CVE-2023-53990
Unknown Unknown - Not Provided
Race Condition in Linux Kernel SMB3 Deferred Close Handling

Publication date: 2025-12-24

Last updated on: 2025-12-24

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: SMB3: Add missing locks to protect deferred close file list cifs_del_deferred_close function has a critical section which modifies the deferred close file list. We must acquire deferred_lock before calling cifs_del_deferred_close function.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2025-12-24
Last Modified
2025-12-24
Generated
2026-06-16
AI Q&A
2025-12-24
EPSS Evaluated
2026-06-14
NVD
CVE-2023-53990
EUVD
EUVD-2025-205177
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-UNKNOWN
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Impact Analysis

The impact of this vulnerability could include potential data corruption or instability in the Linux kernel's SMB3 file handling due to race conditions caused by missing locks. This could affect system reliability and data integrity when using SMB3 shares.

Executive Summary

This vulnerability involves the Linux kernel's SMB3 implementation where the cifs_del_deferred_close function modifies a deferred close file list without properly acquiring the necessary lock (deferred_lock). This missing lock can lead to race conditions or data corruption when multiple processes access the deferred close file list concurrently.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2023-53990. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart