Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2026-46057

Gravedad CVSS v3.1:
BAJA
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
27/05/2026
Última modificación:
16/06/2026

Descripción

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> landlock: Fix LOG_SUBDOMAINS_OFF inheritance across fork()<br /> <br /> hook_cred_transfer() only copies the Landlock security blob when the<br /> source credential has a domain. This is inconsistent with<br /> landlock_restrict_self() which can set LOG_SUBDOMAINS_OFF on a<br /> credential without creating a domain (via the ruleset_fd=-1 path): the<br /> field is committed but not preserved across fork() because the child&amp;#39;s<br /> prepare_creds() calls hook_cred_transfer() which skips the copy when<br /> domain is NULL.<br /> <br /> This breaks the documented use case where a process mutes subdomain logs<br /> before forking sandboxed children: the children lose the muting and<br /> their domains produce unexpected audit records.<br /> <br /> Fix this by unconditionally copying the Landlock credential blob.

Productos y versiones vulnerables

CPE Desde Hasta
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.15 (incluyendo) 6.18.27 (excluyendo)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.19 (incluyendo) 7.0.4 (excluyendo)