CVE-2022-49270 (GCVE-0-2022-49270)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:56 – Updated: 2026-05-11 18:56
VLAI
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: <TASK> 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
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-27 18:16 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: bb37d77239af25cde59693dbe3fac04dd17d7b29 , < 0987f00a76a17aa7213da492c00ed9e5a6210c73 (git)
Affected: bb37d77239af25cde59693dbe3fac04dd17d7b29 , < fdfe414ca28ddfd562c233fb27385cf820de03e8 (git)
Affected: bb37d77239af25cde59693dbe3fac04dd17d7b29 , < 43a043aed964659bc69ef81f266912b73c80d837 (git)
Affected: bb37d77239af25cde59693dbe3fac04dd17d7b29 , < 588b7f5df0cb64f281290c7672470c006abe7160 (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.14
Unaffected: 0 , < 5.14 (semver)
Unaffected: 5.15.33 , ≤ 5.15.* (semver)
Unaffected: 5.16.19 , ≤ 5.16.* (semver)
Unaffected: 5.17.2 , ≤ 5.17.* (semver)
Unaffected: 5.18 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm: fix use-after-free in dm_cleanup_zoned_dev()\n\ndm_cleanup_zoned_dev() uses queue, so it must be called\nbefore blk_cleanup_disk() starts its killing:\n\nblk_cleanup_disk-\u003eblk_cleanup_queue()-\u003ekobject_put()-\u003eblk_release_queue()-\u003e\n-\u003e...RCU...-\u003eblk_free_queue_rcu()-\u003ekmem_cache_free()\n\nOtherwise, RCU callback may be executed first and\ndm_cleanup_zoned_dev() will touch free\u0027d memory:\n\n BUG: KASAN: use-after-free in dm_cleanup_zoned_dev+0x33/0xd0\n Read of size 8 at addr ffff88805ac6e430 by task dmsetup/681\n\n CPU: 4 PID: 681 Comm: dmsetup Not tainted 5.17.0-rc2+ #6\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014\n Call Trace:\n  \u003cTASK\u003e\n  dump_stack_lvl+0x57/0x7d\n  print_address_description.constprop.0+0x1f/0x150\n  ? dm_cleanup_zoned_dev+0x33/0xd0\n  kasan_report.cold+0x7f/0x11b\n  ? dm_cleanup_zoned_dev+0x33/0xd0\n  dm_cleanup_zoned_dev+0x33/0xd0\n  __dm_destroy+0x26a/0x400\n  ? dm_blk_ioctl+0x230/0x230\n  ? up_write+0xd8/0x270\n  dev_remove+0x156/0x1d0\n  ctl_ioctl+0x269/0x530\n  ? table_clear+0x140/0x140\n  ? lock_release+0xb2/0x750\n  ? remove_all+0x40/0x40\n  ? rcu_read_lock_sched_held+0x12/0x70\n  ? lock_downgrade+0x3c0/0x3c0\n  ? rcu_read_lock_sched_held+0x12/0x70\n  dm_ctl_ioctl+0xa/0x10\n  __x64_sys_ioctl+0xb9/0xf0\n  do_syscall_64+0x3b/0x90\n  entry_SYSCALL_64_after_hwframe+0x44/0xae\n RIP: 0033:0x7fb6dfa95c27"
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            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: dm: se corrige el use-after-free en dm_cleanup_zoned_dev() dm_cleanup_zoned_dev() usa cola, por lo que debe llamarse antes de que blk_cleanup_disk() comience su eliminaci\u00f3n: blk_cleanup_disk-\u0026gt;blk_cleanup_queue()-\u0026gt;kobject_put()-\u0026gt;blk_release_queue()-\u0026gt; -\u0026gt;...RCU...-\u0026gt;blk_free_queue_rcu()-\u0026gt;kmem_cache_free() De lo contrario, la devoluci\u00f3n de llamada RCU se puede ejecutar primero y dm_cleanup_zoned_dev() tocar\u00e1 la memoria liberada: ERROR: KASAN: use-after-free en dm_cleanup_zoned_dev+0x33/0xd0 Lectura de tama\u00f1o 8 en la direcci\u00f3n ffff88805ac6e430 por la tarea dmsetup/681 CPU: 4 PID: 681 Comm: dmsetup No contaminado 5.17.0-rc2+ #6 Nombre del hardware: PC est\u00e1ndar QEMU (i440FX + PIIX, 1996), BIOS 1.14.0-2 01/04/2014 Seguimiento de llamadas:  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"
          }
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        "id": "CVE-2022-49270",
        "lastModified": "2026-06-17T05:17:33.393",
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        "published": "2025-02-26T07:01:03.907",
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            "url": "https://git.kernel.org/stable/c/fdfe414ca28ddfd562c233fb27385cf820de03e8"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-416"
              }
            ],
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-29T21:02:42+00:00",
      "cve": "CVE-2022-49270",
      "id": "CVE-2022-49270",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:fixed": "300",
      "product_status:known_not_affected": "188",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: dm: fix use-after-free in dm_cleanup_zoned_dev()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-49270.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-08-29T02:29:12Z",
      "cve": "CVE-2022-49270",
      "id": "CVE-2022-49270",
      "initial_release_date": "2025-02-27T03:09:40Z",
      "product_status:known_affected": "334",
      "product_status:known_not_affected": "402",
      "product_status:recommended": "245",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-49270",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-49270.json",
      "version": "45"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "cvssV3_1": {
                  "attackComplexity": "LOW",
                  "attackVector": "LOCAL",
                  "availabilityImpact": "HIGH",
                  "baseScore": 7.8,
                  "baseSeverity": "HIGH",
                  "confidentialityImpact": "HIGH",
                  "integrityImpact": "HIGH",
                  "privilegesRequired": "LOW",
                  "scope": "UNCHANGED",
                  "userInteraction": "NONE",
                  "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "version": "3.1"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2022-49270",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2025-02-27T18:16:55.271520Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "cweId": "CWE-416",
                    "description": "CWE-416 Use After Free",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2025-02-27T18:16:56.565Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "drivers/md/dm.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "0987f00a76a17aa7213da492c00ed9e5a6210c73",
                  "status": "affected",
                  "version": "bb37d77239af25cde59693dbe3fac04dd17d7b29",
                  "versionType": "git"
                },
                {
                  "lessThan": "fdfe414ca28ddfd562c233fb27385cf820de03e8",
                  "status": "affected",
                  "version": "bb37d77239af25cde59693dbe3fac04dd17d7b29",
                  "versionType": "git"
                },
                {
                  "lessThan": "43a043aed964659bc69ef81f266912b73c80d837",
                  "status": "affected",
                  "version": "bb37d77239af25cde59693dbe3fac04dd17d7b29",
                  "versionType": "git"
                },
                {
                  "lessThan": "588b7f5df0cb64f281290c7672470c006abe7160",
                  "status": "affected",
                  "version": "bb37d77239af25cde59693dbe3fac04dd17d7b29",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/md/dm.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "5.14"
                },
                {
                  "lessThan": "5.14",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.15.*",
                  "status": "unaffected",
                  "version": "5.15.33",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.16.*",
                  "status": "unaffected",
                  "version": "5.16.19",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.17.*",
                  "status": "unaffected",
                  "version": "5.17.2",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "5.18",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.15.33",
                      "versionStartIncluding": "5.14",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.16.19",
                      "versionStartIncluding": "5.14",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.17.2",
                      "versionStartIncluding": "5.14",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.18",
                      "versionStartIncluding": "5.14",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm: fix use-after-free in dm_cleanup_zoned_dev()\n\ndm_cleanup_zoned_dev() uses queue, so it must be called\nbefore blk_cleanup_disk() starts its killing:\n\nblk_cleanup_disk-\u003eblk_cleanup_queue()-\u003ekobject_put()-\u003eblk_release_queue()-\u003e\n-\u003e...RCU...-\u003eblk_free_queue_rcu()-\u003ekmem_cache_free()\n\nOtherwise, RCU callback may be executed first and\ndm_cleanup_zoned_dev() will touch free\u0027d memory:\n\n BUG: KASAN: use-after-free in dm_cleanup_zoned_dev+0x33/0xd0\n Read of size 8 at addr ffff88805ac6e430 by task dmsetup/681\n\n CPU: 4 PID: 681 Comm: dmsetup Not tainted 5.17.0-rc2+ #6\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014\n Call Trace:\n  \u003cTASK\u003e\n  dump_stack_lvl+0x57/0x7d\n  print_address_description.constprop.0+0x1f/0x150\n  ? dm_cleanup_zoned_dev+0x33/0xd0\n  kasan_report.cold+0x7f/0x11b\n  ? dm_cleanup_zoned_dev+0x33/0xd0\n  dm_cleanup_zoned_dev+0x33/0xd0\n  __dm_destroy+0x26a/0x400\n  ? dm_blk_ioctl+0x230/0x230\n  ? up_write+0xd8/0x270\n  dev_remove+0x156/0x1d0\n  ctl_ioctl+0x269/0x530\n  ? table_clear+0x140/0x140\n  ? lock_release+0xb2/0x750\n  ? remove_all+0x40/0x40\n  ? rcu_read_lock_sched_held+0x12/0x70\n  ? lock_downgrade+0x3c0/0x3c0\n  ? rcu_read_lock_sched_held+0x12/0x70\n  dm_ctl_ioctl+0xa/0x10\n  __x64_sys_ioctl+0xb9/0xf0\n  do_syscall_64+0x3b/0x90\n  entry_SYSCALL_64_after_hwframe+0x44/0xae\n RIP: 0033:0x7fb6dfa95c27"
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-11T18:56:26.788Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/0987f00a76a17aa7213da492c00ed9e5a6210c73"
            },
            {
              "url": "https://git.kernel.org/stable/c/fdfe414ca28ddfd562c233fb27385cf820de03e8"
            },
            {
              "url": "https://git.kernel.org/stable/c/43a043aed964659bc69ef81f266912b73c80d837"
            },
            {
              "url": "https://git.kernel.org/stable/c/588b7f5df0cb64f281290c7672470c006abe7160"
            }
          ],
          "title": "dm: fix use-after-free in dm_cleanup_zoned_dev()",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2022-49270",
        "datePublished": "2025-02-26T01:56:17.683Z",
        "dateReserved": "2025-02-26T01:49:39.297Z",
        "dateUpdated": "2026-05-11T18:56:26.788Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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