CVE-2025-21795 - Linux Kernel NFS Server RPC Callback Hang Vulnerability

CVE-2025-21795 - Linux Kernel NFS Server RPC Callback Hang Vulnerability

https://cvefeed.io/rssfeed/latest.atom / Thu, 02/27/2025 - 09:47
CVE ID : CVE-2025-21795
Published : Feb. 27, 2025, 3:15 a.m. | 3 hours, 38 minutes ago
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.
Severity: 0.0 | NA
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