#VU117845 Memory leak in Linux kernel - CVE-2025-40105
Published: October 31, 2025
Vulnerability identifier: #VU117845
Vulnerability risk: Low
CVSSv4.0: 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-2025-40105
CWE-ID: CWE-401
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the d_alloc() function in fs/dcache.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/20863bb7fbb016379f8227122edfabc5c799bc79
- https://git.kernel.org/stable/c/56094ad3eaa21e6621396cc33811d8f72847a834
- https://git.kernel.org/stable/c/620f3b0ede9c5cb4976cd0457d0b04ad551e5d6b
- https://git.kernel.org/stable/c/7e0c8aaf4e28918abded547a5147c7d52c4af7d2
- https://git.kernel.org/stable/c/8004d4b8cbf1bd68a23c160d57287e177c82cc69
- https://git.kernel.org/stable/c/b5abafd0aa8d7bcb935c8f91e4cfc2f2820759e4
- https://git.kernel.org/stable/c/cebfbf40056a4d858b2a3ca59a69936d599bd209
- https://git.kernel.org/stable/c/eadc49999fa994d6fbd70c332bd5d5051cc42261