CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's ksmbd component, specifically in the SMB2 SET_INFO handlers, which improperly utilize the current worker credentials instead of the credentials associated with the SMB handle. This flaw could allow an attacker to manipulate file permissions and access sensitive information, leading to unauthorized data exposure or modification. Organizations using Linux systems with SMB2 functionality should prioritize patching this critical vulnerability to mitigate potential exploitation risks.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: run set info with opener credentials SMB2 SET_INFO handlers call path-based VFS helpers after checking the access mask granted to the SMB handle. Those helpers perform their owner, inode permission and LSM checks using the current ksmbd worker credentials. Run the complete SET_INFO dispatch with the credentials captured when the handle was opened. This also removes the separate security information credential setup and keeps all SET_INFO classes under one credential scope. Direct override_creds() is used because it can nest with the request credential overrides already used by rename and link helpers.