SB20250916377 - Input validation error in Linux kernel block driver
Published: September 16, 2025 Updated: September 22, 2025
Security Bulletin ID
SB20250916377
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-2023-53269)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the ublk_validate_params() and ublk_ctrl_set_params() functions in drivers/block/ublk_drv.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.