{
   "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/vc4: Fix deadlock on DSI device attach error\n\nDSI device attach to DSI host will be done with host device's lock\nheld.\n\nUn-registering host in \"device attach\" error path (ex: probe retry)\nwill result in deadlock with below call trace and non operational\nDSI display.\n\nStartup Call trace:\n[   35.043036]  rt_mutex_slowlock.constprop.21+0x184/0x1b8\n[   35.043048]  mutex_lock_nested+0x7c/0xc8\n[   35.043060]  device_del+0x4c/0x3e8\n[   35.043075]  device_unregister+0x20/0x40\n[   35.043082]  mipi_dsi_remove_device_fn+0x18/0x28\n[   35.043093]  device_for_each_child+0x68/0xb0\n[   35.043105]  mipi_dsi_host_unregister+0x40/0x90\n[   35.043115]  vc4_dsi_host_attach+0xf0/0x120 [vc4]\n[   35.043199]  mipi_dsi_attach+0x30/0x48\n[   35.043209]  tc358762_probe+0x128/0x164 [tc358762]\n[   35.043225]  mipi_dsi_drv_probe+0x28/0x38\n[   35.043234]  really_probe+0xc0/0x318\n[   35.043244]  __driver_probe_device+0x80/0xe8\n[   35.043254]  driver_probe_device+0xb8/0x118\n[   35.043263]  __device_attach_driver+0x98/0xe8\n[   35.043273]  bus_for_each_drv+0x84/0xd8\n[   35.043281]  __device_attach+0xf0/0x150\n[   35.043290]  device_initial_probe+0x1c/0x28\n[   35.043300]  bus_probe_device+0xa4/0xb0\n[   35.043308]  deferred_probe_work_func+0xa0/0xe0\n[   35.043318]  process_one_work+0x254/0x700\n[   35.043330]  worker_thread+0x4c/0x448\n[   35.043339]  kthread+0x19c/0x1a8\n[   35.043348]  ret_from_fork+0x10/0x20\n\nShutdown Call trace:\n[  365.565417] Call trace:\n[  365.565423]  __switch_to+0x148/0x200\n[  365.565452]  __schedule+0x340/0x9c8\n[  365.565467]  schedule+0x48/0x110\n[  365.565479]  schedule_timeout+0x3b0/0x448\n[  365.565496]  wait_for_completion+0xac/0x138\n[  365.565509]  __flush_work+0x218/0x4e0\n[  365.565523]  flush_work+0x1c/0x28\n[  365.565536]  wait_for_device_probe+0x68/0x158\n[  365.565550]  device_shutdown+0x24/0x348\n[  365.565561]  kernel_restart_prepare+0x40/0x50\n[  365.565578]  kernel_restart+0x20/0x70\n[  365.565591]  __do_sys_reboot+0x10c/0x220\n[  365.565605]  __arm64_sys_reboot+0x2c/0x38\n[  365.565619]  invoke_syscall+0x4c/0x110\n[  365.565634]  el0_svc_common.constprop.3+0xfc/0x120\n[  365.565648]  do_el0_svc+0x2c/0x90\n[  365.565661]  el0_svc+0x4c/0xf0\n[  365.565671]  el0t_64_sync_handler+0x90/0xb8\n[  365.565682]  el0t_64_sync+0x180/0x184"
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/gpu/drm/vc4/vc4_dsi.c"
               ],
               "versions": [
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "770d1ba9a820",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "dddd832f3509",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "0a3d12ab5097",
                     "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/vc4/vc4_dsi.c"
               ],
               "versions": [
                  {
                     "version": "5.15.24",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.16.10",
                     "lessThanOrEqual": "5.16.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.17",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/770d1ba9a8201ce9bee0946eb03746449b6f3b80"
            },
            {
               "url": "https://git.kernel.org/stable/c/dddd832f35096fbc5004e3a7e58fb4d2cefb8deb"
            },
            {
               "url": "https://git.kernel.org/stable/c/0a3d12ab5097b1d045e693412e6b366b7e82031b"
            }
         ],
         "title": "drm/vc4: Fix deadlock on DSI device attach error",
         "x_generator": {
            "engine": "bippy-c9c4e1df01b2"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2022-48826",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}