github - ghsa-2g47-jxc2-73xh

GHSA-2G47-JXC2-73XH

Vulnerability from github – Published: 2025-01-21 15:31 – Updated: 2025-09-26 18:31

Details

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

hwmon: (drivetemp) Fix driver producing garbage data when SCSI errors occur

scsi_execute_cmd() function can return both negative (linux codes) and positive (scsi_cmnd result field) error codes.

Currently the driver just passes error codes of scsi_execute_cmd() to hwmon core, which is incorrect because hwmon only checks for negative error codes. This leads to hwmon reporting uninitialized data to userspace in case of SCSI errors (for example if the disk drive was disconnected).

This patch checks scsi_execute_cmd() output and returns -EIO if it's error code is positive.

[groeck: Avoid inline variable declaration for portability]

Severity ?

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2025-21656"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-01-21T13:15:09Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (drivetemp) Fix driver producing garbage data when SCSI errors occur\n\nscsi_execute_cmd() function can return both negative (linux codes) and\npositive (scsi_cmnd result field) error codes.\n\nCurrently the driver just passes error codes of scsi_execute_cmd() to\nhwmon core, which is incorrect because hwmon only checks for negative\nerror codes. This leads to hwmon reporting uninitialized data to\nuserspace in case of SCSI errors (for example if the disk drive was\ndisconnected).\n\nThis patch checks scsi_execute_cmd() output and returns -EIO if it\u0027s\nerror code is positive.\n\n[groeck: Avoid inline variable declaration for portability]",
  "id": "GHSA-2g47-jxc2-73xh",
  "modified": "2025-09-26T18:31:18Z",
  "published": "2025-01-21T15:31:03Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21656"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/42268d885e44af875a6474f7bba519cc6cea6a9d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/53e25b10a28edaf8c2a1d3916fd8929501a50dfc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/82163d63ae7a4c36142cd252388737205bb7e4b9"
    }
  ],
  "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"
    }
  ]
}

CVE-2025-21656 (GCVE-0-2025-21656)

Vulnerability from cvelistv5 – Published: 2025-01-21 12:18 – Updated: 2025-05-04 07:18

Summary

In the Linux kernel, the following vulnerability has been resolved: hwmon: (drivetemp) Fix driver producing garbage data when SCSI errors occur scsi_execute_cmd() function can return both negative (linux codes) and positive (scsi_cmnd result field) error codes. Currently the driver just passes error codes of scsi_execute_cmd() to hwmon core, which is incorrect because hwmon only checks for negative error codes. This leads to hwmon reporting uninitialized data to userspace in case of SCSI errors (for example if the disk drive was disconnected). This patch checks scsi_execute_cmd() output and returns -EIO if it's error code is positive. [groeck: Avoid inline variable declaration for portability]

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/53e25b10a28edaf8c…
	https://git.kernel.org/stable/c/42268d885e44af875…
	https://git.kernel.org/stable/c/82163d63ae7a4c361…

Impacted products

Vendor

Product

Version

Linux

Affected: 5b46903d8bf372e563bf2150d46b87fff197a109 , < 53e25b10a28edaf8c2a1d3916fd8929501a50dfc (git)
Affected: 5b46903d8bf372e563bf2150d46b87fff197a109 , < 42268d885e44af875a6474f7bba519cc6cea6a9d (git)
Affected: 5b46903d8bf372e563bf2150d46b87fff197a109 , < 82163d63ae7a4c36142cd252388737205bb7e4b9 (git)

Linux

Affected: 5.6
Unaffected: 0 , < 5.6 (semver)
Unaffected: 6.6.72 , ≤ 6.6.* (semver)
Unaffected: 6.12.10 , ≤ 6.12.* (semver)
Unaffected: 6.13 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/hwmon/drivetemp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "53e25b10a28edaf8c2a1d3916fd8929501a50dfc",
              "status": "affected",
              "version": "5b46903d8bf372e563bf2150d46b87fff197a109",
              "versionType": "git"
            },
            {
              "lessThan": "42268d885e44af875a6474f7bba519cc6cea6a9d",
              "status": "affected",
              "version": "5b46903d8bf372e563bf2150d46b87fff197a109",
              "versionType": "git"
            },
            {
              "lessThan": "82163d63ae7a4c36142cd252388737205bb7e4b9",
              "status": "affected",
              "version": "5b46903d8bf372e563bf2150d46b87fff197a109",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/hwmon/drivetemp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.6"
            },
            {
              "lessThan": "5.6",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.72",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.13",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.72",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.10",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.13",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (drivetemp) Fix driver producing garbage data when SCSI errors occur\n\nscsi_execute_cmd() function can return both negative (linux codes) and\npositive (scsi_cmnd result field) error codes.\n\nCurrently the driver just passes error codes of scsi_execute_cmd() to\nhwmon core, which is incorrect because hwmon only checks for negative\nerror codes. This leads to hwmon reporting uninitialized data to\nuserspace in case of SCSI errors (for example if the disk drive was\ndisconnected).\n\nThis patch checks scsi_execute_cmd() output and returns -EIO if it\u0027s\nerror code is positive.\n\n[groeck: Avoid inline variable declaration for portability]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T07:18:21.781Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/53e25b10a28edaf8c2a1d3916fd8929501a50dfc"
        },
        {
          "url": "https://git.kernel.org/stable/c/42268d885e44af875a6474f7bba519cc6cea6a9d"
        },
        {
          "url": "https://git.kernel.org/stable/c/82163d63ae7a4c36142cd252388737205bb7e4b9"
        }
      ],
      "title": "hwmon: (drivetemp) Fix driver producing garbage data when SCSI errors occur",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-21656",
    "datePublished": "2025-01-21T12:18:13.222Z",
    "dateReserved": "2024-12-29T08:45:45.729Z",
    "dateUpdated": "2025-05-04T07:18:21.781Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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-2G47-JXC2-73XH

CVE-2025-21656 (GCVE-0-2025-21656)

Tags

Sightings

Nomenclature