drm/amd/display: Add null check for 'afb' in amdgpu_dm_plane_handle_cursor_update (v2)

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  "url": "https://osv.dev/vulnerability/CVE-2024-49905",
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    "kind": "advisory",
    "title": "drm/amd/display: Add null check for 'afb' in amdgpu_dm_plane_handle_cursor_update (v2)",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Add null check for 'afb' in amdgpu_dm_plane_handle_cursor_update (v2) This commit adds a null check for the 'afb' variable in the amdgpu_dm_plane_handle_cursor_update function. Previously, 'afb' was assumed to be null, but was used later in the code without a null check. This could potentially lead to a null pointer dereference. Changes since v1: - Moved the null check for 'afb' to the line where 'afb' is used. (Alex) Fixes the below: drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_plane.c:1298 amdgpu_dm_plane_handle_cursor_update() error: we previously assumed 'afb' could be null (see line 1252)",
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      "modified": "2026-10-28T02:30:46.551545341Z",
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      "references": [
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  "source_id": "core-osv",
  "document_id": 514488,
  "published_at": "2024-10-21T18:01:36.038+00:00"
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