GHSA-GGVW-PP2V-J3GM

Vulnerability from github – Published: 2026-06-25 09:31 – Updated: 2026-06-30 03:37
VLAI
Details

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

thunderbolt: Clamp XDomain response data copy to allocation size

tb_xdp_properties_request() derives the per-packet copy length from the response header without checking that it fits in the previously allocated data buffer. A malicious peer can set its length field larger than the declared data_length, causing memcpy to write past the kcalloc allocation.

Clamp the per-packet copy length so that the cumulative offset never exceeds data_len.

Severity
7.0 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2026-53148"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-25T09:16:32Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nthunderbolt: Clamp XDomain response data copy to allocation size\n\ntb_xdp_properties_request() derives the per-packet copy length from\nthe response header without checking that it fits in the previously\nallocated data buffer.  A malicious peer can set its length field\nlarger than the declared data_length, causing memcpy to write past\nthe kcalloc allocation.\n\nClamp the per-packet copy length so that the cumulative offset\nnever exceeds data_len.",
  "id": "GHSA-ggvw-pp2v-j3gm",
  "modified": "2026-06-30T03:37:13Z",
  "published": "2026-06-25T09:31:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53148"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-53148"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492756"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/05a43157676c243c248d1c6d9dcecbe6eba2f35d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0b334279a82d79fb4723bd4f614305de1ab69caa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/322e93448d908434ae5545660fcbe8f5a7a8e141"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5db10c8ad8c09f72c847dfeef3d876098257f505"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6021d39ccd979713b39b980286020d8f9a45efd1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/89ae04365e01d5ae4aae83044a8bbd2a9aaf8d0d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/906035d5c3784570191d259cbf9a0ac1617852b5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fcbd0cdab92838854a5818be7ed8a097164ef6d5"
    },
    {
      "type": "WEB",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53148.json"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}



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