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CVE-2026-72183 landlock: Fix LANDLOCK_SCOPE_SIGNAL bypass on the SIGIO path

🗓️ 15 Aug 2026 05:53:45Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 27 Views

Landlock SIGIO path allows process group signal delivery to bypass LANDLOCK_SCOPE_SIGNAL restrictions.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "security/landlock/fs.c",
      "security/landlock/fs.h",
      "security/landlock/task.c"
    ],
    "versions": [
      {
        "version": "332facfa80751b80006c2f95b13c6d208ab0aee1",
        "lessThan": "7a92e9fd1d496a610b40e0c4253fd54e7496f5ab",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "18eb75f3af40be1f0fc2025d4ff821711222a2fd",
        "lessThan": "1f18aac2637220b5847d073447498e81ddca10b2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "18eb75f3af40be1f0fc2025d4ff821711222a2fd",
        "lessThan": "04916f7dc6d37cd478b06c86398c34a6963ac8c9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "18eb75f3af40be1f0fc2025d4ff821711222a2fd",
        "lessThan": "4b80320ca7ed03d6e683f95b6066565dc97b9f92",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6861348d863c0eaa4af67492d640a9644a829c59",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0906a9685d7057aea982e970da3e1cf3e5aca68b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6.12.24",
        "lessThan": "6.12.101",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.13.12",
        "lessThan": "6.14",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.14.3",
        "lessThan": "6.15",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "security/landlock/fs.c",
      "security/landlock/fs.h",
      "security/landlock/task.c"
    ],
    "versions": [
      {
        "version": "6.15",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.15",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.101",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.40",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.5",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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