GHSA-XG2M-HPW9-R98W
Vulnerability from github – Published: 2025-05-09 09:33 – Updated: 2025-11-17 15:30
VLAI
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/]
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2025-37850"
],
"database_specific": {
"cwe_ids": [
"CWE-369"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-09T07:16:05Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\npwm: mediatek: Prevent divide-by-zero in pwm_mediatek_config()\n\nWith CONFIG_COMPILE_TEST \u0026\u0026 !CONFIG_HAVE_CLK, pwm_mediatek_config() has a\ndivide-by-zero in the following line:\n\n\tdo_div(resolution, clk_get_rate(pc-\u003eclk_pwms[pwm-\u003ehwpwm]));\n\ndue to the fact that the !CONFIG_HAVE_CLK version of clk_get_rate()\nreturns zero.\n\nThis is presumably just a theoretical problem: COMPILE_TEST overrides\nthe dependency on RALINK which would select COMMON_CLK. Regardless it\u0027s\na good idea to check for the error explicitly to avoid divide-by-zero.\n\nFixes the following warning:\n\n drivers/pwm/pwm-mediatek.o: warning: objtool: .text: unexpected end of section\n\n[ukleinek: s/CONFIG_CLK/CONFIG_HAVE_CLK/]",
"id": "GHSA-xg2m-hpw9-r98w",
"modified": "2025-11-17T15:30:31Z",
"published": "2025-05-09T09:33:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37850"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4cb15042b5f3ec0474e91cf379120cc597625dbb"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/77fb96dbe350e8a5ae4965ff9f6e7049f3966a6b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7ca59947b5fcf94e7ea4029d1bd0f7c41500a161"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8b9f60725d74b72c238e4437c957d0217746b506"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8ddbec73ea2598d8414e8f7103241b55cf877010"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c343856ff2689ce0afef823592732fc178ef4aac"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e1206d8e1651c9f62e5640b69b14d925b1a0a00a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e3cf0c38d3ce754ad63005102fcfeb0b7ff3290b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f3e9cf266c2c103cf071e15d7a17e2c699fff3c5"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
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Nomenclature
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
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