#VU119288 Memory leak in Linux kernel - CVE-2025-40279
Published: December 8, 2025
Vulnerability identifier: #VU119288
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-2025-40279
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 tcf_connmark_dump() function in net/sched/act_connmark.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/218b67c8c8246d47a2a7910eae80abe4861fe2b7
- https://git.kernel.org/stable/c/25837889ec062f2b7618142cd80253dff3da5343
- https://git.kernel.org/stable/c/31e4aa93e2e5b5647fc235b0f6ee329646878f9e
- https://git.kernel.org/stable/c/51cb05d4fd632596816ba44e882e84db9fb28a7e
- https://git.kernel.org/stable/c/62b656e43eaeae445a39cd8021a4f47065af4389
- https://git.kernel.org/stable/c/73cc56c608c209d3d666cc571293b090a471da70