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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2023-53472 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: pwm: lpc32xx: Remove handling of PWM channels Because LPC32xx PWM controllers have only a single output which is registered as the only PWM device/channel per controller, it is known in advance that pwm->hwpwm value is always 0. On basis of this fact simplify the code by removing operations with pwm->hwpwm, there is no controls which require channel number as input. Even though I wasn't aware at the time when I forward ported that patch, this fixes a null pointer dereference as lpc32xx->chip.pwms is NULL before devm_pwmchip_add() is called.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/04301da4d87067a989f70ee56942bf9d97cd2a45 kernel.org Patch 
https://git.kernel.org/stable/c/4aae44f65827f0213a7361cf9c32cfe06114473f kernel.org Patch 
https://git.kernel.org/stable/c/523f6268e86552a048975749251184c4e9a4b38f kernel.org Patch 
https://git.kernel.org/stable/c/5e22217c11424ef958ba28d03ff7167b4d7a8914 kernel.org Patch 
https://git.kernel.org/stable/c/a2d9d884e84bfd37892219b1f55847f36d8e9901 kernel.org Patch 
https://git.kernel.org/stable/c/a9a505f5b39d8fff1a55963a5e524c84639e98b2 kernel.org Patch 
https://git.kernel.org/stable/c/abd9b2ee4047ccd980decbf26d61f9637604b1d5 kernel.org Patch 
https://git.kernel.org/stable/c/e3a0ddbaf7f1f9ffc070718b417461ced3268758 kernel.org Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-476 NULL Pointer Dereference cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2023-53472
NVD Published Date:
10/01/2025
NVD Last Modified:
01/20/2026
Source:
kernel.org