9b33a8b16",
        "lessThan": "787769c8cc50416af7b8b1a36e6bcd6aaa7680aa",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0d0d4680db22eda1eea785c47bbf66a9b33a8b16",
        "lessThan": "baf664fc90a6139a39a58333e4aaa390c10d45dc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0d0d4680db22eda1eea785c47bbf66a9b33a8b16",
        "lessThan": "cd25e0d809531a67e9dd53b19012d27d2b13425f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0d0d4680db22eda1eea785c47bbf66a9b33a8b16",
        "lessThan": "599271110c35f6b16e2e4e45b9fbd47ed378c982",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0d0d4680db22eda1eea785c47bbf66a9b33a8b16",
        "lessThan": "77ffbcac4e569566d0092d5f22627dfc0896b553",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5.15.91",
        "lessThan": "5.15.201",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.1.9",
        "lessThan": "6.1.164",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/smb/server/transport_tcp.c"
    ],
    "versions": [
      {
        "version": "6.2",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.2",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.201",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.164",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.125",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.72",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.11",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.1",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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