{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Wake DMCUB before sending a command\n\n[Why]\nWe can hang in place trying to send commands when the DMCUB isn't\npowered on.\n\n[How]\nFor functions that execute within a DC context or DC lock we can\nwrap the direct calls to dm_execute_dmub_cmd/list with code that\nexits idle power optimizations and reallows once we're done with\nthe command submission on success.\n\nFor DM direct submissions the DM will need to manage the enter/exit\nsequencing manually.\n\nWe cannot invoke a DMCUB command directly within the DM execution\nhelper or we can deadlock."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c",
                  "drivers/gpu/drm/amd/display/dc/bios/command_table2.c",
                  "drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c",
                  "drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_clk_mgr.c",
                  "drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c",
                  "drivers/gpu/drm/amd/display/dc/clk_mgr/dcn316/dcn316_clk_mgr.c",
                  "drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c",
                  "drivers/gpu/drm/amd/display/dc/core/dc.c",
                  "drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c",
                  "drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c",
                  "drivers/gpu/drm/amd/display/dc/dc_dmub_srv.h",
                  "drivers/gpu/drm/amd/display/dc/dc_helper.c",
                  "drivers/gpu/drm/amd/display/dc/dce/dmub_abm_lcd.c",
                  "drivers/gpu/drm/amd/display/dc/dce/dmub_hw_lock_mgr.c",
                  "drivers/gpu/drm/amd/display/dc/dce/dmub_outbox.c",
                  "drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c",
                  "drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c",
                  "drivers/gpu/drm/amd/display/dc/dcn31/dcn31_dio_link_encoder.c",
                  "drivers/gpu/drm/amd/display/dc/dcn31/dcn31_panel_cntl.c",
                  "drivers/gpu/drm/amd/display/dc/hwss/dcn21/dcn21_hwseq.c",
                  "drivers/gpu/drm/amd/display/dc/hwss/dcn30/dcn30_hwseq.c",
                  "drivers/gpu/drm/amd/display/dc/hwss/dcn31/dcn31_hwseq.c",
                  "drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c",
                  "drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c",
                  "drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_dpia.c"
               ],
               "versions": [
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "303197775a97",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "8892780834ae",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c",
                  "drivers/gpu/drm/amd/display/dc/bios/command_table2.c",
                  "drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c",
                  "drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_clk_mgr.c",
                  "drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c",
                  "drivers/gpu/drm/amd/display/dc/clk_mgr/dcn316/dcn316_clk_mgr.c",
                  "drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c",
                  "drivers/gpu/drm/amd/display/dc/core/dc.c",
                  "drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c",
                  "drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c",
                  "drivers/gpu/drm/amd/display/dc/dc_dmub_srv.h",
                  "drivers/gpu/drm/amd/display/dc/dc_helper.c",
                  "drivers/gpu/drm/amd/display/dc/dce/dmub_abm_lcd.c",
                  "drivers/gpu/drm/amd/display/dc/dce/dmub_hw_lock_mgr.c",
                  "drivers/gpu/drm/amd/display/dc/dce/dmub_outbox.c",
                  "drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c",
                  "drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c",
                  "drivers/gpu/drm/amd/display/dc/dcn31/dcn31_dio_link_encoder.c",
                  "drivers/gpu/drm/amd/display/dc/dcn31/dcn31_panel_cntl.c",
                  "drivers/gpu/drm/amd/display/dc/hwss/dcn21/dcn21_hwseq.c",
                  "drivers/gpu/drm/amd/display/dc/hwss/dcn30/dcn30_hwseq.c",
                  "drivers/gpu/drm/amd/display/dc/hwss/dcn31/dcn31_hwseq.c",
                  "drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c",
                  "drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c",
                  "drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_dpia.c"
               ],
               "versions": [
                  {
                     "version": "6.7.3",
                     "lessThanOrEqual": "6.7.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.8",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/303197775a97416b62d4da69280d0c120a20e009"
            },
            {
               "url": "https://git.kernel.org/stable/c/8892780834ae294bc3697c7d0e056d7743900b39"
            }
         ],
         "title": "drm/amd/display: Wake DMCUB before sending a command",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2023-52485",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}