CVE-2025-21795
NFSD: fix hang in nfsd4_shutdown_callback
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Feb 27, 2025 |
| Last Updated | May 12, 2026 |
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Affected Versions
Linux / Linux
67ef9e5fd737eab2495f2586df7e9ea30caa1b77 < abed68027ea3ab893ac85cc46a00e2e64a324239 26540b8940a2e21582afa61a6fb8af87310bac72 < efa8a261c575f816c7e79a87aeb3ef8a0bd6b221 66af25799940b26efd41ea6e648f75c41a48a2c2 < 38d345f612503b850c2973e5a879f88e441b34d7 66af25799940b26efd41ea6e648f75c41a48a2c2 < 23ad7797c74cd8f7f90617f1e59a8703e2b43908 66af25799940b26efd41ea6e648f75c41a48a2c2 < cedfbb92cf97a6bff3d25633001d9c44442ee854 66af25799940b26efd41ea6e648f75c41a48a2c2 < e88d2451cd42e025465d6b51fd716a47b0b3800d 66af25799940b26efd41ea6e648f75c41a48a2c2 < 036ac2778f7b28885814c6fbc07e156ad1624d03
Linux / Linux
5.19
References
git.kernel.org: https://git.kernel.org/stable/c/abed68027ea3ab893ac85cc46a00e2e64a324239 git.kernel.org: https://git.kernel.org/stable/c/efa8a261c575f816c7e79a87aeb3ef8a0bd6b221 git.kernel.org: https://git.kernel.org/stable/c/38d345f612503b850c2973e5a879f88e441b34d7 git.kernel.org: https://git.kernel.org/stable/c/23ad7797c74cd8f7f90617f1e59a8703e2b43908 git.kernel.org: https://git.kernel.org/stable/c/cedfbb92cf97a6bff3d25633001d9c44442ee854 git.kernel.org: https://git.kernel.org/stable/c/e88d2451cd42e025465d6b51fd716a47b0b3800d git.kernel.org: https://git.kernel.org/stable/c/036ac2778f7b28885814c6fbc07e156ad1624d03 lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html cert-portal.siemens.com: https://cert-portal.siemens.com/productcert/html/ssa-265688.html cert-portal.siemens.com: https://cert-portal.siemens.com/productcert/html/ssa-082556.html