#VU112224 Improper locking in Linux kernel - CVE-2025-38101

Vulnerability identifier: #VU112224

Vulnerability risk: Low

CVSSv4.0: 4.3 [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-2025-38101

CWE-ID: CWE-667

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: 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 ring_buffer_subbuf_order_set() and atomic_dec() functions in kernel/trace/ring_buffer.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/0fc9a295cd8e59c3636e97395e7c74a9c89fee42
https://git.kernel.org/stable/c/40ee2afafc1d9fe3aa44a6fbe440d78a5c96a72e
https://git.kernel.org/stable/c/e09c0600beea469b3ebf974464e526a02d59ad62

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?