GHSA-J7G7-X525-GXGJ

Vulnerability from github – Published: 2026-07-01 15:35 – Updated: 2026-07-01 15:35
VLAI?
Details

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

drm/amd/display: Use krealloc_array() in dal_vector_reserve()

[Why & How] dal_vector_reserve() computes the allocation size as "capacity * vector->struct_size" using uint32_t arithmetic, which can silently wrap to a small value on overflow. This would cause krealloc to return a smaller buffer than expected, leading to heap overflows on subsequent vector appends.

Replace krealloc() with krealloc_array() which performs an internal overflow check and returns NULL on wrap, preventing the issue.

(cherry picked from commit 37668568641ccc4cc1dbca4923d0a16609dd5707)

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{
  "affected": [],
  "aliases": [
    "CVE-2026-53329"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-01T14:16:40Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Use krealloc_array() in dal_vector_reserve()\n\n[Why \u0026 How]\ndal_vector_reserve() computes the allocation size as\n\"capacity * vector-\u003estruct_size\" using uint32_t arithmetic, which can\nsilently wrap to a small value on overflow. This would cause krealloc to\nreturn a smaller buffer than expected, leading to heap overflows on\nsubsequent vector appends.\n\nReplace krealloc() with krealloc_array() which performs an internal\noverflow check and returns NULL on wrap, preventing the issue.\n\n(cherry picked from commit 37668568641ccc4cc1dbca4923d0a16609dd5707)",
  "id": "GHSA-j7g7-x525-gxgj",
  "modified": "2026-07-01T15:35:19Z",
  "published": "2026-07-01T15:35:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53329"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/201151e120f0062bcda21cad5d007b82725ad23b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/31180638a33acad12c863132704a76536fb66211"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a914aa802669e073f014dae2e5708633b5cecd34"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b15825deac1acff72638bbc8f05b89ceef8dfb13"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/da48bc4461b8a5ebfb9264c9b191a701d8e99009"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/de988c7a31f0774f07894cfe4802996f318e2870"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e09689286385a66311ac6922af95339d7a3cef8d"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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