drm/sti: avoid potential dereference of error pointers in sti_hqvdp_atomic_check

{
  "id": "346257204d6a4823b93dc5cfb087c93691adc9844b0b7750b031f35beee27918",
  "url": "https://osv.dev/vulnerability/CVE-2024-56778",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "drm/sti: avoid potential dereference of error pointers in sti_hqvdp_atomic_check",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: drm/sti: avoid potential dereference of error pointers in sti_hqvdp_atomic_check The return value of drm_atomic_get_crtc_state() needs to be checked. To avoid use of error pointer 'crtc_state' in case of the failure.",
    "evidence": "osv:CVE-2024-56778",
    "products": [
      {
        "name": {
          "value": "Kernel",
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        "prerequisites": [],
        "fixed_versions": [
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            "evidence": "/affected/1/ranges"
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          {
            "value": "6.1.120",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.64",
            "evidence": "/affected/1/ranges"
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          {
            "value": "6.12.4",
            "evidence": "/affected/1/ranges"
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        "affected_versions": []
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    "severity": "medium",
    "structured": {
      "id": "CVE-2024-56778",
      "aliases": [
        "CVE-2024-56778"
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      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
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      ],
      "modified": "2026-10-28T02:30:30.296121351Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/31c857e7496d34e5a32a6f75bc024d0b06fd646a",
        "https://git.kernel.org/stable/c/6b0d0d6e9d3c26697230bf7dc9e6b52bdb24086f",
        "https://git.kernel.org/stable/c/82a5312f874fb18f045d9658e9bd290e3b0621c0",
        "https://git.kernel.org/stable/c/837eb99ad3340c7a9febf454f41c8e3edb68ac1e",
        "https://git.kernel.org/stable/c/c1ab40a1fdfee732c7e6ff2fb8253760293e47e8",
        "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56778.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-56778",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56778.json"
      }
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    "related_cves": [
      {
        "value": "CVE-2024-56778",
        "evidence": "/id"
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    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 496957,
  "published_at": "2025-01-08T17:49:16.207+00:00"
}