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CVE-2026-46139 smb: client: use kzalloc to zero-initialize security descriptor buffer

🗓️ 28 May 2026 09:35:55Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 36 Views

Kernel server message block client uses kzalloc to zero-initialize the security descriptor, fixing ACL reserved field issue.

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/client/cifsacl.c"
    ],
    "versions": [
      {
        "version": "1593ddb37bd124c131fe635397df68e854a03108",
        "lessThan": "4c3ed344a970aad51388ac3b0145b98318f0e21f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "da087905e3270e2291c0afae39a28e7d183e5ec3",
        "lessThan": "941a1e6eb35440336913afc88a82103291956d5d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "62e7dd0a39c2d0d7ff03274c36df971f1b3d2d0d",
        "lessThan": "be1ef9512a3f5a755895c24f31b334342f4aa15b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "62e7dd0a39c2d0d7ff03274c36df971f1b3d2d0d",
        "lessThan": "9bdb2ca31368b7671949dfb94a5d57ffccd01edd",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "62e7dd0a39c2d0d7ff03274c36df971f1b3d2d0d",
        "lessThan": "5e489c6c47a2ac15edbaca153b9348e42c1eacab",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "191f2f444745087c3c51fd6042a0e25f42315ab0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6.12.23",
        "lessThan": "6.12.88",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.13.11",
        "lessThan": "6.14",
        "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/client/cifsacl.c"
    ],
    "versions": [
      {
        "version": "6.14",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.14",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.88",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.30",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.7",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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