SB2025123090 - Memory leak in Linux kernel block
Published: December 30, 2025 Updated: December 31, 2025
Security Bulletin ID
SB2025123090
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-2023-54227)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the blk_mq_realloc_tag_set_tags() function in block/blk-mq.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.