#VU114279 Input validation error in Linux kernel - CVE-2025-38560
Published: August 20, 2025
Vulnerability identifier: #VU114279
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-2025-38560
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 early_set_pages_state() function in arch/x86/kernel/sev.c, within the setup_cpuid_table() and pvalidate_pages() functions in arch/x86/kernel/sev-shared.c, within the get_cpuflags() function in arch/x86/boot/cpuflags.c, within the __page_state_change() function in arch/x86/boot/compressed/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/1fb873971e23c35c53823c62809a474a92bc3022
- https://git.kernel.org/stable/c/1fec416c03d0a64cc21aa04ce4aa14254b017e6a
- https://git.kernel.org/stable/c/7b306dfa326f70114312b320d083b21fa9481e1e
- https://git.kernel.org/stable/c/a762a4c8d9e768b538b3cc60615361a8cf377de8
- https://git.kernel.org/stable/c/aed15fc08f15dbb15822b2a0b653f67e76aa0fdf
- https://git.kernel.org/stable/c/f92af52e6dbd8d066d77beba451e0230482dc45b