cve-2024-53167
Vulnerability from cvelistv5
Published
2024-12-27 13:49
Modified
2024-12-27 13:49
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: nfs/blocklayout: Don't attempt unregister for invalid block device Since commit d869da91cccb ("nfs/blocklayout: Fix premature PR key unregistration") an unmount of a pNFS SCSI layout-enabled NFS may dereference a NULL block_device in: bl_unregister_scsi+0x16/0xe0 [blocklayoutdriver] bl_free_device+0x70/0x80 [blocklayoutdriver] bl_free_deviceid_node+0x12/0x30 [blocklayoutdriver] nfs4_put_deviceid_node+0x60/0xc0 [nfsv4] nfs4_deviceid_purge_client+0x132/0x190 [nfsv4] unset_pnfs_layoutdriver+0x59/0x60 [nfsv4] nfs4_destroy_server+0x36/0x70 [nfsv4] nfs_free_server+0x23/0xe0 [nfs] deactivate_locked_super+0x30/0xb0 cleanup_mnt+0xba/0x150 task_work_run+0x59/0x90 syscall_exit_to_user_mode+0x217/0x220 do_syscall_64+0x8e/0x160 This happens because even though we were able to create the nfs4_deviceid_node, the lookup for the device was unable to attach the block device to the pnfs_block_dev. If we never found a block device to register, we can avoid this case with the PNFS_BDEV_REGISTERED flag. Move the deref behind the test for the flag.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3402704a424f34bbcca7f4a4503859357f422217
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3a4ce14d9a6b868e0787e4582420b721c04ee41e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/faa4bacfaeed827a4ca8cb8529a3ce65a9e8ef46
Impacted products
Vendor Product Version
Linux Linux Version: 6.11
Show details on NVD website

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/nfs/blocklayout/dev.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "3402704a424f34bbcca7f4a4503859357f422217",
              "status": "affected",
              "version": "d869da91cccb90320e101a2758f1e2b3803ade5c",
              "versionType": "git"
            },
            {
              "lessThan": "faa4bacfaeed827a4ca8cb8529a3ce65a9e8ef46",
              "status": "affected",
              "version": "d869da91cccb90320e101a2758f1e2b3803ade5c",
              "versionType": "git"
            },
            {
              "lessThan": "3a4ce14d9a6b868e0787e4582420b721c04ee41e",
              "status": "affected",
              "version": "d869da91cccb90320e101a2758f1e2b3803ade5c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/nfs/blocklayout/dev.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.11"
            },
            {
              "lessThan": "6.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.13-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfs/blocklayout: Don\u0027t attempt unregister for invalid block device\n\nSince commit d869da91cccb (\"nfs/blocklayout: Fix premature PR key\nunregistration\") an unmount of a pNFS SCSI layout-enabled NFS may\ndereference a NULL block_device in:\n\n  bl_unregister_scsi+0x16/0xe0 [blocklayoutdriver]\n  bl_free_device+0x70/0x80 [blocklayoutdriver]\n  bl_free_deviceid_node+0x12/0x30 [blocklayoutdriver]\n  nfs4_put_deviceid_node+0x60/0xc0 [nfsv4]\n  nfs4_deviceid_purge_client+0x132/0x190 [nfsv4]\n  unset_pnfs_layoutdriver+0x59/0x60 [nfsv4]\n  nfs4_destroy_server+0x36/0x70 [nfsv4]\n  nfs_free_server+0x23/0xe0 [nfs]\n  deactivate_locked_super+0x30/0xb0\n  cleanup_mnt+0xba/0x150\n  task_work_run+0x59/0x90\n  syscall_exit_to_user_mode+0x217/0x220\n  do_syscall_64+0x8e/0x160\n\nThis happens because even though we were able to create the\nnfs4_deviceid_node, the lookup for the device was unable to attach the\nblock device to the pnfs_block_dev.\n\nIf we never found a block device to register, we can avoid this case with\nthe PNFS_BDEV_REGISTERED flag.  Move the deref behind the test for the\nflag."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-27T13:49:13.201Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/3402704a424f34bbcca7f4a4503859357f422217"
        },
        {
          "url": "https://git.kernel.org/stable/c/faa4bacfaeed827a4ca8cb8529a3ce65a9e8ef46"
        },
        {
          "url": "https://git.kernel.org/stable/c/3a4ce14d9a6b868e0787e4582420b721c04ee41e"
        }
      ],
      "title": "nfs/blocklayout: Don\u0027t attempt unregister for invalid block device",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-53167",
    "datePublished": "2024-12-27T13:49:13.201Z",
    "dateReserved": "2024-11-19T17:17:25.005Z",
    "dateUpdated": "2024-12-27T13:49:13.201Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-53167\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-12-27T14:15:23.820\",\"lastModified\":\"2024-12-27T14:15:23.820\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnfs/blocklayout: Don\u0027t attempt unregister for invalid block device\\n\\nSince commit d869da91cccb (\\\"nfs/blocklayout: Fix premature PR key\\nunregistration\\\") an unmount of a pNFS SCSI layout-enabled NFS may\\ndereference a NULL block_device in:\\n\\n  bl_unregister_scsi+0x16/0xe0 [blocklayoutdriver]\\n  bl_free_device+0x70/0x80 [blocklayoutdriver]\\n  bl_free_deviceid_node+0x12/0x30 [blocklayoutdriver]\\n  nfs4_put_deviceid_node+0x60/0xc0 [nfsv4]\\n  nfs4_deviceid_purge_client+0x132/0x190 [nfsv4]\\n  unset_pnfs_layoutdriver+0x59/0x60 [nfsv4]\\n  nfs4_destroy_server+0x36/0x70 [nfsv4]\\n  nfs_free_server+0x23/0xe0 [nfs]\\n  deactivate_locked_super+0x30/0xb0\\n  cleanup_mnt+0xba/0x150\\n  task_work_run+0x59/0x90\\n  syscall_exit_to_user_mode+0x217/0x220\\n  do_syscall_64+0x8e/0x160\\n\\nThis happens because even though we were able to create the\\nnfs4_deviceid_node, the lookup for the device was unable to attach the\\nblock device to the pnfs_block_dev.\\n\\nIf we never found a block device to register, we can avoid this case with\\nthe PNFS_BDEV_REGISTERED flag.  Move the deref behind the test for the\\nflag.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/3402704a424f34bbcca7f4a4503859357f422217\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3a4ce14d9a6b868e0787e4582420b721c04ee41e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/faa4bacfaeed827a4ca8cb8529a3ce65a9e8ef46\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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