#VU118476 Memory leak in Linux kernel - CVE-2025-40183
Published: November 13, 2025
Vulnerability identifier: #VU118476
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-2025-40183
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 __bpf_redirect_neigh_v6() and __bpf_redirect_neigh_v4() functions in net/core/filter.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/057764172fcc6ee2ccb6c41351a55a9f054dc8fd
- https://git.kernel.org/stable/c/23f3770e1a53e6c7a553135011f547209e141e72
- https://git.kernel.org/stable/c/2e67c2037382abb56497bb9d7b7e10be04eb5598
- https://git.kernel.org/stable/c/3fba965a9aac0fa3cbd8138436a37af9ab466d79
- https://git.kernel.org/stable/c/7404ce888a45eb7da0508b7cbbe6f2e95302eeb8
- https://git.kernel.org/stable/c/b6bfe44b6dbb14a31d86c475cdc9c7689534fb09
- https://git.kernel.org/stable/c/f36a305d30f557306d87c787ddffe094ac5dac89