Race Condition in Linux Kernel NFS Handling

CVE-2025-39697

What is CVE-2025-39697?

A race condition vulnerability exists within the Linux kernel's NFS implementation. This issue arises when the system's handling of existing write requests can lead to unexpected behaviors during concurrent operations. Specifically, during the processing of requests, a lack of proper locking can allow for the removal of requests without adequate synchronization. By implementing a locking mechanism earlier in the request handling process, the vulnerability is mitigated, ensuring that data integrity is maintained and the risk of inconsistency is significantly reduced. It's crucial for users running affected versions of the Linux kernel to apply the latest patches to safeguard against potential exploits.

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