drm/amd/display: Handle null 'stream_status' in 'planes_changed_for_existing_stream'

{
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  "url": "https://osv.dev/vulnerability/CVE-2024-49912",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "drm/amd/display: Handle null 'stream_status' in 'planes_changed_for_existing_stream'",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Handle null 'stream_status' in 'planes_changed_for_existing_stream' This commit adds a null check for 'stream_status' in the function 'planes_changed_for_existing_stream'. Previously, the code assumed 'stream_status' could be null, but did not handle the case where it was actually null. This could lead to a null pointer dereference. Reported by smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_resource.c:3784 planes_changed_for_existing_stream() error: we previously assumed 'stream_status' could be null (see line 3774)",
    "evidence": "osv:CVE-2024-49912",
    "products": [
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    "severity": "unknown",
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      "aliases": [
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      "modified": "2026-10-28T02:30:37.531148187Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0ffd9fb03bbc99ed1eb5dc989d5c7da2faac0659",
        "https://git.kernel.org/stable/c/4778982c73d6c9f3fdbdbc6b6c8aa18df98251af",
        "https://git.kernel.org/stable/c/8141f21b941710ecebe49220b69822cab3abd23d",
        "https://git.kernel.org/stable/c/c4b699b93496c423b0e5b584d4eb4ab849313bcf",
        "https://git.kernel.org/stable/c/ec6c32b58e6c4e87760e797c525e99a460c82bcb",
        "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/49xxx/CVE-2024-49912.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-49912",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
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    "security_relevant": true,
    "severity_evidence": null
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  "source_id": "core-osv",
  "document_id": 504573,
  "published_at": "2024-10-21T18:01:40.87+00:00"
}