pwm: lpc32xx: Remove handling of PWM channels (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.16 % · percentile 5 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Analyzed
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.
Weaknesses (CWE)
- CWE-476 — NULL Pointer Dereference
References
- https://git.kernel.org/stable/c/abd9b2ee4047ccd980decbf26d61f9637604b1d5
- https://git.kernel.org/stable/c/a9a505f5b39d8fff1a55963a5e524c84639e98b2
- https://git.kernel.org/stable/c/04301da4d87067a989f70ee56942bf9d97cd2a45
- https://git.kernel.org/stable/c/a2d9d884e84bfd37892219b1f55847f36d8e9901
- https://git.kernel.org/stable/c/5e22217c11424ef958ba28d03ff7167b4d7a8914
- https://git.kernel.org/stable/c/523f6268e86552a048975749251184c4e9a4b38f
- https://git.kernel.org/stable/c/e3a0ddbaf7f1f9ffc070718b417461ced3268758
- https://git.kernel.org/stable/c/4aae44f65827f0213a7361cf9c32cfe06114473f
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2025-32824
- GCVE · GCVE-0-2023-53472
CERT-FR advisories
- CERTFR-2025-AVI-1032 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-1009 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0921 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0895 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.9.284 < 4.10cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.14.248 < 4.14.326cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.19.208 < 4.19.295cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.4.149 < 5.4.257cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.10.69 < 5.10.195cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.14.8 < 5.15.132cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 6.1.54cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.2 < 6.5.4
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected bb4de81eb940e7027f37a6fd3b7ddcb4403deb56 < abd9b2ee4047ccd980decbf26d61f9637604b1d5 ; affected 4459118977665f681017e1299933895d54b6e87b < a9a505f5b39d8fff1a55963a5e524c84639e98b2 ; affected 81e6b51709da162b94e40a445bb60856406beaa1 < 04301da4d87067a989f70ee56942bf9d97cd2a45 ; affected 322b70b522abe03cd59712bb47a72eddd835d19d < a2d9d884e84bfd37892219b1f55847f36d8e9901 ; affected 3d2813fb17e5fd0d73c1d1442ca0192bde4af10e < 5e22217c11424ef958ba28d03ff7167b4d7a8914 ; affected 3d2813fb17e5fd0d73c1d1442ca0192bde4af10e < 523f6268e86552a048975749251184c4e9a4b38f |
| Linux · Linux | affected 5.15 ; unaffected 0 < 5.15 ; unaffected 4.14.326 ≤ 4.14.* ; unaffected 4.19.295 ≤ 4.19.* ; unaffected 5.4.257 ≤ 5.4.* ; unaffected 5.10.195 ≤ 5.10.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |