SB20251028143 - Input validation error in Linux kernel vhost driver
Published: October 28, 2025
Security Bulletin ID
SB20251028143
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-2025-40051)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the copy_from_iotlb() function in drivers/vhost/vringh.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/78dc7362662fedaa1928fb8e4f27401c8322905d
- https://git.kernel.org/stable/c/82a8d0fda55b35361ee7f35b54fa2b66d7847d2b
- https://git.kernel.org/stable/c/baa37b1c7e29546f79c39bef0d18c4edc9f39bb1
- https://git.kernel.org/stable/c/cfa0654402c06d086201a9ff167eb95da5844fc3
- https://git.kernel.org/stable/c/db042925a5ab7a550b710addeadbf6f72e3a8a4b