SB20251001199 - Input validation error in Linux kernel pwm driver
Published: October 1, 2025 Updated: October 27, 2025
Security Bulletin ID
SB20251001199
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) Input validation error (CVE-ID: CVE-2023-53472)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the lpc32xx_pwm_config(), lpc32xx_pwm_enable(), lpc32xx_pwm_disable() and lpc32xx_pwm_probe() functions in drivers/pwm/pwm-lpc32xx.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/04301da4d87067a989f70ee56942bf9d97cd2a45
- https://git.kernel.org/stable/c/4aae44f65827f0213a7361cf9c32cfe06114473f
- https://git.kernel.org/stable/c/523f6268e86552a048975749251184c4e9a4b38f
- https://git.kernel.org/stable/c/5e22217c11424ef958ba28d03ff7167b4d7a8914
- https://git.kernel.org/stable/c/a2d9d884e84bfd37892219b1f55847f36d8e9901
- https://git.kernel.org/stable/c/a9a505f5b39d8fff1a55963a5e524c84639e98b2
- https://git.kernel.org/stable/c/abd9b2ee4047ccd980decbf26d61f9637604b1d5
- https://git.kernel.org/stable/c/e3a0ddbaf7f1f9ffc070718b417461ced3268758
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.4