dm: fix use-after-free in dm_cleanup_zoned_dev()

{
  "id": "0ac2ba66549ee7f5fcc037add99f27dc84ba840f751055e8e52614676362cea9",
  "url": "https://osv.dev/vulnerability/CVE-2022-49270",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "dm: fix use-after-free in dm_cleanup_zoned_dev()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: dm: fix use-after-free in dm_cleanup_zoned_dev() dm_cleanup_zoned_dev() uses queue, so it must be called before blk_cleanup_disk() starts its killing: blk_cleanup_disk->blk_cleanup_queue()->kobject_put()->blk_release_queue()-> ->...RCU...->blk_free_queue_rcu()->kmem_cache_free() Otherwise, RCU callback may be executed first and dm_cleanup_zoned_dev() will touch free'd memory: BUG: KASAN: use-after-free in dm_cleanup_zoned_dev+0x33/0xd0 Read of size 8 at addr ffff88805ac6e430 by task dmsetup/681 CPU: 4 PID: 681 Comm: dmsetup Not tainted 5.17.0-rc2+ #6 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014 Call Trace: dump_stack_lvl+0x57/0x7d print_address_description.constprop.0+0x1f/0x150 ? dm_cleanup_zoned_dev+0x33/0xd0 kasan_report.cold+0x7f/0x11b ? dm_cleanup_zoned_dev+0x33/0xd0 dm_cleanup_zoned_dev+0x33/0xd0 __dm_destroy+0x26a/0x400 ? dm_blk_ioctl+0x230/0x230 ? up_write+0xd8/0x270 dev_remove+0x156/0x1d0 ctl_ioctl+0x269/0x530 ? table_clear+0x140/0x140 ? lock_release+0xb2/0x750 ? remove_all+0x40/0x40 ? rcu_read_lock_sched_held+0x12/0x70 ? lock_downgrade+0x3c0/0x3c0 ? rcu_read_lock_sched_held+0x12/0x70 dm_ctl_ioctl+0xa/0x10 __x64_sys_ioctl+0xb9/0xf0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fb6dfa95c27",
    "evidence": "osv:CVE-2022-49270",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.15.33",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.16.19",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.17.2",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2022-49270",
      "aliases": [
        "CVE-2022-49270"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "bb37d77239af25cde59693dbe3fac04dd17d7b29"
                },
                {
                  "fixed": "0987f00a76a17aa7213da492c00ed9e5a6210c73"
                },
                {
                  "fixed": "fdfe414ca28ddfd562c233fb27385cf820de03e8"
                },
                {
                  "fixed": "43a043aed964659bc69ef81f266912b73c80d837"
                },
                {
                  "fixed": "588b7f5df0cb64f281290c7672470c006abe7160"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49270.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.14.0"
                },
                {
                  "fixed": "5.15.33"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "5.16.19"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.17.0"
                },
                {
                  "fixed": "5.17.2"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49270.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:25.020926947Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0987f00a76a17aa7213da492c00ed9e5a6210c73",
        "https://git.kernel.org/stable/c/43a043aed964659bc69ef81f266912b73c80d837",
        "https://git.kernel.org/stable/c/588b7f5df0cb64f281290c7672470c006abe7160",
        "https://git.kernel.org/stable/c/fdfe414ca28ddfd562c233fb27385cf820de03e8",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49270.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-49270",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49270.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-49270",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 491284,
  "published_at": "2025-02-26T01:56:17.683+00:00"
}