SB2026011412 - Memory leak in Linux kernel block driver
Published: January 14, 2026
Security Bulletin ID
SB2026011412
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) Memory leak (CVE-ID: CVE-2025-71070)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the ublk_check_and_reset_active_ref() function in drivers/block/ublk_drv.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.