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/]

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

No data.

No data.

No data.

References
Link Providers
https://git.kernel.org/stable/c/4cb15042b5f3ec0474e91cf379120cc597625dbb cve-icon cve-icon
https://git.kernel.org/stable/c/77fb96dbe350e8a5ae4965ff9f6e7049f3966a6b cve-icon cve-icon
https://git.kernel.org/stable/c/7ca59947b5fcf94e7ea4029d1bd0f7c41500a161 cve-icon cve-icon
https://git.kernel.org/stable/c/8b9f60725d74b72c238e4437c957d0217746b506 cve-icon cve-icon
https://git.kernel.org/stable/c/8ddbec73ea2598d8414e8f7103241b55cf877010 cve-icon cve-icon
https://git.kernel.org/stable/c/c343856ff2689ce0afef823592732fc178ef4aac cve-icon cve-icon
https://git.kernel.org/stable/c/e1206d8e1651c9f62e5640b69b14d925b1a0a00a cve-icon cve-icon
https://git.kernel.org/stable/c/e3cf0c38d3ce754ad63005102fcfeb0b7ff3290b cve-icon cve-icon
https://git.kernel.org/stable/c/f3e9cf266c2c103cf071e15d7a17e2c699fff3c5 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025050919-CVE-2025-37850-80a5@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-37850 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-37850 cve-icon
History

Sat, 10 May 2025 02:30:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate

Fri, 09 May 2025 07:00:00 +0000

Type Values Removed Values Added
Description 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/]
Title pwm: mediatek: Prevent divide-by-zero in pwm_mediatek_config()
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-05-09T06:41:57.784Z

Updated: 2025-05-26T05:22:15.965Z

Reserved: 2025-04-16T04:51:23.954Z

Link: CVE-2025-37850

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-05-09T07:16:05.887

Modified: 2025-05-12T17:32:52.810

Link: CVE-2025-37850

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-05-09T00:00:00Z

Links: CVE-2025-37850 - Bugzilla