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Vulnerability Details CVE-2025-39697

In the Linux kernel, the following vulnerability has been resolved: NFS: Fix a race when updating an existing write After nfs_lock_and_join_requests() tests for whether the request is still attached to the mapping, nothing prevents a call to nfs_inode_remove_request() from succeeding until we actually lock the page group. The reason is that whoever called nfs_inode_remove_request() doesn't necessarily have a lock on the page group head. So in order to avoid races, let's take the page group lock earlier in nfs_lock_and_join_requests(), and hold it across the removal of the request in nfs_inode_remove_request().
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 3.1%
CVSS Severity
CVSS v3 Score 4.7
Products affected by CVE-2025-39697


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