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CVE-2022-50856 cifs: Fix xid leak in cifs_ses_add_channel()

🗓️ 30 Dec 2025 12:15:31Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 17 Views

Fixes leak of the transaction identifier in session channel by freeing it before return.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/cifs/sess.c"
    ],
    "versions": [
      {
        "version": "d70e9fa55884760b6d6c293dbf20d8c52ce11fb7",
        "lessThan": "7286f875510486fdc2fc426b7c826262e2283a65",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d70e9fa55884760b6d6c293dbf20d8c52ce11fb7",
        "lessThan": "847301f0ee1c29f34cc48547ce1071990f24969c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d70e9fa55884760b6d6c293dbf20d8c52ce11fb7",
        "lessThan": "db2a8b6c17e128d91f35d836c569f4a6bda4471b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d70e9fa55884760b6d6c293dbf20d8c52ce11fb7",
        "lessThan": "e909d054bdea75ef1ec48c18c5936affdaecbb2c",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/cifs/sess.c"
    ],
    "versions": [
      {
        "version": "5.5",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.5",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.152",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.76",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.0.6",
        "lessThanOrEqual": "6.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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