Executive Summary



This vulnerability is currently undergoing analysis and not all information is available. Please check back soon to view the completed vulnerability summary
Informations
Name CVE-2025-38231 First vendor Publication 2025-07-04
Vendor Cve Last vendor Modification 2025-07-04

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
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Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

In the Linux kernel, the following vulnerability has been resolved:

nfsd: Initialize ssc before laundromat_work to prevent NULL dereference

In nfs4_state_start_net(), laundromat_work may access nfsd_ssc through nfs4_laundromat -> nfsd4_ssc_expire_umount. If nfsd_ssc isn't initialized, this can cause NULL pointer dereference.

Normally the delayed start of laundromat_work allows sufficient time for nfsd_ssc initialization to complete. However, when the kernel waits too long for userspace responses (e.g. in nfs4_state_start_net -> nfsd4_end_grace -> nfsd4_record_grace_done -> nfsd4_cld_grace_done -> cld_pipe_upcall -> __cld_pipe_upcall -> wait_for_completion path), the delayed work may start before nfsd_ssc initialization finishes.

Fix this by moving nfsd_ssc initialization before starting laundromat_work.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-38231

Sources (Detail)

https://git.kernel.org/stable/c/0fccf5f01ed28725cc313a66ca1247eef911d55e
https://git.kernel.org/stable/c/5060e1a5fef184bd11d298e3f0ee920d96a23236
https://git.kernel.org/stable/c/83ac1ba8ca102ab5c0ed4351f8ac6e74ac4d5d64
https://git.kernel.org/stable/c/a97668ec6d73dab237cd1c15efe012a10090a4ed
https://git.kernel.org/stable/c/b31da62889e6d610114d81dc7a6edbcaa503fcf8
https://git.kernel.org/stable/c/d622c2ee6c08147ab8c9b9e37d93b6e95d3258e0
https://git.kernel.org/stable/c/deaeb74ae9318252829c59a84a7d2316fc335660
Source Url

Alert History

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0
Date Informations
2025-07-04 21:20:35
  • First insertion