CVE-2025-38306
- Source
- https://nvd.nist.gov/vuln/detail/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
- Published
- 2025-07-10T08:15:29Z
- Modified
- 2025-09-09T17:15:44Z
- Summary
- [none]
- 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 _haslocked_children(), make it static and switch the fs/namespace.c users to it.
Make haslockedchildren() a wrapper for _haslockedchildren(), calling the latter under readseqlockexcl(&mountlock).
- References