CyberRota Analysis
This is a high severity vulnerability with a CVSS score of 7.5. It affects Linux.
CVE
CVE-2025-21795
Severity
HIGH
CVSS
7.5
EPSS
0.62%
Linux
Original NVD Description
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.
Related CVEs
Other vulnerabilities affecting the same vendor(s)