SB20251230143 - Memory leak in Linux kernel erofs
Published: December 30, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251230143
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) Memory leak (CVE-ID: CVE-2022-50811)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
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 perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the z_erofs_do_map_blocks() function in fs/erofs/zmap.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/091a8ca572a2e48554427feda78aa503e98c1028
- https://git.kernel.org/stable/c/373b6f350aecf5dca2e7474f0b4ec8cca659f2f0
- https://git.kernel.org/stable/c/d5d188b8f8b38d3d71dd05993874b4fc9284ce95
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2