Race condition in Linux kernel - CVE-2025-39825
Published: September 16, 2025
Vulnerability identifier: #VU115557
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-39825
CWE-ID: CWE-362
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 escalate privileges on the system.
The vulnerability exists due to a race condition within the cifs_rename2() function in fs/smb/client/inode.c. A local user can escalate privileges on the system.
How to mitigate CVE-2025-39825
Install update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/24b9ed739c8c5b464d983e12cf308982f3ae93c2
- https://git.kernel.org/stable/c/289f945acb20b9b54fe4d13895e44aa58965ddb2
- https://git.kernel.org/stable/c/c9991af5e09924f6f3b3e6996a5e09f9504b4358
- https://git.kernel.org/stable/c/c9e7de284da0be5b44dbe79d71573f9f7f9b144c
- https://git.kernel.org/stable/c/d84291fc7453df7881a970716f8256273aca5747