{
  "id": "CVE-2024-27040",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-05-01T13:15:49.600",
  "lastModified": "2024-05-01T13:15:49.600",
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Add 'replay' NULL check in 'edp_set_replay_allow_active()'\n\nIn the first if statement, we're checking if 'replay' is NULL. But in\nthe second if statement, we're not checking if 'replay' is NULL again\nbefore calling replay->funcs->replay_set_power_opt().\n\nif (replay == NULL && force_static)\n    return false;\n\n...\n\nif (link->replay_settings.replay_feature_enabled &&\n    replay->funcs->replay_set_power_opt) {\n\treplay->funcs->replay_set_power_opt(replay, *power_opts, panel_inst);\n\tlink->replay_settings.replay_power_opt_active = *power_opts;\n}\n\nIf 'replay' is NULL, this will cause a null pointer dereference.\n\nFixes the below found by smatch:\ndrivers/gpu/drm/amd/amdgpu/../display/dc/link/protocols/link_edp_panel_control.c:895 edp_set_replay_allow_active() error: we previously assumed 'replay' could be null (see line 887)"
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/d0e94f4807ff0df66cf447d6b4bbb8ac830e99c3",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e7cadd5d3a8ffe334d0229ba9eda4290138d56e7",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f610c46771ef1047e46d61807aa7c69cd29e63d8",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f6aed043ee5d75b3d1bfc452b1a9584b63c8f76b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}