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Linux Kernel ksmbd Empty String Rename Vulnerability Causes Kernel Oops

Vulnerability

A vulnerability in the Linux kernel's ksmbd component allows clients to send an empty string as a new name when renaming files or directories. This action leads to a kernel oops error due to a failure in the d_alloc function. The issue has been addressed by implementing a patch that returns an error when an empty new name string is provided for renaming.

Impact

The vulnerability causes a kernel oops, which is a serious error that can lead to a system crash or instability.

Added: Jun 9, 2025, 7:46 PM
Updated: Jun 9, 2025, 7:46 PM

Vulnerability Rating

Custom Algorithm
spread
9.0
impact
2.5
exploitability
5.3
remediation
0.0
relevance
0.0
threat
3.2
urgency
2.9
incentive
1.7

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.