github - ghsa-4784-9v76-jqjx

GHSA-4784-9V76-JQJX

Vulnerability from github – Published: 2025-12-30 15:30 – Updated: 2025-12-30 15:30

Details

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

usb: typec: bus: verify partner exists in typec_altmode_attention

Some usb hubs will negotiate DisplayPort Alt mode with the device but will then negotiate a data role swap after entering the alt mode. The data role swap causes the device to unregister all alt modes, however the usb hub will still send Attention messages even after failing to reregister the Alt Mode. type_altmode_attention currently does not verify whether or not a device's altmode partner exists, which results in a NULL pointer error when dereferencing the typec_altmode and typec_altmode_ops belonging to the altmode partner.

Verify the presence of a device's altmode partner before sending the Attention message to the Alt Mode driver.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-54299"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-30T13:16:19Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: bus: verify partner exists in typec_altmode_attention\n\nSome usb hubs will negotiate DisplayPort Alt mode with the device\nbut will then negotiate a data role swap after entering the alt\nmode. The data role swap causes the device to unregister all alt\nmodes, however the usb hub will still send Attention messages\neven after failing to reregister the Alt Mode. type_altmode_attention\ncurrently does not verify whether or not a device\u0027s altmode partner\nexists, which results in a NULL pointer error when dereferencing\nthe typec_altmode and typec_altmode_ops belonging to the altmode\npartner.\n\nVerify the presence of a device\u0027s altmode partner before sending\nthe Attention message to the Alt Mode driver.",
  "id": "GHSA-4784-9v76-jqjx",
  "modified": "2025-12-30T15:30:35Z",
  "published": "2025-12-30T15:30:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-54299"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0ad6bad31da692f8d7acacab07eabe7586239ae0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0d3b5fe47938e9c451466845304a2bd74e967a80"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1101867a1711c27d8bbe0e83136bec47f8c1ca2a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/38e1f2ee82bacbbfded8f1c06794a443d038d054"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5f71716772b88cbe0e1788f6a38d7871aff2120b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d49547950bf7f3480d6ca05fe055978e5f0d9e5b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f23643306430f86e2f413ee2b986e0773e79da31"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2023-54299 (GCVE-0-2023-54299)

Vulnerability from cvelistv5 – Published: 2025-12-30 12:23 – Updated: 2025-12-30 12:23

Title

usb: typec: bus: verify partner exists in typec_altmode_attention

Summary

In the Linux kernel, the following vulnerability has been resolved: usb: typec: bus: verify partner exists in typec_altmode_attention Some usb hubs will negotiate DisplayPort Alt mode with the device but will then negotiate a data role swap after entering the alt mode. The data role swap causes the device to unregister all alt modes, however the usb hub will still send Attention messages even after failing to reregister the Alt Mode. type_altmode_attention currently does not verify whether or not a device's altmode partner exists, which results in a NULL pointer error when dereferencing the typec_altmode and typec_altmode_ops belonging to the altmode partner. Verify the presence of a device's altmode partner before sending the Attention message to the Alt Mode driver.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/5f71716772b88cbe0…
	https://git.kernel.org/stable/c/38e1f2ee82bacbbfd…
	https://git.kernel.org/stable/c/0ad6bad31da692f8d…
	https://git.kernel.org/stable/c/0d3b5fe47938e9c45…
	https://git.kernel.org/stable/c/d49547950bf7f3480…
	https://git.kernel.org/stable/c/1101867a1711c27d8…
	https://git.kernel.org/stable/c/f23643306430f86e2…

Impacted products

Vendor

Product

Version

Linux

Affected: 8a37d87d72f0c69f837229c04d2fcd7117ea57e7 , < 5f71716772b88cbe0e1788f6a38d7871aff2120b (git)
Affected: 8a37d87d72f0c69f837229c04d2fcd7117ea57e7 , < 38e1f2ee82bacbbfded8f1c06794a443d038d054 (git)
Affected: 8a37d87d72f0c69f837229c04d2fcd7117ea57e7 , < 0ad6bad31da692f8d7acacab07eabe7586239ae0 (git)
Affected: 8a37d87d72f0c69f837229c04d2fcd7117ea57e7 , < 0d3b5fe47938e9c451466845304a2bd74e967a80 (git)
Affected: 8a37d87d72f0c69f837229c04d2fcd7117ea57e7 , < d49547950bf7f3480d6ca05fe055978e5f0d9e5b (git)
Affected: 8a37d87d72f0c69f837229c04d2fcd7117ea57e7 , < 1101867a1711c27d8bbe0e83136bec47f8c1ca2a (git)
Affected: 8a37d87d72f0c69f837229c04d2fcd7117ea57e7 , < f23643306430f86e2f413ee2b986e0773e79da31 (git)

Linux

Affected: 4.19
Unaffected: 0 , < 4.19 (semver)
Unaffected: 5.4.257 , ≤ 5.4.* (semver)
Unaffected: 5.10.195 , ≤ 5.10.* (semver)
Unaffected: 5.15.132 , ≤ 5.15.* (semver)
Unaffected: 6.1.53 , ≤ 6.1.* (semver)
Unaffected: 6.4.16 , ≤ 6.4.* (semver)
Unaffected: 6.5.3 , ≤ 6.5.* (semver)
Unaffected: 6.6 , ≤ * (original_commit_for_fix)

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{
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        {
          "defaultStatus": "unaffected",
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          "programFiles": [
            "drivers/usb/typec/bus.c",
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          ],
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            },
            {
              "lessThan": "4.19",
              "status": "unaffected",
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              "versionType": "semver"
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              "versionType": "semver"
            },
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              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.195",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.132",
              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "6.1.53",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.4.*",
              "status": "unaffected",
              "version": "6.4.16",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "6.5.*",
              "status": "unaffected",
              "version": "6.5.3",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.6",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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          "nodes": [
            {
              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: bus: verify partner exists in typec_altmode_attention\n\nSome usb hubs will negotiate DisplayPort Alt mode with the device\nbut will then negotiate a data role swap after entering the alt\nmode. The data role swap causes the device to unregister all alt\nmodes, however the usb hub will still send Attention messages\neven after failing to reregister the Alt Mode. type_altmode_attention\ncurrently does not verify whether or not a device\u0027s altmode partner\nexists, which results in a NULL pointer error when dereferencing\nthe typec_altmode and typec_altmode_ops belonging to the altmode\npartner.\n\nVerify the presence of a device\u0027s altmode partner before sending\nthe Attention message to the Alt Mode driver."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-30T12:23:35.146Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        {
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    "datePublished": "2025-12-30T12:23:35.146Z",
    "dateReserved": "2025-12-30T12:06:44.528Z",
    "dateUpdated": "2025-12-30T12:23:35.146Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2"
}

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-4784-9V76-JQJX

CVE-2023-54299 (GCVE-0-2023-54299)

Tags

Sightings

Nomenclature