SB20251230146 - Memory leak in Linux kernel ksmbd
Published: December 30, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251230146
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-2023-54162)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the __put_fd_final() function in fs/ksmbd/vfs_cache.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/11d38f8a0c19763e34d2093b5ecb640e012cb2d2
- https://git.kernel.org/stable/c/6bf555ed8938444466c3d7f3252eb874a518f293
- https://git.kernel.org/stable/c/bfe8372ef2dbdce97f13b21d76e2080ddeef5a79
- https://git.kernel.org/stable/c/d3ca9f7aeba793d74361d88a8800b2f205c9236b
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.145
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3