SB20260425108 - Improper Initialization in Linux kernel pci xe driver
Published: April 25, 2026
Security Bulletin ID
SB20260425108
CSH 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 vulnerability.
1) Improper Initialization (CVE-ID: CVE-2026-31601)
CWE-ID: CWE-665 - Improper Initialization
CVSSv4: 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
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper initialization in xe_vfio_pci_core_device reset handling when issuing reset on VF devices that do not support migration. A local user can write to the reset sysfs attribute to cause a denial of service.
Remediation
Install update from vendor's website.