{"cve":"CVE-2023-53472","nvd":{"published":"2025-10-01T12:15:49.420","modified":"2026-06-17T06:45:25.083","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\npwm: lpc32xx: Remove handling of PWM channels\n\nBecause LPC32xx PWM controllers have only a single output which is\nregistered as the only PWM device/channel per controller, it is known in\nadvance that pwm->hwpwm value is always 0. On basis of this fact\nsimplify the code by removing operations with pwm->hwpwm, there is no\ncontrols which require channel number as input.\n\nEven though I wasn't aware at the time when I forward ported that patch,\nthis fixes a null pointer dereference as lpc32xx->chip.pwms is NULL\nbefore devm_pwmchip_add() is called.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-476"],"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"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:11:26.888974865+00:00"},"epss":{"cve":"CVE-2023-53472","score":0.0016,"percentile":0.05118,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}