CVE-2025-38482 (GCVE-0-2025-38482)

Vulnerability from cvelistv5 – Published: 2025-07-28 11:21 – Updated: 2026-05-11 21:28
VLAI
Title
comedi: das6402: Fix bit shift out of bounds
Summary
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)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6637 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 79e5e6addbb18bf56075f0ff552094a28636dd03 , < a15e9c175f783298c4ee48146be6841335400406 (git)
Affected: 79e5e6addbb18bf56075f0ff552094a28636dd03 , < de8da1063cce9234d55c8270d9bdf4cf84411c80 (git)
Affected: 79e5e6addbb18bf56075f0ff552094a28636dd03 , < 73f34d609397805c20d6b2ef5c07a4cbf7c4d63a (git)
Affected: 79e5e6addbb18bf56075f0ff552094a28636dd03 , < a18a42e77545afcacd6a2b8d9fc16191b87454df (git)
Affected: 79e5e6addbb18bf56075f0ff552094a28636dd03 , < 8a3637027ceeba4ca5e500b23cb7d24c25592513 (git)
Affected: 79e5e6addbb18bf56075f0ff552094a28636dd03 , < 3eab654f5d199ecd45403c6588cda63e491fcfca (git)
Affected: 79e5e6addbb18bf56075f0ff552094a28636dd03 , < 4a3c18cde02e35aba87e0ad5672b3e1c72dda5a4 (git)
Affected: 79e5e6addbb18bf56075f0ff552094a28636dd03 , < 70f2b28b5243df557f51c054c20058ae207baaac (git)
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Linux Linux Affected: 3.15
Unaffected: 0 , < 3.15 (semver)
Unaffected: 5.4.297 , ≤ 5.4.* (semver)
Unaffected: 5.10.241 , ≤ 5.10.* (semver)
Unaffected: 5.15.190 , ≤ 5.15.* (semver)
Unaffected: 6.1.147 , ≤ 6.1.* (semver)
Unaffected: 6.6.100 , ≤ 6.6.* (semver)
Unaffected: 6.12.40 , ≤ 6.12.* (semver)
Unaffected: 6.15.8 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: comedi: das6402: Corregir desplazamiento de bits fuera de los l\u00edmites Al comprobar un n\u00famero de IRQ compatible, se utiliza la siguiente prueba: /* Las IRQ 2, 3, 5, 6, 7, 10, 11, 15 son v\u00e1lidas para el modo \"enhanced\" */ if ((1 \u0026lt;\u0026lt; it-\u0026gt;options[1]) \u0026amp; 0x8cec) { Sin embargo, `it-\u0026gt;options[i]` es un valor `int` sin comprobar del espacio de usuario, por lo que la cantidad de desplazamiento podr\u00eda ser negativa o estar fuera de los l\u00edmites. Corrija la prueba exigiendo que `it-\u0026gt;options[1]` est\u00e9 dentro de los l\u00edmites antes de continuar con la prueba original. Los valores v\u00e1lidos de `it-\u0026gt;options[1]` que seleccionan la IRQ estar\u00e1n en el rango [1, 15]. El valor 0 deshabilita expl\u00edcitamente el uso de interrupciones."
          }
        ],
        "id": "CVE-2025-38482",
        "lastModified": "2026-06-17T09:16:57.173",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 7.1,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 5.2,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2025-07-28T12:15:30.117",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/3eab654f5d199ecd45403c6588cda63e491fcfca"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/4a3c18cde02e35aba87e0ad5672b3e1c72dda5a4"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/70f2b28b5243df557f51c054c20058ae207baaac"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/73f34d609397805c20d6b2ef5c07a4cbf7c4d63a"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/8a3637027ceeba4ca5e500b23cb7d24c25592513"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/a15e9c175f783298c4ee48146be6841335400406"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/a18a42e77545afcacd6a2b8d9fc16191b87454df"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/de8da1063cce9234d55c8270d9bdf4cf84411c80"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-125"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-30T10:22:33+00:00",
      "cve": "CVE-2025-38482",
      "id": "CVE-2025-38482",
      "initial_release_date": "2025-07-28T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: comedi: das6402: Fix bit shift out of bounds",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-38482.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-11-05T01:39:24Z",
      "cve": "CVE-2025-38482",
      "id": "CVE-2025-38482",
      "initial_release_date": "2025-07-28T23:22:41Z",
      "product_status:known_affected": "729",
      "product_status:known_not_affected": "49",
      "product_status:recommended": "503",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-38482",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/2025/cve-2025-38482.json",
      "version": "52"
    }
  }
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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