#VU108853 Memory leak in Linux kernel - CVE-2025-37849

Vulnerability identifier: #VU108853

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-2025-37849

CWE-ID: CWE-401

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 memory leak within the kvm_arch_vcpu_create() function in arch/arm64/kvm/arm.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.14, 6.14.1, 6.14.2

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External links
https://git.kernel.org/stable/c/07476e0d932afc53c05468076393ac35d0b4999e
https://git.kernel.org/stable/c/2480326eba8ae9ccc5e4c3c2dc8d407db68e3c52
https://git.kernel.org/stable/c/250f25367b58d8c65a1b060a2dda037eea09a672
https://git.kernel.org/stable/c/5085e02362b9948f82fceca979b8f8e12acb1cc5
https://git.kernel.org/stable/c/c322789613407647a05ff5c451a7bf545fb34e73
https://git.kernel.org/stable/c/f1e9087abaeedec9bf2894a282ee4f0d8383f299
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14.3

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.