SB20251226279 - Improper error handling in Linux kernel tty serial driver
Published: December 26, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251226279
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) Improper error handling (CVE-ID: CVE-2023-54118)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper error handling within the sc16is7xx_probe() function in drivers/tty/serial/sc16is7xx.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/17b96b5c19bec791b433890549e44ca523dc82aa
- https://git.kernel.org/stable/c/49b326ce8a686428d8cbb82ed74fc88ed3f95a51
- https://git.kernel.org/stable/c/b71ff206707855ce73c04794c76f7b678b2d4f72
- https://git.kernel.org/stable/c/c8f71b49ee4d28930c4a6798d1969fa91dc4ef3e
- https://git.kernel.org/stable/c/f57c2164d082a36d177ab7fbf54c18970df89c22
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.18