github - ghsa-9g63-jv3j-6766

ghsa-9g63-jv3j-6766

Vulnerability from github

Published

2024-06-24 15:31

Modified

2024-12-14 21:31

Details

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

fpga: manager: add owner module and take its refcount

The current implementation of the fpga manager assumes that the low-level module registers a driver for the parent device and uses its owner pointer to take the module's refcount. This approach is problematic since it can lead to a null pointer dereference while attempting to get the manager if the parent device does not have a driver.

To address this problem, add a module owner pointer to the fpga_manager struct and use it to take the module's refcount. Modify the functions for registering the manager to take an additional owner module parameter and rename them to avoid conflicts. Use the old function names for helper macros that automatically set the module that registers the manager as the owner. This ensures compatibility with existing low-level control modules and reduces the chances of registering a manager without setting the owner.

Also, update the documentation to keep it consistent with the new interface for registering an fpga manager.

Other changes: opportunistically move put_device() from __fpga_mgr_get() to fpga_mgr_get() and of_fpga_mgr_get() to improve code clarity since the manager device is taken in these functions.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2024-37021"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-06-24T14:15:12Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfpga: manager: add owner module and take its refcount\n\nThe current implementation of the fpga manager assumes that the low-level\nmodule registers a driver for the parent device and uses its owner pointer\nto take the module\u0027s refcount. This approach is problematic since it can\nlead to a null pointer dereference while attempting to get the manager if\nthe parent device does not have a driver.\n\nTo address this problem, add a module owner pointer to the fpga_manager\nstruct and use it to take the module\u0027s refcount. Modify the functions for\nregistering the manager to take an additional owner module parameter and\nrename them to avoid conflicts. Use the old function names for helper\nmacros that automatically set the module that registers the manager as the\nowner. This ensures compatibility with existing low-level control modules\nand reduces the chances of registering a manager without setting the owner.\n\nAlso, update the documentation to keep it consistent with the new interface\nfor registering an fpga manager.\n\nOther changes: opportunistically move put_device() from __fpga_mgr_get() to\nfpga_mgr_get() and of_fpga_mgr_get() to improve code clarity since the\nmanager device is taken in these functions.",
  "id": "GHSA-9g63-jv3j-6766",
  "modified": "2024-12-14T21:31:31Z",
  "published": "2024-06-24T15:31:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-37021"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2da62a139a6221a345db4eb9f4f1c4b0937c89ad"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/304f8032d601d4f9322ca841cd0b573bd1beb158"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4d4d2d4346857bf778fafaa97d6f76bb1663e3c9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/62ac496a01c9337a11362cea427038ba621ca9eb"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

cve-2024-37021

Vulnerability from cvelistv5

Published

2024-06-24 13:56

Modified

2024-12-19 09:03

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: fpga: manager: add owner module and take its refcount The current implementation of the fpga manager assumes that the low-level module registers a driver for the parent device and uses its owner pointer to take the module's refcount. This approach is problematic since it can lead to a null pointer dereference while attempting to get the manager if the parent device does not have a driver. To address this problem, add a module owner pointer to the fpga_manager struct and use it to take the module's refcount. Modify the functions for registering the manager to take an additional owner module parameter and rename them to avoid conflicts. Use the old function names for helper macros that automatically set the module that registers the manager as the owner. This ensures compatibility with existing low-level control modules and reduces the chances of registering a manager without setting the owner. Also, update the documentation to keep it consistent with the new interface for registering an fpga manager. Other changes: opportunistically move put_device() from __fpga_mgr_get() to fpga_mgr_get() and of_fpga_mgr_get() to improve code clarity since the manager device is taken in these functions.

References

▼	URL	Tags
	https://git.kernel.org/stable/c/304f8032d601d4f9322ca841cd0b573bd1beb158
	https://git.kernel.org/stable/c/2da62a139a6221a345db4eb9f4f1c4b0937c89ad
	https://git.kernel.org/stable/c/62ac496a01c9337a11362cea427038ba621ca9eb
	https://git.kernel.org/stable/c/4d4d2d4346857bf778fafaa97d6f76bb1663e3c9

Impacted products

Vendor

Product

Version

▼

Linux

Version: 654ba4cc0f3ed7c0f08bfb39f66059d8c42943ee
Version: 654ba4cc0f3ed7c0f08bfb39f66059d8c42943ee
Version: 654ba4cc0f3ed7c0f08bfb39f66059d8c42943ee
Version: 654ba4cc0f3ed7c0f08bfb39f66059d8c42943ee

Linux

Version: 4.4

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T03:43:50.675Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/2da62a139a6221a345db4eb9f4f1c4b0937c89ad"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/62ac496a01c9337a11362cea427038ba621ca9eb"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/4d4d2d4346857bf778fafaa97d6f76bb1663e3c9"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-37021",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T17:08:30.677079Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-11T17:34:43.261Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "Documentation/driver-api/fpga/fpga-mgr.rst",
            "drivers/fpga/fpga-mgr.c",
            "include/linux/fpga/fpga-mgr.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "304f8032d601d4f9322ca841cd0b573bd1beb158",
              "status": "affected",
              "version": "654ba4cc0f3ed7c0f08bfb39f66059d8c42943ee",
              "versionType": "git"
            },
            {
              "lessThan": "2da62a139a6221a345db4eb9f4f1c4b0937c89ad",
              "status": "affected",
              "version": "654ba4cc0f3ed7c0f08bfb39f66059d8c42943ee",
              "versionType": "git"
            },
            {
              "lessThan": "62ac496a01c9337a11362cea427038ba621ca9eb",
              "status": "affected",
              "version": "654ba4cc0f3ed7c0f08bfb39f66059d8c42943ee",
              "versionType": "git"
            },
            {
              "lessThan": "4d4d2d4346857bf778fafaa97d6f76bb1663e3c9",
              "status": "affected",
              "version": "654ba4cc0f3ed7c0f08bfb39f66059d8c42943ee",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "Documentation/driver-api/fpga/fpga-mgr.rst",
            "drivers/fpga/fpga-mgr.c",
            "include/linux/fpga/fpga-mgr.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.4"
            },
            {
              "lessThan": "4.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.120",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.33",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.9.*",
              "status": "unaffected",
              "version": "6.9.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.10",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfpga: manager: add owner module and take its refcount\n\nThe current implementation of the fpga manager assumes that the low-level\nmodule registers a driver for the parent device and uses its owner pointer\nto take the module\u0027s refcount. This approach is problematic since it can\nlead to a null pointer dereference while attempting to get the manager if\nthe parent device does not have a driver.\n\nTo address this problem, add a module owner pointer to the fpga_manager\nstruct and use it to take the module\u0027s refcount. Modify the functions for\nregistering the manager to take an additional owner module parameter and\nrename them to avoid conflicts. Use the old function names for helper\nmacros that automatically set the module that registers the manager as the\nowner. This ensures compatibility with existing low-level control modules\nand reduces the chances of registering a manager without setting the owner.\n\nAlso, update the documentation to keep it consistent with the new interface\nfor registering an fpga manager.\n\nOther changes: opportunistically move put_device() from __fpga_mgr_get() to\nfpga_mgr_get() and of_fpga_mgr_get() to improve code clarity since the\nmanager device is taken in these functions."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T09:03:46.904Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/304f8032d601d4f9322ca841cd0b573bd1beb158"
        },
        {
          "url": "https://git.kernel.org/stable/c/2da62a139a6221a345db4eb9f4f1c4b0937c89ad"
        },
        {
          "url": "https://git.kernel.org/stable/c/62ac496a01c9337a11362cea427038ba621ca9eb"
        },
        {
          "url": "https://git.kernel.org/stable/c/4d4d2d4346857bf778fafaa97d6f76bb1663e3c9"
        }
      ],
      "title": "fpga: manager: add owner module and take its refcount",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-37021",
    "datePublished": "2024-06-24T13:56:52.091Z",
    "dateReserved": "2024-06-24T13:54:11.044Z",
    "dateUpdated": "2024-12-19T09:03:46.904Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

Action not permitted