SB20260113115 - Race condition within a thread in Linux kernel smb server
Published: January 13, 2026
Security Bulletin ID
SB20260113115
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Race condition within a thread (CVE-ID: CVE-2025-68809)
CWE-ID: CWE-366 - Race Condition within a Thread
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to corrupt data.
The vulnerability exists due to a data race within the ksmbd_query_inode_status() and __ksmbd_inode_close() functions in fs/smb/server/vfs_cache.c. A local user can corrupt data.
Remediation
Install update from vendor's website.