#VU112237 Improper locking in Linux kernel - CVE-2025-38154

Vulnerability identifier: #VU112237

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-2025-38154

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 sk_psock_backlog() function in net/core/skmsg.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/15c0250dae3b48a398447d2b364603821ed4ed90
https://git.kernel.org/stable/c/4c6fa65ab2aec7df94809478c8d28ef38676a1b7
https://git.kernel.org/stable/c/4edb40b05cb6a261775abfd8046804ca139a5546
https://git.kernel.org/stable/c/7c0a16f6ea2b1c82a03bccd5d1bdb4a7bbd4d987
https://git.kernel.org/stable/c/8259eb0e06d8f64c700f5fbdb28a5c18e10de291
https://git.kernel.org/stable/c/b19cbf0b9a91f5a0d93fbcd761ff71c48ab40ed9

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?