SB20251230133 - Memory leak in Linux kernel auxdisplay driver
Published: December 30, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251230133
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-2022-50830)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the hd44780_probe() function in drivers/auxdisplay/hd44780.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/5d407911e605702ffcc0e97a6db546592ab27dd0
- https://git.kernel.org/stable/c/6cd37f8232f5e169a723e1d5fbe3b2139c2ef763
- https://git.kernel.org/stable/c/8311961a1724bfc64390c539dedc31e067a80315
- https://git.kernel.org/stable/c/ddf75a86aba2cfb7ec4497e8692b60c8c8fe0ee7
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.100
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.18
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3