#VU106851 Resource management error in Linux kernel - CVE-2025-21938
Published: April 2, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU106851
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-2025-21938
CWE-ID: CWE-399
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 resource management error within the __mptcp_pm_release_addr_entry(), mptcp_pm_nl_append_new_local_addr(), mptcp_pm_nl_get_local_id() and mptcp_pm_nl_add_addr_doit() functions in net/mptcp/pm_netlink.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/022bfe24aad8937705704ff2e414b100cf0f2e1a
- https://git.kernel.org/stable/c/125ccafe6dd062901b5a0c31ee9038740fc8859e
- https://git.kernel.org/stable/c/4b228dae3d2cc6d9dce167449cd8fa9f028e9376
- https://git.kernel.org/stable/c/f1404f368c40fc6a068dad72e4ee0824ee6a78ee
- https://git.kernel.org/stable/c/f3fcdb2de9fdbed9d8c6a8eb2c5fbd7d6f54a4d8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.83