Vulnerability-Lookup

GHSA-9CPH-QJ5M-89RX

Vulnerability from github – Published: 2026-06-25 09:31 – Updated: 2026-06-28 09:31

Details

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

thunderbolt: Limit XDomain response copy to actual frame size

tb_xdomain_copy() copies req->response_size bytes from the received packet buffer regardless of the actual frame size. When a short response arrives, this reads past the valid frame data in the DMA pool buffer into stale contents from previous transactions.

Use the minimum of frame size and expected response size for the copy length.

Severity

7.1 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-53146"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-25T09:16:31Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nthunderbolt: Limit XDomain response copy to actual frame size\n\ntb_xdomain_copy() copies req-\u003eresponse_size bytes from the received\npacket buffer regardless of the actual frame size.  When a short\nresponse arrives, this reads past the valid frame data in the DMA\npool buffer into stale contents from previous transactions.\n\nUse the minimum of frame size and expected response size for the\ncopy length.",
  "id": "GHSA-9cph-qj5m-89rx",
  "modified": "2026-06-28T09:31:42Z",
  "published": "2026-06-25T09:31:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53146"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/033dfa63bf6be2653441a1dccae4a8313a91bb9d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4db2bd2ed4785dbadaeeab9f4e346b21ac5fb8eb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7720654b4842bcdfeb64bc002f6186041849e1e7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a15b6d3136accb2bf84b04d9a3ddd991f7fbf1cb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b2c1e5d9f1598cc1a4736d5c6bd1218f90805ee4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b5daa920f44cb582272fc9bfaeb67408776cbaef"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c55da494dfb445fb28df3a9d293c2be6a299cd01"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fc261397295b8ad0654cec747b0ec25ea0011995"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-53146 (GCVE-0-2026-53146)

Vulnerability from cvelistv5 – Published: 2026-06-25 08:38 – Updated: 2026-08-05 12:33

Title

thunderbolt: Limit XDomain response copy to actual frame size

Summary

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Limit XDomain response copy to actual frame size tb_xdomain_copy() copies req->response_size bytes from the received packet buffer regardless of the actual frame size. When a short response arrives, this reads past the valid frame data in the DMA pool buffer into stale contents from previous transactions. Use the minimum of frame size and expected response size for the copy length.

Severity

7.1 (High)


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

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/c55da494dfb445fb2…
https://git.kernel.org/stable/c/7720654b4842bcdfe…
https://git.kernel.org/stable/c/033dfa63bf6be2653…
https://git.kernel.org/stable/c/fc261397295b8ad06…
https://git.kernel.org/stable/c/a15b6d3136accb2bf…
https://git.kernel.org/stable/c/b5daa920f44cb5822…
https://git.kernel.org/stable/c/b2c1e5d9f1598cc1a…
https://git.kernel.org/stable/c/4db2bd2ed4785dbad…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: cdae7c07e3e3509eaabc18c1640a55dc5b99c179 , < c55da494dfb445fb28df3a9d293c2be6a299cd01 (git) Affected: cdae7c07e3e3509eaabc18c1640a55dc5b99c179 , < 7720654b4842bcdfeb64bc002f6186041849e1e7 (git) Affected: cdae7c07e3e3509eaabc18c1640a55dc5b99c179 , < 033dfa63bf6be2653441a1dccae4a8313a91bb9d (git) Affected: cdae7c07e3e3509eaabc18c1640a55dc5b99c179 , < fc261397295b8ad0654cec747b0ec25ea0011995 (git) Affected: cdae7c07e3e3509eaabc18c1640a55dc5b99c179 , < a15b6d3136accb2bf84b04d9a3ddd991f7fbf1cb (git) Affected: cdae7c07e3e3509eaabc18c1640a55dc5b99c179 , < b5daa920f44cb582272fc9bfaeb67408776cbaef (git) Affected: cdae7c07e3e3509eaabc18c1640a55dc5b99c179 , < b2c1e5d9f1598cc1a4736d5c6bd1218f90805ee4 (git) Affected: cdae7c07e3e3509eaabc18c1640a55dc5b99c179 , < 4db2bd2ed4785dbadaeeab9f4e346b21ac5fb8eb (git)
Linux	Linux	Affected: 4.15 Unaffected: 0 , < 4.15 (semver) Unaffected: 5.10.259 , ≤ 5.10.* (semver) Unaffected: 5.15.210 , ≤ 5.15.* (semver) Unaffected: 6.1.176 , ≤ 6.1.* (semver) Unaffected: 6.6.143 , ≤ 6.6.* (semver) Unaffected: 6.12.94 , ≤ 6.12.* (semver) Unaffected: 6.18.36 , ≤ 6.18.* (semver) Unaffected: 7.0.13 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/thunderbolt/xdomain.c"
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    "cveId": "CVE-2026-53146",
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    "dateReserved": "2026-06-09T07:44:35.387Z",
    "dateUpdated": "2026-08-05T12:33:29.560Z",
    "state": "PUBLISHED"
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}

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.

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.
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GHSA-9CPH-QJ5M-89RX

CVE-2026-53146 (GCVE-0-2026-53146)

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