CVE-2025-38247
- Source
- https://cve.org/CVERecord?id=CVE-2025-38247
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38247.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2025-38247
- Downstream
- Published
- 2025-07-09T10:42:28.531Z
- Modified
- 2026-04-02T12:47:53.374664Z
- Summary
- userns and mnt_idmap leak in open_tree_attr(2)
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
userns and mntidmap leak in opentree_attr(2)
Once wantmountsetattr() has returned a positive, it does require finishmountkattr() to release ->mntuserns. Failing domount_setattr() does not change that.
As the result, we can end up leaking userns and possibly mnt_idmap as well.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38247.json" }- References
-
- https://git.kernel.org/stable/c/0748e553df0225754c316a92af3a77fdc057b358
- https://git.kernel.org/stable/c/142db4e76110dd80239f4e79810f85ea1735ad60
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38247.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-38247
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git