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vuln-cve/data/2023/53xxx/CVE-2023-53472.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2023-53472",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2025-10-01T11:39:39.401Z",
"datePublished": "2025-10-01T11:42:41.951Z",
"dateUpdated": "2026-05-23T15:29:04.344Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-05-23T15:29:04.344Z"
},
"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/pwm/pwm-lpc32xx.c"
],
"versions": [
{
"version": "bb4de81eb940e7027f37a6fd3b7ddcb4403deb56",
"lessThan": "abd9b2ee4047ccd980decbf26d61f9637604b1d5",
"status": "affected",
"versionType": "git"
},
{
"version": "4459118977665f681017e1299933895d54b6e87b",
"lessThan": "a9a505f5b39d8fff1a55963a5e524c84639e98b2",
"status": "affected",
"versionType": "git"
},
{
"version": "81e6b51709da162b94e40a445bb60856406beaa1",
"lessThan": "04301da4d87067a989f70ee56942bf9d97cd2a45",
"status": "affected",
"versionType": "git"
},
{
"version": "322b70b522abe03cd59712bb47a72eddd835d19d",
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"status": "affected",
"versionType": "git"
},
{
"version": "3d2813fb17e5fd0d73c1d1442ca0192bde4af10e",
"lessThan": "5e22217c11424ef958ba28d03ff7167b4d7a8914",
"status": "affected",
"versionType": "git"
},
{
"version": "3d2813fb17e5fd0d73c1d1442ca0192bde4af10e",
"lessThan": "523f6268e86552a048975749251184c4e9a4b38f",
"status": "affected",
"versionType": "git"
},
{
"version": "3d2813fb17e5fd0d73c1d1442ca0192bde4af10e",
"lessThan": "e3a0ddbaf7f1f9ffc070718b417461ced3268758",
"status": "affected",
"versionType": "git"
},
{
"version": "3d2813fb17e5fd0d73c1d1442ca0192bde4af10e",
"lessThan": "4aae44f65827f0213a7361cf9c32cfe06114473f",
"status": "affected",
"versionType": "git"
},
{
"version": "7fc2172ad4e701d3c6e7dcb7b2efd8df71d2417b",
"status": "affected",
"versionType": "git"
},
{
"version": "1c90a357cef4219cb436e59cc7463888103e104b",
"status": "affected",
"versionType": "git"
},
{
"version": "4.14.248",
"lessThan": "4.14.326",
"status": "affected",
"versionType": "semver"
},
{
"version": "4.19.208",
"lessThan": "4.19.295",
"status": "affected",
"versionType": "semver"
},
{
"version": "5.4.149",
"lessThan": "5.4.257",
"status": "affected",
"versionType": "semver"
},
{
"version": "5.10.69",
"lessThan": "5.10.195",
"status": "affected",
"versionType": "semver"
},
{
"version": "4.9.284",
"lessThan": "4.10",
"status": "affected",
"versionType": "semver"
},
{
"version": "5.14.8",
"lessThan": "5.15",
"status": "affected",
"versionType": "semver"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/pwm/pwm-lpc32xx.c"
],
"versions": [
{
"version": "5.15",
"status": "affected"
},
{
"version": "0",
"lessThan": "5.15",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "4.14.326",
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "4.19.295",
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.4.257",
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.10.195",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.132",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.54",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.5.4",
"lessThanOrEqual": "6.5.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.14.248",
"versionEndExcluding": "4.14.326"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.19.208",
"versionEndExcluding": "4.19.295"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.4.149",
"versionEndExcluding": "5.4.257"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.10.69",
"versionEndExcluding": "5.10.195"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.15",
"versionEndExcluding": "5.15.132"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.15",
"versionEndExcluding": "6.1.54"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.15",
"versionEndExcluding": "6.5.4"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.15",
"versionEndExcluding": "6.6"
},
{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.9.284"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.14.8"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/abd9b2ee4047ccd980decbf26d61f9637604b1d5"
},
{
"url": "https://git.kernel.org/stable/c/a9a505f5b39d8fff1a55963a5e524c84639e98b2"
},
{
"url": "https://git.kernel.org/stable/c/04301da4d87067a989f70ee56942bf9d97cd2a45"
},
{
"url": "https://git.kernel.org/stable/c/a2d9d884e84bfd37892219b1f55847f36d8e9901"
},
{
"url": "https://git.kernel.org/stable/c/5e22217c11424ef958ba28d03ff7167b4d7a8914"
},
{
"url": "https://git.kernel.org/stable/c/523f6268e86552a048975749251184c4e9a4b38f"
},
{
"url": "https://git.kernel.org/stable/c/e3a0ddbaf7f1f9ffc070718b417461ced3268758"
},
{
"url": "https://git.kernel.org/stable/c/4aae44f65827f0213a7361cf9c32cfe06114473f"
}
],
"title": "pwm: lpc32xx: Remove handling of PWM channels",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
}
}
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