SB20251001171 - Memory leak in Linux kernel cifs
Published: October 1, 2025 Updated: October 27, 2025
Security Bulletin ID
SB20251001171
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-2022-50460)
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 cifs_flock() function in fs/cifs/file.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/2d08311aa3056a84bfdc09bc47777de6a9b16c30
- https://git.kernel.org/stable/c/575e079c782b9862ec2626403922d041a42e6ed6
- https://git.kernel.org/stable/c/8905d13b9ede4caa88c577faed832d6c7383f4fb
- https://git.kernel.org/stable/c/f8c9b4a963fec5d0e37e3e8522bb19b0c28e1a73
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.6