Buffer overflow in Linux kernel - CVE-2025-21660
Published: January 21, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU103138
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-21660
CWE-ID: CWE-119
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 perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the ksmbd_vfs_kern_path_locked() function in fs/smb/server/vfs.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2025-21660
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/13e41c58c74baa71f34c0830eaa3c29d53a6e964
- https://git.kernel.org/stable/c/2ac538e40278a2c0c051cca81bcaafc547d61372
- https://git.kernel.org/stable/c/51669f4af5f7959565b48e55691ba92fabf5c587
- https://git.kernel.org/stable/c/65b31b9d992c0fb0685c51a0cf09993832734fc4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.72