{
  "cveId": "CVE-2026-89828",
  "url": "https://patchblox.com/security/cve/CVE-2026-89828",
  "summary": "CVE-2026-89828 is fixed in linux on 1 platform by DEBIAN-CVE-2026-89828 (version 7.2.6-1), released September 23, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "drm/amdgpu: Fix init ordering in amdgpu_vram_mgr_init()",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  drm/amdgpu: Fix init ordering in amdgpu_vram_mgr_init()  drmm_cgroup_register_region() is called before INIT_LIST_HEAD() and gpu_buddy_init() in amdgpu_vram_mgr_init(). If it fails, the function returns early and bypasses those initializations.  Since adev-\u003Emman.initialized is set to true before amdgpu_vram_mgr_init() is called, a failure triggers amdgpu_ttm_fini(), which calls amdgpu_vram_mgr_fini(), which then:   - Calls list_for_each_entry_safe() on reservations_pending and    reserved_pages, whose list_head::next pointers are zero-initialized    (NULL). The loop does not recognize them as empty and dereferences NULL.   - Calls gpu_buddy_fini(), which iterates free_trees[] unconditionally    via for_each_free_tree(). Since mm-\u003Efree_trees is NULL    (never allocated), this dereferences NULL.  Both result in a kernel panic on the module load error path.  Fix by moving drmm_cgroup_register_region() to after the list and buddy allocator are fully initialized, so the teardown path is safe to run.",
  "published": "2026-09-16T11:16:49Z",
  "severity": "",
  "epss": 0.00219,
  "epssPercentile": 0.12478,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-89828",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.6-1",
      "fix": "DEBIAN-CVE-2026-89828",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-89828",
      "released": "2026-09-23T19:19:02Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}