CVE-2023-53472

{"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", "lessThan": "a2d9d884e84bfd37892219b1f55847f36d8e9901", "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"}, {"vulnerable": true, "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"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/pwm/pwm-lpc32xx.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "abd9b2ee4047ccd980decbf26d61f9637604b1d5", "status": "affected", "version": "bb4de81eb940e7027f37a6fd3b7ddcb4403deb56", "versionType": "git"}, {"lessThan": "a9a505f5b39d8fff1a55963a5e524c84639e98b2", "status": "affected", "version": "4459118977665f681017e1299933895d54b6e87b", "versionType": "git"}, {"lessThan": "04301da4d87067a989f70ee56942bf9d97cd2a45", "status": "affected", "version": "81e6b51709da162b94e40a445bb60856406beaa1", "versionType": "git"}, {"lessThan": "a2d9d884e84bfd37892219b1f55847f36d8e9901", "status": "affected", "version": "322b70b522abe03cd59712bb47a72eddd835d19d", "versionType": "git"}, {"lessThan": "5e22217c11424ef958ba28d03ff7167b4d7a8914", "status": "affected", "version": "3d2813fb17e5fd0d73c1d1442ca0192bde4af10e", "versionType": "git"}, {"lessThan": "523f6268e86552a048975749251184c4e9a4b38f", "status": "affected", "version": "3d2813fb17e5fd0d73c1d1442ca0192bde4af10e", "versionType": "git"}, {"lessThan": "e3a0ddbaf7f1f9ffc070718b417461ced3268758", "status": "affected", "version": "3d2813fb17e5fd0d73c1d1442ca0192bde4af10e", "versionType": "git"}, {"lessThan": "4aae44f65827f0213a7361cf9c32cfe06114473f", "status": "affected", "version": "3d2813fb17e5fd0d73c1d1442ca0192bde4af10e", "versionType": "git"}, {"status": "affected", "version": "7fc2172ad4e701d3c6e7dcb7b2efd8df71d2417b", "versionType": "git"}, {"status": "affected", "version": "1c90a357cef4219cb436e59cc7463888103e104b", "versionType": "git"}, {"lessThan": "4.14.326", "status": "affected", "version": "4.14.248", "versionType": "semver"}, {"lessThan": "4.19.295", "status": "affected", "version": "4.19.208", "versionType": "semver"}, {"lessThan": "5.4.257", "status": "affected", "version": "5.4.149", "versionType": "semver"}, {"lessThan": "5.10.195", "status": "affected", "version": "5.10.69", "versionType": "semver"}, {"lessThan": "4.10", "status": "affected", "version": "4.9.284", "versionType": "semver"}, {"lessThan": "5.15", "status": "affected", "version": "5.14.8", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/pwm/pwm-lpc32xx.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.15"}, {"lessThan": "5.15", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "4.14.*", "status": "unaffected", "version": "4.14.326", "versionType": "semver"}, {"lessThanOrEqual": "4.19.*", "status": "unaffected", "version": "4.19.295", "versionType": "semver"}, {"lessThanOrEqual": "5.4.*", "status": "unaffected", "version": "5.4.257", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.195", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.132", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.54", "versionType": "semver"}, {"lessThanOrEqual": "6.5.*", "status": "unaffected", "version": "6.5.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.6", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "6D5E2E93-CF7C-4EB8-A897-64BAD08711B7", "versionEndExcluding": "4.10", "versionStartIncluding": "4.9.284", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "416B8F88-942F-4850-9092-1038ECDD429B", "versionEndExcluding": "4.14.326", "versionStartIncluding": "4.14.248", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "B23BA97E-A1DF-414D-8E03-D3657F31B448", "versionEndExcluding": "4.19.295", "versionStartIncluding": "4.19.208", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A6D8239E-B285-44F7-84FE-07F052938EE9", "versionEndExcluding": "5.4.257", "versionStartIncluding": "5.4.149", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "39657E45-4B2D-49C0-84C9-71C3DF7DB55C", "versionEndExcluding": "5.10.195", "versionStartIncluding": "5.10.69", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "BE044518-5B3F-43AB-A0D0-D340B46C2255", "versionEndExcluding": "5.15.132", "versionStartIncluding": "5.14.8", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "7353B9B4-AFFC-45DE-840E-1A7D2B00E7AD", "versionEndExcluding": "6.1.54", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "CA8C8B88-AF36-445D-A228-AD78F3615373", "versionEndExcluding": "6.5.4", "versionStartIncluding": "6.2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "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."}], "id": "CVE-2023-53472", "lastModified": "2026-06-17T06:45:25.083", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-10-01T12:15:49.420", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/04301da4d87067a989f70ee56942bf9d97cd2a45"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4aae44f65827f0213a7361cf9c32cfe06114473f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/523f6268e86552a048975749251184c4e9a4b38f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5e22217c11424ef958ba28d03ff7167b4d7a8914"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a2d9d884e84bfd37892219b1f55847f36d8e9901"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a9a505f5b39d8fff1a55963a5e524c84639e98b2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/abd9b2ee4047ccd980decbf26d61f9637604b1d5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e3a0ddbaf7f1f9ffc070718b417461ced3268758"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: pwm: lpc32xx: Remove handling of PWM channels", "id": "2400764", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2400764"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2023-53472", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:rhivos:1", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat In-Vehicle Operating System 1"}], "public_date": "2025-10-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-53472\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-53472\nhttps://lore.kernel.org/linux-cve-announce/2025100110-CVE-2023-53472-93cb@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-10-02T08:39:43.051720+00:00", "updated": "2025-10-02T08:39:43.051770+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}