#VU113261 NULL pointer dereference in Linux kernel - CVE-2025-38458

Vulnerability identifier: #VU113261

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-2025-38458

CWE-ID: CWE-476

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 NULL pointer dereference within the atmarpd_close() function in net/atm/clip.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/07b585ae3699c0a5026f86ac846f144e34875eee
https://git.kernel.org/stable/c/22fc46cea91df3dce140a7dc6847c6fcf0354505
https://git.kernel.org/stable/c/27b5bb7ea1a8fa7b8c4cfde4d2bf8650cca2e8e8
https://git.kernel.org/stable/c/34a09d6240a25185ef6fc5a19dbb3cdbb6a78bc0
https://git.kernel.org/stable/c/7f1cad84ac1a6af42d9d57e879de47ce37995024
https://git.kernel.org/stable/c/7f8a9b396037daae453a108faec5b28886361323
https://git.kernel.org/stable/c/9ec7e943aee5c28c173933f9defd40892fb3be3d
https://git.kernel.org/stable/c/a16fbe6087e91c8e7c4aa50e1af7ad56edbd9e3e

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?