CVE-2025-37863
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2025-37863
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-37863.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2025-37863
- Downstream
- Published
- 2025-05-09T06:43:54.250Z
- Modified
- 2025-11-28T02:34:49.108974Z
- Summary
- ovl: don't allow datadir only
- 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.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37863.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- 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://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37863.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-37863
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedcc0918b3582c98f12cfb30bf7496496d14bff3e9Fixed0874b629f65320778e7e3e206177770666d9db18
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced24e16e385f2272b1a9df51337a5c32d28a29c7adFixedb9e3579213ba648fa23f780e8d53e99011c62331Fixed21d2ffb0e9838a175064c22f3a9de97d1f56f27dFixedeb3a04a8516ee9b5174379306f94279fc90424c4