SB2025042250 - Use-after-free in Linux kernel server mgmt
Published: April 22, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025042250
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2025-22041)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the ksmbd_sessions_deregister() function in fs/smb/server/mgmt/user_session.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/15a9605f8d69dc85005b1a00c31a050b8625e1aa
- https://git.kernel.org/stable/c/33cc29e221df7a3085ae413e8c26c4e81a151153
- https://git.kernel.org/stable/c/8ed0e9d2f410f63525afb8351181eea36c80bcf1
- https://git.kernel.org/stable/c/a8a8ae303a8395cbac270b5b404d85df6ec788f8
- https://git.kernel.org/stable/c/ca042cc0e4f9e0d2c8f86dd67e4b22f30a516a9b
- https://git.kernel.org/stable/c/f0eb3f575138b816da74697bd506682574742fcd
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.134