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
2025-05-09T06:41:57Z
Modified
2026-08-12T03:30:36Z
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 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/]

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"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
4.12.0
Fixed
5.4.293
Type
ECOSYSTEM
Events
Introduced
5.5.0
Fixed
5.10.237
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.181
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.135
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.88
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.24
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.13.12
Type
ECOSYSTEM
Events
Introduced
6.14.0
Fixed
6.14.3

Database specific

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