#VU114157 Improper locking in Linux kernel - CVE-2025-38552
Published: August 18, 2025
Vulnerability identifier: #VU114157
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-2025-38552
CWE-ID: CWE-667
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 improper locking within the subflow_sched_work_if_closed() and mptcp_subflow_fail() functions in net/mptcp/subflow.c, within the mptcp_data_ready(), __mptcp_finish_join(), __mptcp_retrans(), __mptcp_init_sock() and mptcp_finish_join() functions in net/mptcp/protocol.c, within the mptcp_pm_mp_fail_received() function in net/mptcp/pm.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.