{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: Update error handler for UCTX and UMEM\n\nIn the fast unload flow, the device state is set to internal error,\nwhich indicates that the driver started the destroy process.\nIn this case, when a destroy command is being executed, it should return\nMLX5_CMD_STAT_OK.\nFix MLX5_CMD_OP_DESTROY_UCTX and MLX5_CMD_OP_DESTROY_UMEM to return OK\ninstead of EIO.\n\nThis fixes a call trace in the umem release process -\n[ 2633.536695] Call Trace:\n[ 2633.537518]  ib_uverbs_remove_one+0xc3/0x140 [ib_uverbs]\n[ 2633.538596]  remove_client_context+0x8b/0xd0 [ib_core]\n[ 2633.539641]  disable_device+0x8c/0x130 [ib_core]\n[ 2633.540615]  __ib_unregister_device+0x35/0xa0 [ib_core]\n[ 2633.541640]  ib_unregister_device+0x21/0x30 [ib_core]\n[ 2633.542663]  __mlx5_ib_remove+0x38/0x90 [mlx5_ib]\n[ 2633.543640]  auxiliary_bus_remove+0x1e/0x30 [auxiliary]\n[ 2633.544661]  device_release_driver_internal+0x103/0x1f0\n[ 2633.545679]  bus_remove_device+0xf7/0x170\n[ 2633.546640]  device_del+0x181/0x410\n[ 2633.547606]  mlx5_rescan_drivers_locked.part.10+0x63/0x160 [mlx5_core]\n[ 2633.548777]  mlx5_unregister_device+0x27/0x40 [mlx5_core]\n[ 2633.549841]  mlx5_uninit_one+0x21/0xc0 [mlx5_core]\n[ 2633.550864]  remove_one+0x69/0xe0 [mlx5_core]\n[ 2633.551819]  pci_device_remove+0x3b/0xc0\n[ 2633.552731]  device_release_driver_internal+0x103/0x1f0\n[ 2633.553746]  unbind_store+0xf6/0x130\n[ 2633.554657]  kernfs_fop_write+0x116/0x190\n[ 2633.555567]  vfs_write+0xa5/0x1a0\n[ 2633.556407]  ksys_write+0x4f/0xb0\n[ 2633.557233]  do_syscall_64+0x5b/0x1a0\n[ 2633.558071]  entry_SYSCALL_64_after_hwframe+0x65/0xca\n[ 2633.559018] RIP: 0033:0x7f9977132648\n[ 2633.559821] Code: 89 02 48 c7 c0 ff ff ff ff eb b3 0f 1f 80 00 00 00 00 f3 0f 1e fa 48 8d 05 55 6f 2d 00 8b 00 85 c0 75 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 41 54 49 89 d4 55\n[ 2633.562332] RSP: 002b:00007fffb1a83888 EFLAGS: 00000246 ORIG_RAX: 0000000000000001\n[ 2633.563472] RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007f9977132648\n[ 2633.564541] RDX: 000000000000000c RSI: 000055b90546e230 RDI: 0000000000000001\n[ 2633.565596] RBP: 000055b90546e230 R08: 00007f9977406860 R09: 00007f9977a54740\n[ 2633.566653] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f99774056e0\n[ 2633.567692] R13: 000000000000000c R14: 00007f9977400880 R15: 000000000000000c\n[ 2633.568725] ---[ end trace 10b4fe52945e544d ]---"
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/net/ethernet/mellanox/mlx5/core/cmd.c"
               ],
               "versions": [
                  {
                     "version": "6a6fabbfa3e8",
                     "lessThan": "a51a6da375d8",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "6a6fabbfa3e8",
                     "lessThan": "ba50cd9451f6",
                     "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/net/ethernet/mellanox/mlx5/core/cmd.c"
               ],
               "versions": [
                  {
                     "version": "5.2",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "5.2",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15.5",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.16",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/a51a6da375d82aed5c8f83abd13e7d060421bd48"
            },
            {
               "url": "https://git.kernel.org/stable/c/ba50cd9451f6c49cf0841c0a4a146ff6a2822699"
            }
         ],
         "title": "net/mlx5: Update error handler for UCTX and UMEM",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2021-47212",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}