github - ghsa-mr5c-58ff-m852

GHSA-MR5C-58FF-M852

Vulnerability from github – Published: 2025-12-23 15:30 – Updated: 2025-12-23 15:30

Details

In the Linux kernel, the following vulnerability has been resolved:

can: gs_usb: gs_usb_receive_bulk_callback(): check actual_length before accessing header

The driver expects to receive a struct gs_host_frame in gs_usb_receive_bulk_callback().

Use struct_group to describe the header of the struct gs_host_frame and check that we have at least received the header before accessing any members of it.

To resubmit the URB, do not dereference the pointer chain "dev->parent->hf_size_rx" but use "parent->hf_size_rx" instead. Since "urb->context" contains "parent", it is always defined, while "dev" is not defined if the URB it too short.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2025-68343"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-23T14:16:40Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: gs_usb: gs_usb_receive_bulk_callback(): check actual_length before accessing header\n\nThe driver expects to receive a struct gs_host_frame in\ngs_usb_receive_bulk_callback().\n\nUse struct_group to describe the header of the struct gs_host_frame and\ncheck that we have at least received the header before accessing any\nmembers of it.\n\nTo resubmit the URB, do not dereference the pointer chain\n\"dev-\u003eparent-\u003ehf_size_rx\" but use \"parent-\u003ehf_size_rx\" instead. Since\n\"urb-\u003econtext\" contains \"parent\", it is always defined, while \"dev\" is not\ndefined if the URB it too short.",
  "id": "GHSA-mr5c-58ff-m852",
  "modified": "2025-12-23T15:30:40Z",
  "published": "2025-12-23T15:30:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68343"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/18cbce43363c9f84b90a92d57df341155eee0697"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3433680b759646efcacc64fe36aa2e51ae34b8f0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/616eee3e895b8ca0028163fcb1dce5e3e9dea322"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6fe9f3279f7d2518439a7962c5870c6e9ecbadcf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f31693dc3a584c0ad3937e857b59dbc1a7ed2b87"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2025-68343 (GCVE-0-2025-68343)

Vulnerability from cvelistv5 – Published: 2025-12-23 13:58 – Updated: 2025-12-23 13:58

Title

can: gs_usb: gs_usb_receive_bulk_callback(): check actual_length before accessing header

Summary

In the Linux kernel, the following vulnerability has been resolved: can: gs_usb: gs_usb_receive_bulk_callback(): check actual_length before accessing header The driver expects to receive a struct gs_host_frame in gs_usb_receive_bulk_callback(). Use struct_group to describe the header of the struct gs_host_frame and check that we have at least received the header before accessing any members of it. To resubmit the URB, do not dereference the pointer chain "dev->parent->hf_size_rx" but use "parent->hf_size_rx" instead. Since "urb->context" contains "parent", it is always defined, while "dev" is not defined if the URB it too short.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/18cbce43363c9f84b…
	https://git.kernel.org/stable/c/3433680b759646efc…
	https://git.kernel.org/stable/c/616eee3e895b8ca00…
	https://git.kernel.org/stable/c/f31693dc3a584c0ad…
	https://git.kernel.org/stable/c/6fe9f3279f7d25184…

Impacted products

Vendor

Product

Version

Linux

Affected: d08e973a77d128b25e01a08c34d89593fdf222da , < 18cbce43363c9f84b90a92d57df341155eee0697 (git)
Affected: d08e973a77d128b25e01a08c34d89593fdf222da , < 3433680b759646efcacc64fe36aa2e51ae34b8f0 (git)
Affected: d08e973a77d128b25e01a08c34d89593fdf222da , < 616eee3e895b8ca0028163fcb1dce5e3e9dea322 (git)
Affected: d08e973a77d128b25e01a08c34d89593fdf222da , < f31693dc3a584c0ad3937e857b59dbc1a7ed2b87 (git)
Affected: d08e973a77d128b25e01a08c34d89593fdf222da , < 6fe9f3279f7d2518439a7962c5870c6e9ecbadcf (git)

Linux

Affected: 3.16
Unaffected: 0 , < 3.16 (semver)
Unaffected: 6.1.159 , ≤ 6.1.* (semver)
Unaffected: 6.6.119 , ≤ 6.6.* (semver)
Unaffected: 6.12.61 , ≤ 6.12.* (semver)
Unaffected: 6.17.11 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/can/usb/gs_usb.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "18cbce43363c9f84b90a92d57df341155eee0697",
              "status": "affected",
              "version": "d08e973a77d128b25e01a08c34d89593fdf222da",
              "versionType": "git"
            },
            {
              "lessThan": "3433680b759646efcacc64fe36aa2e51ae34b8f0",
              "status": "affected",
              "version": "d08e973a77d128b25e01a08c34d89593fdf222da",
              "versionType": "git"
            },
            {
              "lessThan": "616eee3e895b8ca0028163fcb1dce5e3e9dea322",
              "status": "affected",
              "version": "d08e973a77d128b25e01a08c34d89593fdf222da",
              "versionType": "git"
            },
            {
              "lessThan": "f31693dc3a584c0ad3937e857b59dbc1a7ed2b87",
              "status": "affected",
              "version": "d08e973a77d128b25e01a08c34d89593fdf222da",
              "versionType": "git"
            },
            {
              "lessThan": "6fe9f3279f7d2518439a7962c5870c6e9ecbadcf",
              "status": "affected",
              "version": "d08e973a77d128b25e01a08c34d89593fdf222da",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/can/usb/gs_usb.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.16"
            },
            {
              "lessThan": "3.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.159",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.119",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.61",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.159",
                  "versionStartIncluding": "3.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.119",
                  "versionStartIncluding": "3.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.61",
                  "versionStartIncluding": "3.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17.11",
                  "versionStartIncluding": "3.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18",
                  "versionStartIncluding": "3.16",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: gs_usb: gs_usb_receive_bulk_callback(): check actual_length before accessing header\n\nThe driver expects to receive a struct gs_host_frame in\ngs_usb_receive_bulk_callback().\n\nUse struct_group to describe the header of the struct gs_host_frame and\ncheck that we have at least received the header before accessing any\nmembers of it.\n\nTo resubmit the URB, do not dereference the pointer chain\n\"dev-\u003eparent-\u003ehf_size_rx\" but use \"parent-\u003ehf_size_rx\" instead. Since\n\"urb-\u003econtext\" contains \"parent\", it is always defined, while \"dev\" is not\ndefined if the URB it too short."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-23T13:58:28.411Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/18cbce43363c9f84b90a92d57df341155eee0697"
        },
        {
          "url": "https://git.kernel.org/stable/c/3433680b759646efcacc64fe36aa2e51ae34b8f0"
        },
        {
          "url": "https://git.kernel.org/stable/c/616eee3e895b8ca0028163fcb1dce5e3e9dea322"
        },
        {
          "url": "https://git.kernel.org/stable/c/f31693dc3a584c0ad3937e857b59dbc1a7ed2b87"
        },
        {
          "url": "https://git.kernel.org/stable/c/6fe9f3279f7d2518439a7962c5870c6e9ecbadcf"
        }
      ],
      "title": "can: gs_usb: gs_usb_receive_bulk_callback(): check actual_length before accessing header",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-68343",
    "datePublished": "2025-12-23T13:58:28.411Z",
    "dateReserved": "2025-12-16T14:48:05.298Z",
    "dateUpdated": "2025-12-23T13:58:28.411Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-MR5C-58FF-M852

CVE-2025-68343 (GCVE-0-2025-68343)

Tags

Sightings

Nomenclature