In the Linux kernel, the following vulnerability has been resolved:
landlock: Fix d_parent walk
The WARNONONCE() in collectdomainaccesses() 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 securitypathlink().
Do not use source directory's d_parent when the source directory is the mount point.
[mic: Fix commit message]
{
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/40xxx/CVE-2024-40938.json"
}