Vulnerability-Lookup

CVE-2021-47101 (GCVE-0-2021-47101)

Vulnerability from cvelistv5 – Published: 2024-03-04 18:10 – Updated: 2026-05-11 13:48

Title

asix: fix uninit-value in asix_mdio_read()

Summary

In the Linux kernel, the following vulnerability has been resolved: asix: fix uninit-value in asix_mdio_read() asix_read_cmd() may read less than sizeof(smsr) bytes and in this case smsr will be uninitialized. Fail log: BUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] BUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497 BUG: KMSAN: uninit-value in asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497 asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497 asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-03-04 19:39 UTC

Assigner

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/d259f621c85949f30…
https://git.kernel.org/stable/c/8035b1a2a37a29d8c…

Impacted products

2 products

Vendor	Product	Version	CPE status
Linux	Linux	Affected: d9fe64e511144c1ee7d7555b4111f09dde9692ef , < d259f621c85949f30cc578cac813b82bb5169f56 (git) Affected: d9fe64e511144c1ee7d7555b4111f09dde9692ef , < 8035b1a2a37a29d8c717ef84fca8fe7278bc9f03 (git)	guessed
Linux	Linux	Affected: 4.9 Unaffected: 0 , < 4.9 (semver) Unaffected: 5.15.12 , ≤ 5.15.* (semver) Unaffected: 5.16 , ≤ * (original_commit_for_fix)	guessed

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FKIE_CVE-2021-47101

Vulnerability from fkie_nvd - Published: 2024-03-04 18:15 - Updated: 2026-06-17 04:16

Severity

7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Summary

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/8035b1a2a37a29d8c717ef84fca8fe7278bc9f03	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d259f621c85949f30cc578cac813b82bb5169f56	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/8035b1a2a37a29d8c717ef84fca8fe7278bc9f03	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/d259f621c85949f30cc578cac813b82bb5169f56	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	5.16
linux	linux_kernel	5.16
linux	linux_kernel	5.16
linux	linux_kernel	5.16
linux	linux_kernel	5.16
linux	linux_kernel	5.16

JSON

To clipboard

{
  "affected": [
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      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/usb/asix_common.c"
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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              "versionType": "git"
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          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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            },
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              "version": "0",
              "versionType": "semver"
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              "versionType": "semver"
            },
            {
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              "version": "5.16",
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            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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  "descriptions": [
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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nasix: fix uninit-value in asix_mdio_read()\n\nasix_read_cmd() may read less than sizeof(smsr) bytes and in this case\nsmsr will be uninitialized.\n\nFail log:\nBUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline]\nBUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497\nBUG: KMSAN: uninit-value in asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497\n asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline]\n asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497\n asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: asix: corrige el valor uninit en asix_mdio_read() asix_read_cmd() puede leer menos que sizeof(smsr) bytes y en este caso smsr no estar\u00e1 inicializado. Registro de errores: ERROR: KMSAN: valor uninit en asix_check_host_enable drivers/net/usb/asix_common.c:82 [en l\u00ednea] ERROR: KMSAN: valor uninit en asix_check_host_enable drivers/net/usb/asix_common.c:82 controladores [en l\u00ednea] /net/usb/asix_common.c:497 ERROR: KMSAN: valor uninit en asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497 asix_check_host_enable drivers/net/ usb/asix_common.c:82 [en l\u00ednea] controladores asix_check_host_enable/net/usb/asix_common.c:82 [en l\u00ednea] controladores/net/usb/asix_common.c:497 controladores asix_mdio_read+0x3c1/0xb00/net/usb/asix_common.c :497 controladores/net/usb/asix_common.c:497"
    }
  ],
  "id": "CVE-2021-47101",
  "lastModified": "2026-06-17T04:16:29.097",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
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            }
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          "timestamp": "2024-03-04T19:39:32.875993Z",
          "version": "2.0.3"
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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          "lang": "en",
          "value": "CWE-908"
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}

GHSA-72GM-6QCQ-3XMP

Vulnerability from github – Published: 2024-03-04 18:30 – Updated: 2025-02-03 15:31

Details

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

asix: fix uninit-value in asix_mdio_read()

asix_read_cmd() may read less than sizeof(smsr) bytes and in this case smsr will be uninitialized.

Fail log: BUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] BUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497 BUG: KMSAN: uninit-value in asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497 asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497 asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497

Severity

7.1 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2021-47101"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-908"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-03-04T18:15:08Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nasix: fix uninit-value in asix_mdio_read()\n\nasix_read_cmd() may read less than sizeof(smsr) bytes and in this case\nsmsr will be uninitialized.\n\nFail log:\nBUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline]\nBUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497\nBUG: KMSAN: uninit-value in asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497\n asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline]\n asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497\n asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497",
  "id": "GHSA-72gm-6qcq-3xmp",
  "modified": "2025-02-03T15:31:59Z",
  "published": "2024-03-04T18:30:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47101"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8035b1a2a37a29d8c717ef84fca8fe7278bc9f03"
    },
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  "severity": [
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      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GSD-2021-47101

Vulnerability from gsd - Updated: 2024-03-01 06:04

Details

Aliases

CVE-2021-47101

JSON

To clipboard

{
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-47101"
      ],
      "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nasix: fix uninit-value in asix_mdio_read()\n\nasix_read_cmd() may read less than sizeof(smsr) bytes and in this case\nsmsr will be uninitialized.\n\nFail log:\nBUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline]\nBUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497\nBUG: KMSAN: uninit-value in asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497\n asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline]\n asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497\n asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497",
      "id": "GSD-2021-47101",
      "modified": "2024-03-01T06:04:48.323215Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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      "CVE_data_meta": {
        "ASSIGNER": "cve@kernel.org",
        "ID": "CVE-2021-47101",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
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              "product": {
                "product_data": [
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                    "product_name": "Linux",
                    "version": {
                      "version_data": [
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                          "version_affected": "\u003c",
                          "version_name": "d9fe64e51114",
                          "version_value": "d259f621c859"
                        },
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                                "version": "0",
                                "versionType": "custom"
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                                "status": "unaffected",
                                "version": "5.15.12",
                                "versionType": "custom"
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                              {
                                "lessThanOrEqual": "*",
                                "status": "unaffected",
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                                "versionType": "original_commit_for_fix"
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nasix: fix uninit-value in asix_mdio_read()\n\nasix_read_cmd() may read less than sizeof(smsr) bytes and in this case\nsmsr will be uninitialized.\n\nFail log:\nBUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline]\nBUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497\nBUG: KMSAN: uninit-value in asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497\n asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline]\n asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497\n asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497"
          }
        ]
      },
      "generator": {
        "engine": "bippy-4986f5686161"
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://git.kernel.org/stable/c/d259f621c85949f30cc578cac813b82bb5169f56",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/d259f621c85949f30cc578cac813b82bb5169f56"
          },
          {
            "name": "https://git.kernel.org/stable/c/8035b1a2a37a29d8c717ef84fca8fe7278bc9f03",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/8035b1a2a37a29d8c717ef84fca8fe7278bc9f03"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "cve": {
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nasix: fix uninit-value in asix_mdio_read()\n\nasix_read_cmd() may read less than sizeof(smsr) bytes and in this case\nsmsr will be uninitialized.\n\nFail log:\nBUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline]\nBUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497\nBUG: KMSAN: uninit-value in asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497\n asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline]\n asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497\n asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497"
          }
        ],
        "id": "CVE-2021-47101",
        "lastModified": "2024-03-05T13:41:01.900",
        "metrics": {},
        "published": "2024-03-04T18:15:08.450",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/8035b1a2a37a29d8c717ef84fca8fe7278bc9f03"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/d259f621c85949f30cc578cac813b82bb5169f56"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Awaiting Analysis"
      }
    }
  }
}

RHSA-2024:7000

Vulnerability from csaf_redhat - Published: 2024-09-24 02:39 - Updated: 2026-09-13 08:46

Summary

Red Hat Security Advisory: kernel security update

Severity

Important

Scope

151 vulnerabilities in this advisory, including CVE-2021-47101.

CVE-2021-47101

6.0 (Medium)


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

Fixed: 120 products

https://access.redhat.com/errata/RHSA-2024:7000

Open the full advisory

RHSA-2024:7001

Vulnerability from csaf_redhat - Published: 2024-09-24 00:40 - Updated: 2026-09-13 08:28

Summary

Red Hat Security Advisory: kernel-rt security update

Severity

Important

Scope

129 vulnerabilities in this advisory, including CVE-2021-47101.

CVE-2021-47101

6.0 (Medium)


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

Fixed: 30 products

https://access.redhat.com/errata/RHSA-2024:7001

Open the full advisory

RHSA-2024:9315

Vulnerability from csaf_redhat - Published: 2024-11-12 09:11 - Updated: 2026-09-13 08:43

Summary

Red Hat Security Advisory: kernel security update

Severity

Moderate

Scope

594 vulnerabilities in this advisory, including CVE-2021-47101.

CVE-2021-47101

6.0 (Medium)


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

Fixed: 280 products Known not affected: 8 products

https://access.redhat.com/errata/RHSA-2024:9315

Open the full advisory

RHSA-2024_7000

Vulnerability from csaf_redhat - Published: 2024-09-24 02:39 - Updated: 2024-12-11 21:53

Summary

Red Hat Security Advisory: kernel security update

Severity

Important

Scope

145 vulnerabilities in this advisory, including CVE-2021-47101.

CVE-2021-47101

6.0 (Medium)


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

Fixed: 214 products

https://access.redhat.com/errata/RHSA-2024:7000

Open the full advisory

RHSA-2024_7001

Vulnerability from csaf_redhat - Published: 2024-09-24 00:40 - Updated: 2024-12-11 21:53

Summary

Red Hat Security Advisory: kernel-rt security update

Severity

Important

Scope

129 vulnerabilities in this advisory, including CVE-2021-47101.

CVE-2021-47101

6.0 (Medium)


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

Fixed: 32 products

https://access.redhat.com/errata/RHSA-2024:7001

Open the full advisory

RHSA-2024_9315

Vulnerability from csaf_redhat - Published: 2024-11-12 09:11 - Updated: 2024-12-17 19:00

Summary

Red Hat Security Advisory: kernel security update

Severity

Moderate

Scope

479 vulnerabilities in this advisory, including CVE-2021-47101.

CVE-2021-47101

6.0 (Medium)


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

Fixed: 870 products Known not affected: 20 products

https://access.redhat.com/errata/RHSA-2024:9315

Open the full advisory

RHSA-2025:3935

Vulnerability from csaf_redhat - Published: 2025-04-16 03:19 - Updated: 2026-09-14 12:21

Summary

Red Hat Security Advisory: kernel security update

Severity

Moderate

Scope

13 vulnerabilities in this advisory, including CVE-2021-47101.

CVE-2021-47101

6.0 (Medium)


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

Fixed: 279 products

https://access.redhat.com/errata/RHSA-2025:3935

Open the full advisory

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2021-47101 (GCVE-0-2021-47101)

Tags

Sightings

Nomenclature