#VU112838 Incorrect calculation in Linux kernel - CVE-2025-38320

Vulnerability identifier: #VU112838

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-2025-38320

CWE-ID: CWE-682

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 incorrect calculation within the regs_get_kernel_stack_nth() function in arch/arm64/kernel/ptrace.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/01f91d415a8375d85e0c7d3615cd4a168308bb7c
https://git.kernel.org/stable/c/21da6d3561f373898349ca7167c9811c020da695
https://git.kernel.org/stable/c/22f935bc86bdfbde04009f05eee191d220cd8c89
https://git.kernel.org/stable/c/39dfc971e42d886e7df01371cd1bef505076d84c
https://git.kernel.org/stable/c/422e565b7889ebfd9c8705a3fc786642afe61fca
https://git.kernel.org/stable/c/64773b3ea09235168a549a195cba43bb867c4a17
https://git.kernel.org/stable/c/67abac27d806e8f9d4226ec1528540cf73af673a
https://git.kernel.org/stable/c/92750bfe7b0d8dbcaf578c091a65eda1c5f9ad38

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?