SB2025121655 - Memory leak in Linux kernel smb server
Published: December 16, 2025
Security Bulletin ID
SB2025121655
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Memory leak (CVE-ID: CVE-2025-68246)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the ksmbd_kthread_fn() function in fs/smb/server/transport_tcp.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/35521b5a7e8a184548125f4530552101236dcda1
- https://git.kernel.org/stable/c/4587a7826be1ae0190dba10ff70b46bb0e3bc7d3
- https://git.kernel.org/stable/c/5746b2a0f5eb3d79667b3c51fe849bd62464220e
- https://git.kernel.org/stable/c/7a3c7154d5fc05956a8ad9e72ecf49e21555bfca
- https://git.kernel.org/stable/c/98a5fd31cbf72d46bf18e50b3ab0ce86d5f319a9