ghsa-7898-c345-v398
Vulnerability from github
Published
2025-05-20 18:30
Modified
2025-05-20 18:30
Details

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

drm/amd/display: Fix invalid context error in dml helper

[Why] "BUG: sleeping function called from invalid context" error. after: "drm/amd/display: Protect FPU in dml2_validate()/dml21_validate()"

The populate_dml_plane_cfg_from_plane_state() uses the GFP_KERNEL flag for memory allocation, which shouldn't be used in atomic contexts.

The allocation is needed only for using another helper function get_scaler_data_for_plane().

[How] Modify helpers to pass a pointer to scaler_data within existing context, eliminating the need for dynamic memory allocation/deallocation and copying.

(cherry picked from commit bd3e84bc98f81b44f2c43936bdadc3241d654259)

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{
  "affected": [],
  "aliases": [
    "CVE-2025-37965"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-20T17:15:46Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix invalid context error in dml helper\n\n[Why]\n\"BUG: sleeping function called from invalid context\" error.\nafter:\n\"drm/amd/display: Protect FPU in dml2_validate()/dml21_validate()\"\n\nThe populate_dml_plane_cfg_from_plane_state() uses the GFP_KERNEL flag\nfor memory allocation, which shouldn\u0027t be used in atomic contexts.\n\nThe allocation is needed only for using another helper function\nget_scaler_data_for_plane().\n\n[How]\nModify helpers to pass a pointer to scaler_data within existing context,\neliminating the need for dynamic memory allocation/deallocation\nand copying.\n\n(cherry picked from commit bd3e84bc98f81b44f2c43936bdadc3241d654259)",
  "id": "GHSA-7898-c345-v398",
  "modified": "2025-05-20T18:30:57Z",
  "published": "2025-05-20T18:30:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37965"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9984db63742099ee3f3cff35cf71306d10e64356"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b371f8f6d89ec8dfea796e00a44a57c44fc8fcc0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d8c4afe78385cd355e4d80299d785379d6e874df"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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