CVE-2025-38306
- Source
- https://cve.org/CVERecord?id=CVE-2025-38306
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38306.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2025-38306
- Downstream
- Related
- Published
- 2025-07-10T07:42:16.806Z
- Modified
- 2026-03-20T12:42:47.914379Z
- Summary
- fs/fhandle.c: fix a race in call of has_locked_children()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
fs/fhandle.c: fix a race in call of haslockedchildren()
maydecodefh() is calling haslockedchildren() while holding no locks. That's an oopsable race...
The rest of the callers are safe since they are holding namespace_sem and are guaranteed a positive refcount on the mount in question.
Rename the current haslockedchildren() to __haslockedchildren(), make it static and switch the fs/namespace.c users to it.
Make haslockedchildren() a wrapper for _haslockedchildren(), calling the latter under readseqlockexcl(&mountlock).
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38306.json" }- References
-
- https://git.kernel.org/stable/c/1f282cdc1d219c4a557f7009e81bc792820d9d9a
- https://git.kernel.org/stable/c/287c7d34eedd37af1272dfb3b6e8656f4f026424
- https://git.kernel.org/stable/c/6482c3dccbfb8d20e2856ce67c75856859930b3f
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38306.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-38306
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git