CVE-2025-39697

Description

In the Linux kernel, the following vulnerability has been resolved:NFS: Fix a race when updating an existing writeAfter nfs_lock_and_join_requests() tests for whether the request isstill attached to the mapping, nothing prevents a call tonfs_inode_remove_request() from succeeding until we actually lock thepage group.The reason is that whoever called nfs_inode_remove_request() doesntnecessarily have a lock on the page group head.So in order to avoid races, lets take the page group lock earlier innfs_lock_and_join_requests(), and hold it across the removal of therequest in nfs_inode_remove_request().

Risk Information

Base Score

4.7

MODERATE

Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Score

Exploitation Probability

0.011

Associated Vulnerability

No records found

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234