CVE-2025-21795
NFSD: fix hang in nfsd4_shutdown_callback
Severity Score
"-"
*CVSS v-
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
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* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2024-12-29 CVE Reserved
- 2025-02-27 CVE Published
- 2025-02-27 CVE Updated
- ---------- EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (8)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/66af25799940b26efd41ea6e648f75c41a48a2c2 | Vuln. Introduced | |
| https://git.kernel.org/stable/c/67ef9e5fd737eab2495f2586df7e9ea30caa1b77 | Vuln. Introduced | |
| https://git.kernel.org/stable/c/26540b8940a2e21582afa61a6fb8af87310bac72 | Vuln. Introduced |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.19 < 6.1.129 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.19 < 6.1.129" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.19 < 6.6.79 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.19 < 6.6.79" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.19 < 6.12.16 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.19 < 6.12.16" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.19 < 6.13.4 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.19 < 6.13.4" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.19 < 6.14-rc3 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.19 < 6.14-rc3" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 5.10.220 Search vendor "Linux" for product "Linux Kernel" and version "5.10.220" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 5.15.154 Search vendor "Linux" for product "Linux Kernel" and version "5.15.154" | en |
Affected
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