摘要:

In the Linux kernel, the following vulnerability has been resolved:

landlock: Fix d_parent walk

The WARN_ON_ONCE() in collect_domain_accesses() can be triggered when
trying to link a root mount point. This cannot work in practice because
this directory is mounted, but the VFS check is done after the call to
security_path_link().

Do not use source directory's d_parent when the source directory is the
mount point.

[mic: Fix commit message]

安全等级: Low

公告ID: KylinSec-SA-2024-3340

发布日期: 2024年8月21日

关联CVE: CVE-2024-40938