CVE-2025-40286
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-12-06

Last updated on: 2025-12-08

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: smb/server: fix possible memory leak in smb2_read() Memory leak occurs when ksmbd_vfs_read() fails. Fix this by adding the missing kvfree().
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2025-12-06
Last Modified
2025-12-08
Generated
2026-06-16
AI Q&A
2025-12-07
EPSS Evaluated
2026-06-15
NVD
CVE-2025-40286
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
Executive Summary

This vulnerability is a memory leak in the Linux kernel's SMB server component. Specifically, it occurs in the smb2_read() function when the ksmbd_vfs_read() call fails. The issue is due to a missing kvfree() call, which leads to allocated memory not being freed properly.

Impact Analysis

The memory leak can cause increased memory usage on the affected system, potentially leading to degraded performance or system instability over time if exploited or triggered repeatedly.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2025-40286. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart