SB20251230115 - Memory leak in Linux kernel nfs
Published: December 30, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251230115
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-2022-50853)
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 _nfs4_discover_trunking() function in fs/nfs/nfs4proc.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/b247a9828f6607d41189fa6c2a3be754d33cae86
- https://git.kernel.org/stable/c/c6aca4c7ba8f6d40a0cfeeb09160dd8efdf97c64
- https://git.kernel.org/stable/c/dfad5d5e7511933c2ae3d12a8131840074c5a73d
- https://git.kernel.org/stable/c/e83458fce080dc23c25353a1af90bfecf79c7369
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.86
- 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