Vulnerability Description
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]
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.19, < 6.1.95 |
References
- https://git.kernel.org/stable/c/88da52ccd66e65f2e63a6c35c9dff55d448ef4dcPatch
- https://git.kernel.org/stable/c/b6e5e696435832b33e40775f060ef5c95f4fda1fPatch
- https://git.kernel.org/stable/c/c7618c7b0b8c45bcef34410cc1d1e953eb17f8f6Patch
- https://git.kernel.org/stable/c/cc30d05b34f9a087a6928d09b131f7b491e9ab11Patch
- https://git.kernel.org/stable/c/88da52ccd66e65f2e63a6c35c9dff55d448ef4dcPatch
- https://git.kernel.org/stable/c/b6e5e696435832b33e40775f060ef5c95f4fda1fPatch
- https://git.kernel.org/stable/c/c7618c7b0b8c45bcef34410cc1d1e953eb17f8f6Patch
- https://git.kernel.org/stable/c/cc30d05b34f9a087a6928d09b131f7b491e9ab11Patch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
FAQ
What is CVE-2024-40938?
CVE-2024-40938 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 poin...
How severe is CVE-2024-40938?
CVE-2024-40938 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-40938?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.