CVE-2023-53472

Katalog CVE

CVSS 5.5 · Medium EPSS 0,16%

Kerentanan NULL Pointer Dereference pada linux kernel. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

1 Oktober 2025

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

5.5 (Medium), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-476: NULL Pointer Dereference

EPSS (30 hari)

0,16% peluang dieksploitasi; lebih tinggi dari 4,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/04301da4d87067a989f70ee56942bf9d97cd2a45 patch
• https://git.kernel.org/stable/c/4aae44f65827f0213a7361cf9c32cfe06114473f patch
• https://git.kernel.org/stable/c/523f6268e86552a048975749251184c4e9a4b38f patch
• https://git.kernel.org/stable/c/5e22217c11424ef958ba28d03ff7167b4d7a8914 patch
• https://git.kernel.org/stable/c/a2d9d884e84bfd37892219b1f55847f36d8e9901 patch
• https://git.kernel.org/stable/c/a9a505f5b39d8fff1a55963a5e524c84639e98b2 patch
• https://git.kernel.org/stable/c/abd9b2ee4047ccd980decbf26d61f9637604b1d5 patch
• https://git.kernel.org/stable/c/e3a0ddbaf7f1f9ffc070718b417461ced3268758 patch