Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-46057

In the Linux kernel, the following vulnerability has been resolved: landlock: Fix LOG_SUBDOMAINS_OFF inheritance across fork() hook_cred_transfer() only copies the Landlock security blob when the source credential has a domain. This is inconsistent with landlock_restrict_self() which can set LOG_SUBDOMAINS_OFF on a credential without creating a domain (via the ruleset_fd=-1 path): the field is committed but not preserved across fork() because the child's prepare_creds() calls hook_cred_transfer() which skips the copy when domain is NULL. This breaks the documented use case where a process mutes subdomain logs before forking sandboxed children: the children lose the muting and their domains produce unexpected audit records. Fix this by unconditionally copying the Landlock credential blob.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 2.0%
CVSS Severity
CVSS v3 Score 3.3
Products affected by CVE-2026-46057


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