SB2025091644 - Memory leak in Linux kernel ubifs
Published: September 16, 2025 Updated: September 22, 2025
Security Bulletin ID
SB2025091644
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-2023-53227)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the dirty_cow_znode() function 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/011050fc471cd0b32410694facb47bac20e7262b
- https://git.kernel.org/stable/c/10b6c359e374df1120b951768260083ef047d7fb
- https://git.kernel.org/stable/c/122deabfe1428bffe95e2bf364ff8a5059bdf089
- https://git.kernel.org/stable/c/510b80abe8d2d89e4ff21d71f1804ba2e5d3a96b
- https://git.kernel.org/stable/c/5759076fc7c54614084002345a21bc2c578bf4a8
- https://git.kernel.org/stable/c/76c488e8a0e2783c6d8753cb7354a420593e8c30
- https://git.kernel.org/stable/c/9d4768523b092bfb9a9bfa6b1d903b968c8008cf
- https://git.kernel.org/stable/c/bbcf899036eeb98c3a938fb08946c6b52771f71c
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.5