GHSA-FJ76-9588-M48W
Vulnerability from github – Published: 2025-07-28 12:30 – Updated: 2026-01-07 18:30
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
comedi: das6402: Fix bit shift out of bounds
When checking for a supported IRQ number, the following test is used:
/* IRQs 2,3,5,6,7, 10,11,15 are valid for "enhanced" mode */
if ((1 << it->options[1]) & 0x8cec) {
However, it->options[i] is an unchecked int value from userspace, so
the shift amount could be negative or out of bounds. Fix the test by
requiring it->options[1] to be within bounds before proceeding with
the original test. Valid it->options[1] values that select the IRQ
will be in the range [1,15]. The value 0 explicitly disables the use of
interrupts.
Severity
7.1 (High)
{
"affected": [],
"aliases": [
"CVE-2025-38482"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-28T12:15:30Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncomedi: das6402: Fix bit shift out of bounds\n\nWhen checking for a supported IRQ number, the following test is used:\n\n\t/* IRQs 2,3,5,6,7, 10,11,15 are valid for \"enhanced\" mode */\n\tif ((1 \u003c\u003c it-\u003eoptions[1]) \u0026 0x8cec) {\n\nHowever, `it-\u003eoptions[i]` is an unchecked `int` value from userspace, so\nthe shift amount could be negative or out of bounds. Fix the test by\nrequiring `it-\u003eoptions[1]` to be within bounds before proceeding with\nthe original test. Valid `it-\u003eoptions[1]` values that select the IRQ\nwill be in the range [1,15]. The value 0 explicitly disables the use of\ninterrupts.",
"id": "GHSA-fj76-9588-m48w",
"modified": "2026-01-07T18:30:18Z",
"published": "2025-07-28T12:30:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38482"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3eab654f5d199ecd45403c6588cda63e491fcfca"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4a3c18cde02e35aba87e0ad5672b3e1c72dda5a4"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/70f2b28b5243df557f51c054c20058ae207baaac"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/73f34d609397805c20d6b2ef5c07a4cbf7c4d63a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8a3637027ceeba4ca5e500b23cb7d24c25592513"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a15e9c175f783298c4ee48146be6841335400406"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a18a42e77545afcacd6a2b8d9fc16191b87454df"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/de8da1063cce9234d55c8270d9bdf4cf84411c80"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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 |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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