5.5

CVE-2025-37850

pwm: mediatek: Prevent divide-by-zero in pwm_mediatek_config()

In the Linux kernel, the following vulnerability has been resolved:

pwm: mediatek: Prevent divide-by-zero in pwm_mediatek_config()

With CONFIG_COMPILE_TEST && !CONFIG_HAVE_CLK, pwm_mediatek_config() has a
divide-by-zero in the following line:

	do_div(resolution, clk_get_rate(pc->clk_pwms[pwm->hwpwm]));

due to the fact that the !CONFIG_HAVE_CLK version of clk_get_rate()
returns zero.

This is presumably just a theoretical problem: COMPILE_TEST overrides
the dependency on RALINK which would select COMMON_CLK.  Regardless it's
a good idea to check for the error explicitly to avoid divide-by-zero.

Fixes the following warning:

  drivers/pwm/pwm-mediatek.o: warning: objtool: .text: unexpected end of section

[ukleinek: s/CONFIG_CLK/CONFIG_HAVE_CLK/]
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 4.12 < 5.4.293
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.237
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.181
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.135
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.88
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.24
Linux ≫ Linux Kernel Version >= 6.13 < 6.13.12
Linux ≫ Linux Kernel Version >= 6.14 < 6.14.3
Linux ≫ Linux Kernel Version6.15 Updaterc1
Debian ≫ Debian Linux Version11.0
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.24% 0.152
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-369 Divide By Zero

The product divides a value by zero.

https://git.kernel.org/stable/c/8b9f60725d74b72c238e4437c957d0217746b506
Patch
https://git.kernel.org/stable/c/e1206d8e1651c9f62e5640b69b14d925b1a0a00a
Patch
https://git.kernel.org/stable/c/e3cf0c38d3ce754ad63005102fcfeb0b7ff3290b
Patch
https://git.kernel.org/stable/c/f3e9cf266c2c103cf071e15d7a17e2c699fff3c5
Patch
https://git.kernel.org/stable/c/8ddbec73ea2598d8414e8f7103241b55cf877010
Patch
https://git.kernel.org/stable/c/4cb15042b5f3ec0474e91cf379120cc597625dbb
Patch
https://git.kernel.org/stable/c/c343856ff2689ce0afef823592732fc178ef4aac
Patch
https://git.kernel.org/stable/c/77fb96dbe350e8a5ae4965ff9f6e7049f3966a6b
Patch
https://git.kernel.org/stable/c/7ca59947b5fcf94e7ea4029d1bd0f7c41500a161
Patch
https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
Mailing List
https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
Mailing List