#VU113295 Input validation error in Linux kernel - CVE-2025-38455
Published: July 27, 2025
Vulnerability identifier: #VU113295
Vulnerability risk: Low
CVSSv4.0: 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-2025-38455
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
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 sev_check_source_vcpus() function in arch/x86/kvm/svm/sev.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/8c8e8d4d7544bb783e15078eda8ba2580e192246
- https://git.kernel.org/stable/c/b5725213149597cd9c2b075b87bc4e0f87e906c1
- https://git.kernel.org/stable/c/e0d9a7cf37ca09c513420dc88e0d0e805a4f0820
- https://git.kernel.org/stable/c/ecf371f8b02d5e31b9aa1da7f159f1b2107bdb01
- https://git.kernel.org/stable/c/fd044c99d831e9f837518816c7c366b04014d405