Race condition within a thread in Linux kernel - CVE-2025-68809
Published: January 13, 2026
Vulnerability identifier: #VU121310
CSH Severity: Low
CVSS v4.0: 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
CVE-ID: CVE-2025-68809
CWE-ID: CWE-366
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
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.
How to mitigate CVE-2025-68809
Install update from vendor's repository.