Memory leak in Linux kernel - CVE-2025-40036
Published: October 28, 2025
Vulnerability identifier: #VU117716
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-2025-40036
CWE-ID: CWE-401
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 leak within the fastrpc_put_args() function in drivers/misc/fastrpc.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2025-40036
Install update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/3ad42dc66445df6977cf4be0c06f1a655299ce6c
- https://git.kernel.org/stable/c/78d33a041555db03903e8037fd053ed74fbd88cb
- https://git.kernel.org/stable/c/a085658264d0c8d4f795d4631f77d7289a021de9
- https://git.kernel.org/stable/c/c000f65f0ac93d9f9cc69a230d372f6ca93e4879
- https://git.kernel.org/stable/c/da1ba64176e0138f2bfa96f9e43e8c3640d01e1e