CVE-2025-37850

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Source
https://cve.org/CVERecord?id=CVE-2025-37850
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-37850.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-37850
Downstream
Related
Published
2025-05-09T06:41:57.784Z
Modified
2026-03-20T12:42:30.666508Z
Summary
pwm: mediatek: Prevent divide-by-zero in pwm_mediatek_config()
Details

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

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

With CONFIGCOMPILETEST && !CONFIGHAVECLK, pwmmediatekconfig() 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 !CONFIGHAVECLK version of clkgetrate() returns zero.

This is presumably just a theoretical problem: COMPILETEST overrides the dependency on RALINK which would select COMMONCLK. 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/CONFIGCLK/CONFIGHAVE_CLK/]

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37850.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
caf065f8fd583b43a3f95d84c8a0a0d07597963b
Fixed
8b9f60725d74b72c238e4437c957d0217746b506
Fixed
e1206d8e1651c9f62e5640b69b14d925b1a0a00a
Fixed
e3cf0c38d3ce754ad63005102fcfeb0b7ff3290b
Fixed
f3e9cf266c2c103cf071e15d7a17e2c699fff3c5
Fixed
8ddbec73ea2598d8414e8f7103241b55cf877010
Fixed
4cb15042b5f3ec0474e91cf379120cc597625dbb
Fixed
c343856ff2689ce0afef823592732fc178ef4aac
Fixed
77fb96dbe350e8a5ae4965ff9f6e7049f3966a6b
Fixed
7ca59947b5fcf94e7ea4029d1bd0f7c41500a161

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-37850.json"