ghsa-2g47-jxc2-73xh
Vulnerability from github
Published
2025-01-21 15:31
Modified
2025-01-21 15:31
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]

Show details on source website

To clipboard 

{
  "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": null
  },
  "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": "2025-01-21T15:31:03Z",
  "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": []
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.