{"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": "2026-05-27T12:57:16.076Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-27T12:57:16.076Z"}, "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-rc1", "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-rc1"}]}]}], "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"}}}}

{}

{"cveTags": [], "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."}], "id": "CVE-2026-46057", "lastModified": "2026-05-27T14:48:03.013", "metrics": {}, "published": "2026-05-27T14:17:25.433", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1c513b8a00df13d231021e74ad92babb3fedf64a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2fcde49092aac55d5beef43fdd3633217672f7d1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/874c8f83826c95c62c21d9edfe9ef43e5c346724"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{}

{}