#VU113807 Input validation error in Linux kernel - CVE-2025-38499

Vulnerability identifier: #VU113807

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-2025-38499

CWE-ID: CWE-20

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 input validation within the clone_private_mount() function in fs/namespace.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/38628ae06e2a37770cd794802a3f1310cf9846e3
https://git.kernel.org/stable/c/c28f922c9dcee0e4876a2c095939d77fe7e15116
https://git.kernel.org/stable/c/d717325b5ecf2a40daca85c61923e17f32306179
https://git.kernel.org/stable/c/dc6a664089f10eab0fb36b6e4f705022210191d2
https://git.kernel.org/stable/c/e77078e52fbf018ab986efb3c79065ab35025607

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?