SB2025122647 - Memory leak in Linux kernel ubifs
Published: December 26, 2025 Updated: December 31, 2025
Security Bulletin ID
SB2025122647
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-2023-54050)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the copy_znode(), add_idx_dirt() and dirty_cow_znode() functions in fs/ubifs/tnc.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/3ae75f82c33fa1b4ca2006b55c84f4ef4a428d4d
- https://git.kernel.org/stable/c/66e9f2fb3e753f820bec2a98e8c6387029988320
- https://git.kernel.org/stable/c/6f2eee5457bc48b0426dedfd78cdbdea241a6edb
- https://git.kernel.org/stable/c/79079cebbeed624b9d01cfcf1e3254ae1a1f6e14
- https://git.kernel.org/stable/c/a6da0ab9847779e05a7416c7a98148b549de69ef
- https://git.kernel.org/stable/c/b5fda08ef213352ac2df7447611eb4d383cce929
- https://git.kernel.org/stable/c/cc29c7216d7f057eb0613b97dc38c7e1962a88d2
- https://git.kernel.org/stable/c/ef9aac603659e9ffe7d69ae16e3f0fc0991a965b
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.28