CVE-2025-21795 Affecting perf package, versions *


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

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  • Snyk IDSNYK-CENTOS6-PERF-9030310
  • published2 Mar 2025
  • disclosed27 Feb 2025

Introduced: 27 Feb 2025

NewCVE-2025-21795  (opens in a new tab)

How to fix?

There is no fixed version for Centos:6 perf.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by Centos. See How to fix? for Centos:6 relevant fixed versions and status.

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

NFSD: fix hang in nfsd4_shutdown_callback

If nfs4_client is in courtesy state then there is no point to send the callback. This causes nfsd4_shutdown_callback to hang since cl_cb_inflight is not 0. This hang lasts about 15 minutes until TCP notifies NFSD that the connection was dropped.

This patch modifies nfsd4_run_cb_work to skip the RPC call if nfs4_client is in courtesy state.

CVSS Scores

version 3.1