{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-46057",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-05-13T15:03:33.094Z",
        "datePublished": "2026-05-27T12:57:16.076Z",
        "dateUpdated": "2026-06-14T17:51:11.492Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-06-14T17:51:11.492Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "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."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "security/landlock/cred.c",
                        "tools/testing/selftests/landlock/audit_test.c"
                    ],
                    "versions": [
                        {
                            "version": "ead9079f75696a028aea8860787770c80eddb8f9",
                            "lessThan": "2fcde49092aac55d5beef43fdd3633217672f7d1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ead9079f75696a028aea8860787770c80eddb8f9",
                            "lessThan": "1c513b8a00df13d231021e74ad92babb3fedf64a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ead9079f75696a028aea8860787770c80eddb8f9",
                            "lessThan": "874c8f83826c95c62c21d9edfe9ef43e5c346724",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "security/landlock/cred.c",
                        "tools/testing/selftests/landlock/audit_test.c"
                    ],
                    "versions": [
                        {
                            "version": "6.15",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.15",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.27",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.4",
                            "lessThanOrEqual": "7.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.15",
                                    "versionEndExcluding": "6.18.27"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.15",
                                    "versionEndExcluding": "7.0.4"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.15",
                                    "versionEndExcluding": "7.1"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/2fcde49092aac55d5beef43fdd3633217672f7d1"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1c513b8a00df13d231021e74ad92babb3fedf64a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/874c8f83826c95c62c21d9edfe9ef43e5c346724"
                }
            ],
            "title": "landlock: Fix LOG_SUBDOMAINS_OFF inheritance across fork()",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}