Input validation error in Linux kernel arm64 net

1) Input validation error

EUVDB-ID: #VU109582

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-2025-37963

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

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 build_bhb_mitigation() function in arch/arm64/net/bpf_jit_comp.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/477481c4348268136227348984b6699d6370b685
https://git.kernel.org/stable/c/6e52d043f7dbf1839a24a3fab2b12b0d3839de7a
https://git.kernel.org/stable/c/80251f62028f1ab2e09be5ca3123f84e8b00389a
https://git.kernel.org/stable/c/e5f5100f1c64ac6c72671b2cf6b46542fce93706
https://git.kernel.org/stable/c/f300769ead032513a68e4a02e806393402e626f8

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.