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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2025-21795

NFSD: fix hang in nfsd4_shutdown_callback

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Status
Published
Published
Updated
Assigning organization
Linux

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 67ef9e5fd737eab2495f2586df7e9ea30caa1b77 to < abed68027ea3ab893ac85cc46a00e2e64a324239affected
  • 26540b8940a2e21582afa61a6fb8af87310bac72 to < efa8a261c575f816c7e79a87aeb3ef8a0bd6b221affected
  • 66af25799940b26efd41ea6e648f75c41a48a2c2 to < 38d345f612503b850c2973e5a879f88e441b34d7affected
  • 66af25799940b26efd41ea6e648f75c41a48a2c2 to < 23ad7797c74cd8f7f90617f1e59a8703e2b43908affected
  • 66af25799940b26efd41ea6e648f75c41a48a2c2 to < cedfbb92cf97a6bff3d25633001d9c44442ee854affected
  • 66af25799940b26efd41ea6e648f75c41a48a2c2 to < e88d2451cd42e025465d6b51fd716a47b0b3800daffected
  • 66af25799940b26efd41ea6e648f75c41a48a2c2 to < 036ac2778f7b28885814c6fbc07e156ad1624d03affected
  • 5.10.220 to < 5.10.235affected
  • 5.15.154 to < 5.15.179affected

Linux Linux

Default version status: affected

  • 5.19affected
  • 0 to < 5.19unaffected
  • 5.10.235 to ≤ 5.10.*unaffected
  • 5.15.179 to ≤ 5.15.*unaffected
  • 6.1.129 to ≤ 6.1.*unaffected
  • 6.6.79 to ≤ 6.6.*unaffected
  • 6.12.16 to ≤ 6.12.*unaffected
  • 6.13.4 to ≤ 6.13.*unaffected
  • 6.14 to ≤ *unaffected

References