{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "ead9079f75696a028aea8860787770c80eddb8f9"
            },
            {
              "fixed": "2fcde49092aac55d5beef43fdd3633217672f7d1"
            },
            {
              "fixed": "1c513b8a00df13d231021e74ad92babb3fedf64a"
            },
            {
              "fixed": "874c8f83826c95c62c21d9edfe9ef43e5c346724"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.15.0"
            },
            {
              "fixed": "6.18.27"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46057.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nlandlock: Fix LOG_SUBDOMAINS_OFF inheritance across fork()\n\nhook_cred_transfer() only copies the Landlock security blob when the\nsource credential has a domain.  This is inconsistent with\nlandlock_restrict_self() which can set LOG_SUBDOMAINS_OFF on a\ncredential without creating a domain (via the ruleset_fd=-1 path): the\nfield is committed but not preserved across fork() because the child's\nprepare_creds() calls hook_cred_transfer() which skips the copy when\ndomain is NULL.\n\nThis breaks the documented use case where a process mutes subdomain logs\nbefore forking sandboxed children: the children lose the muting and\ntheir domains produce unexpected audit records.\n\nFix this by unconditionally copying the Landlock credential blob.",
  "id": "CVE-2026-46057",
  "modified": "2026-07-15T01:48:54.568889156Z",
  "published": "2026-05-27T12:57:16.076Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1c513b8a00df13d231021e74ad92babb3fedf64a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2fcde49092aac55d5beef43fdd3633217672f7d1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/874c8f83826c95c62c21d9edfe9ef43e5c346724"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46057.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46057"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "landlock: Fix LOG_SUBDOMAINS_OFF inheritance across fork()"
}