SB2025072212 - Input validation error in Linux kernel x86 kvm
Published: July 22, 2025
Security Bulletin ID
SB2025072212
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2025-38351)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the kvm_hv_vcpu_flush_tlb() function in arch/x86/kvm/hyperv.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.