github - ghsa-7hw6-wgqh-2g44

GHSA-7HW6-WGQH-2G44

Vulnerability from github – Published: 2025-06-18 12:30 – Updated: 2025-11-14 18:31

Details

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

xhci: Fix null pointer dereference in remove if xHC has only one roothub

The remove path in xhci platform driver tries to remove and put both main and shared hcds even if only a main hcd exists (one roothub)

This causes a null pointer dereference in reboot for those controllers.

Check that the shared_hcd exists before trying to remove it.

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-2022-49962"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-18T11:15:23Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nxhci: Fix null pointer dereference in remove if xHC has only one roothub\n\nThe remove path in xhci platform driver tries to remove and put both main\nand shared hcds even if only a main hcd exists (one roothub)\n\nThis causes a null pointer dereference in reboot for those controllers.\n\nCheck that the shared_hcd exists before trying to remove it.",
  "id": "GHSA-7hw6-wgqh-2g44",
  "modified": "2025-11-14T18:31:23Z",
  "published": "2025-06-18T12:30:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49962"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4a593a62a9e3a25ab4bc37f612e4edec144f7f43"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7081b2f34ff291ada012bd6abacaf7d51c4cf73f"
    }
  ],
  "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-2022-49962 (GCVE-0-2022-49962)

Vulnerability from cvelistv5 – Published: 2025-06-18 11:00 – Updated: 2025-06-18 11:00

Summary

In the Linux kernel, the following vulnerability has been resolved: xhci: Fix null pointer dereference in remove if xHC has only one roothub The remove path in xhci platform driver tries to remove and put both main and shared hcds even if only a main hcd exists (one roothub) This causes a null pointer dereference in reboot for those controllers. Check that the shared_hcd exists before trying to remove it.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/7081b2f34ff291ada…
	https://git.kernel.org/stable/c/4a593a62a9e3a25ab…

Impacted products

Vendor

Product

Version

Linux

Affected: e0fe986972f5b6b12086c73569206dd29c520be9 , < 7081b2f34ff291ada012bd6abacaf7d51c4cf73f (git)
Affected: e0fe986972f5b6b12086c73569206dd29c520be9 , < 4a593a62a9e3a25ab4bc37f612e4edec144f7f43 (git)

Linux

Affected: 5.19
Unaffected: 0 , < 5.19 (semver)
Unaffected: 5.19.8 , ≤ 5.19.* (semver)
Unaffected: 6.0 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/host/xhci-plat.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "7081b2f34ff291ada012bd6abacaf7d51c4cf73f",
              "status": "affected",
              "version": "e0fe986972f5b6b12086c73569206dd29c520be9",
              "versionType": "git"
            },
            {
              "lessThan": "4a593a62a9e3a25ab4bc37f612e4edec144f7f43",
              "status": "affected",
              "version": "e0fe986972f5b6b12086c73569206dd29c520be9",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/host/xhci-plat.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.19"
            },
            {
              "lessThan": "5.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19.8",
                  "versionStartIncluding": "5.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0",
                  "versionStartIncluding": "5.19",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxhci: Fix null pointer dereference in remove if xHC has only one roothub\n\nThe remove path in xhci platform driver tries to remove and put both main\nand shared hcds even if only a main hcd exists (one roothub)\n\nThis causes a null pointer dereference in reboot for those controllers.\n\nCheck that the shared_hcd exists before trying to remove it."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-06-18T11:00:23.321Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/7081b2f34ff291ada012bd6abacaf7d51c4cf73f"
        },
        {
          "url": "https://git.kernel.org/stable/c/4a593a62a9e3a25ab4bc37f612e4edec144f7f43"
        }
      ],
      "title": "xhci: Fix null pointer dereference in remove if xHC has only one roothub",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49962",
    "datePublished": "2025-06-18T11:00:23.321Z",
    "dateReserved": "2025-06-18T10:57:27.383Z",
    "dateUpdated": "2025-06-18T11:00:23.321Z",
    "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-7HW6-WGQH-2G44

CVE-2022-49962 (GCVE-0-2022-49962)

Tags

Sightings

Nomenclature