CVE-2025-37863
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2025-37863
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-37863.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2025-37863
- Downstream
- Published
- 2025-05-09T07:16:07Z
- Modified
- 2025-05-12T17:32:32Z
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
ovl: don't allow datadir only
In theory overlayfs could support upper layer directly referring to a data layer, but there's no current use case for this.
Originally, when data-only layers were introduced, this wasn't allowed, only introduced by the "datadir+" feature, but without actually handling this case, resulting in an Oops.
Fix by disallowing datadir without lowerdir.
- References
-
- https://git.kernel.org/stable/c/0874b629f65320778e7e3e206177770666d9db18
- https://git.kernel.org/stable/c/21d2ffb0e9838a175064c22f3a9de97d1f56f27d
- https://git.kernel.org/stable/c/b9e3579213ba648fa23f780e8d53e99011c62331
- https://git.kernel.org/stable/c/eb3a04a8516ee9b5174379306f94279fc90424c4
- https://security-tracker.debian.org/tracker/CVE-2025-37863
Affected packages
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source