SB2025071194 - Input validation error in Linux kernel smb server
Published: July 11, 2025
Security Bulletin ID
SB2025071194
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) Input validation error (CVE-ID: CVE-2025-38325)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the alloc_transport() function in fs/smb/server/transport_tcp.c, within the KSMBD_TRANS(), smb_direct_free_transport() and free_transport() functions in fs/smb/server/transport_rdma.c, within the ksmbd_conn_free() function in fs/smb/server/connection.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.