Executive Summary

Informations
Name CVE-2025-21900 First vendor Publication 2025-04-01
Vendor Cve Last vendor Modification 2025-04-15

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 5.5
Base Score 5.5 Environmental Score 5.5
impact SubScore 3.6 Temporal Score 5.5
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

In the Linux kernel, the following vulnerability has been resolved:

NFSv4: Fix a deadlock when recovering state on a sillyrenamed file

If the file is sillyrenamed, and slated for delete on close, it is possible for a server reboot to triggeer an open reclaim, with can again race with the application call to close(). When that happens, the call to put_nfs_open_context() can trigger a synchronous delegreturn call which deadlocks because it is not marked as privileged.

Instead, ensure that the call to nfs4_inode_return_delegation_on_close() catches the delegreturn, and schedules it asynchronously.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-21900

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-667 Insufficient Locking

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 8
Os 3715

Sources (Detail)

https://git.kernel.org/stable/c/4fe4ae6c2e01d028856b73b6328b12b8945df871
https://git.kernel.org/stable/c/8f8df955f078e1a023ee55161935000a67651f38
https://git.kernel.org/stable/c/f41a60bc43e7abbc636fee78bed0d74c31e738b0
Source Url

Alert History

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Date Informations
2025-06-26 02:41:07
  • Multiple Updates
2025-06-25 12:38:12
  • Multiple Updates
2025-06-24 02:45:33
  • Multiple Updates
2025-05-27 02:52:49
  • First insertion