CVE-2025-38090 (GCVE-0-2025-38090)

Vulnerability from cvelistv5 – Published: 2025-06-30 07:29 – Updated: 2026-08-05 11:59
VLAI
Title
drivers/rapidio/rio_cm.c: prevent possible heap overwrite
Summary
In the Linux kernel, the following vulnerability has been resolved: drivers/rapidio/rio_cm.c: prevent possible heap overwrite In riocm_cdev_ioctl(RIO_CM_CHAN_SEND) -> cm_chan_msg_send() -> riocm_ch_send() cm_chan_msg_send() checks that userspace didn't send too much data but riocm_ch_send() failed to check that userspace sent sufficient data. The result is that riocm_ch_send() can write to fields in the rio_ch_chan_hdr which were outside the bounds of the space which cm_chan_msg_send() allocated. Address this by teaching riocm_ch_send() to check that the entire rio_ch_chan_hdr was copied in from userspace.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: b6e8d4aa1110306378af0f3472a6b85a1f039a16 , < a8b5ea2e302aa5cd00fc7addd8df53c9bde7b5f6 (git)
Affected: b6e8d4aa1110306378af0f3472a6b85a1f039a16 , < c03ddc183249f03fc7e057e02cae6f89144d0123 (git)
Affected: b6e8d4aa1110306378af0f3472a6b85a1f039a16 , < 58f664614f8c3d6142ab81ae551e466dc6e092e8 (git)
Affected: b6e8d4aa1110306378af0f3472a6b85a1f039a16 , < ecf5ee280b702270afb02f61b299d3dfe3ec7730 (git)
Affected: b6e8d4aa1110306378af0f3472a6b85a1f039a16 , < 1921781ec4a8824bd0c520bf9363e28a880d14ec (git)
Affected: b6e8d4aa1110306378af0f3472a6b85a1f039a16 , < 1cce6ac47f4a2ac1766b8a188dc8c8f6d8df2a53 (git)
Affected: b6e8d4aa1110306378af0f3472a6b85a1f039a16 , < 6d5c6711a55c35ce09b90705546050408d9d4b61 (git)
Affected: b6e8d4aa1110306378af0f3472a6b85a1f039a16 , < 50695153d7ddde3b1696dbf0085be0033bf3ddb3 (git)
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Linux Linux Affected: 4.8
Unaffected: 0 , < 4.8 (semver)
Unaffected: 5.4.295 , ≤ 5.4.* (semver)
Unaffected: 5.10.239 , ≤ 5.10.* (semver)
Unaffected: 5.15.186 , ≤ 5.15.* (semver)
Unaffected: 6.1.142 , ≤ 6.1.* (semver)
Unaffected: 6.6.95 , ≤ 6.6.* (semver)
Unaffected: 6.12.35 , ≤ 6.12.* (semver)
Unaffected: 6.15.4 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)
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          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrivers/rapidio/rio_cm.c: prevent possible heap overwrite\n\nIn\n\nriocm_cdev_ioctl(RIO_CM_CHAN_SEND)\n   -\u003e cm_chan_msg_send()\n      -\u003e riocm_ch_send()\n\ncm_chan_msg_send() checks that userspace didn\u0027t send too much data but\nriocm_ch_send() failed to check that userspace sent sufficient data.  The\nresult is that riocm_ch_send() can write to fields in the rio_ch_chan_hdr\nwhich were outside the bounds of the space which cm_chan_msg_send()\nallocated.\n\nAddress this by teaching riocm_ch_send() to check that the entire\nrio_ch_chan_hdr was copied in from userspace."
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drivers/rapidio/rio_cm.c: impide la posible sobrescritura del mont\u00f3n. En riocm_cdev_ioctl(RIO_CM_CHAN_SEND) -\u0026gt; cm_chan_msg_send() -\u0026gt; riocm_ch_send(), cm_chan_msg_send() comprueba que el espacio de usuario no haya enviado demasiados datos, pero riocm_ch_send() no pudo comprobar que el espacio de usuario enviara datos suficientes. El resultado es que riocm_ch_send() puede escribir en campos del rio_ch_chan_hdr que estaban fuera de los l\u00edmites del espacio que cm_chan_msg_send() asign\u00f3. Solucione esto ense\u00f1\u00e1ndole a riocm_ch_send() que compruebe que todo el rio_ch_chan_hdr se copi\u00f3 desde el espacio de usuario."
          }
        ],
        "id": "CVE-2025-38090",
        "lastModified": "2026-07-30T06:22:50.160",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 7.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 5.9,
              "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
              "type": "Secondary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2025-06-30T08:15:23.707",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/1921781ec4a8824bd0c520bf9363e28a880d14ec"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/1cce6ac47f4a2ac1766b8a188dc8c8f6d8df2a53"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/50695153d7ddde3b1696dbf0085be0033bf3ddb3"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/58f664614f8c3d6142ab81ae551e466dc6e092e8"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/6d5c6711a55c35ce09b90705546050408d9d4b61"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/a8b5ea2e302aa5cd00fc7addd8df53c9bde7b5f6"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/c03ddc183249f03fc7e057e02cae6f89144d0123"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/ecf5ee280b702270afb02f61b299d3dfe3ec7730"
          },
          {
            "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": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-noinfo"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-30T10:26:33+00:00",
      "cve": "CVE-2025-38090",
      "id": "CVE-2025-38090",
      "initial_release_date": "2025-06-30T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: drivers/rapidio/rio_cm.c: prevent possible heap overwrite",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-38090.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-09-23T00:41:35Z",
      "cve": "CVE-2025-38090",
      "id": "CVE-2025-38090",
      "initial_release_date": "2025-06-30T23:30:52Z",
      "product_status:first_fixed": "2",
      "product_status:known_affected": "394",
      "product_status:known_not_affected": "442",
      "product_status:recommended": "472",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-38090",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-38090.json",
      "version": "47"
    }
  }
}



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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

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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.



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.