cve-2021-47090
Vulnerability from cvelistv5
Published
2024-03-04 18:10
Modified
2024-11-04 11:59
Severity ?
Summary
mm/hwpoison: clear MF_COUNT_INCREASED before retrying get_any_page()
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1f207076740101fed87074a6bc924dbe806f08a5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2a57d83c78f889bf3f54eede908d0643c40d5418
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c691e7575eff76e563b0199c23ec46bd454f43e3
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-47090",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-06-26T20:39:00.892083Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-26T20:40:06.570Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T05:24:39.860Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/1f207076740101fed87074a6bc924dbe806f08a5"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/c691e7575eff76e563b0199c23ec46bd454f43e3"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/2a57d83c78f889bf3f54eede908d0643c40d5418"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "mm/memory-failure.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "1f2070767401",
              "status": "affected",
              "version": "b94e02822deb",
              "versionType": "git"
            },
            {
              "lessThan": "c691e7575eff",
              "status": "affected",
              "version": "b94e02822deb",
              "versionType": "git"
            },
            {
              "lessThan": "2a57d83c78f8",
              "status": "affected",
              "version": "b94e02822deb",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "mm/memory-failure.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.10"
            },
            {
              "lessThan": "5.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.89",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/hwpoison: clear MF_COUNT_INCREASED before retrying get_any_page()\n\nHulk Robot reported a panic in put_page_testzero() when testing\nmadvise() with MADV_SOFT_OFFLINE.  The BUG() is triggered when retrying\nget_any_page().  This is because we keep MF_COUNT_INCREASED flag in\nsecond try but the refcnt is not increased.\n\n    page dumped because: VM_BUG_ON_PAGE(page_ref_count(page) == 0)\n    ------------[ cut here ]------------\n    kernel BUG at include/linux/mm.h:737!\n    invalid opcode: 0000 [#1] PREEMPT SMP\n    CPU: 5 PID: 2135 Comm: sshd Tainted: G    B             5.16.0-rc6-dirty #373\n    Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014\n    RIP: release_pages+0x53f/0x840\n    Call Trace:\n      free_pages_and_swap_cache+0x64/0x80\n      tlb_flush_mmu+0x6f/0x220\n      unmap_page_range+0xe6c/0x12c0\n      unmap_single_vma+0x90/0x170\n      unmap_vmas+0xc4/0x180\n      exit_mmap+0xde/0x3a0\n      mmput+0xa3/0x250\n      do_exit+0x564/0x1470\n      do_group_exit+0x3b/0x100\n      __do_sys_exit_group+0x13/0x20\n      __x64_sys_exit_group+0x16/0x20\n      do_syscall_64+0x34/0x80\n      entry_SYSCALL_64_after_hwframe+0x44/0xae\n    Modules linked in:\n    ---[ end trace e99579b570fe0649 ]---\n    RIP: 0010:release_pages+0x53f/0x840"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-04T11:59:12.717Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/1f207076740101fed87074a6bc924dbe806f08a5"
        },
        {
          "url": "https://git.kernel.org/stable/c/c691e7575eff76e563b0199c23ec46bd454f43e3"
        },
        {
          "url": "https://git.kernel.org/stable/c/2a57d83c78f889bf3f54eede908d0643c40d5418"
        }
      ],
      "title": "mm/hwpoison: clear MF_COUNT_INCREASED before retrying get_any_page()",
      "x_generator": {
        "engine": "bippy-9e1c9544281a"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47090",
    "datePublished": "2024-03-04T18:10:28.887Z",
    "dateReserved": "2024-02-29T22:33:44.300Z",
    "dateUpdated": "2024-11-04T11:59:12.717Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47090\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-03-04T18:15:07.610\",\"lastModified\":\"2024-03-05T13:41:01.900\",\"vulnStatus\":\"Awaiting Analysis\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmm/hwpoison: clear MF_COUNT_INCREASED before retrying get_any_page()\\n\\nHulk Robot reported a panic in put_page_testzero() when testing\\nmadvise() with MADV_SOFT_OFFLINE.  The BUG() is triggered when retrying\\nget_any_page().  This is because we keep MF_COUNT_INCREASED flag in\\nsecond try but the refcnt is not increased.\\n\\n    page dumped because: VM_BUG_ON_PAGE(page_ref_count(page) == 0)\\n    ------------[ cut here ]------------\\n    kernel BUG at include/linux/mm.h:737!\\n    invalid opcode: 0000 [#1] PREEMPT SMP\\n    CPU: 5 PID: 2135 Comm: sshd Tainted: G    B             5.16.0-rc6-dirty #373\\n    Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014\\n    RIP: release_pages+0x53f/0x840\\n    Call Trace:\\n      free_pages_and_swap_cache+0x64/0x80\\n      tlb_flush_mmu+0x6f/0x220\\n      unmap_page_range+0xe6c/0x12c0\\n      unmap_single_vma+0x90/0x170\\n      unmap_vmas+0xc4/0x180\\n      exit_mmap+0xde/0x3a0\\n      mmput+0xa3/0x250\\n      do_exit+0x564/0x1470\\n      do_group_exit+0x3b/0x100\\n      __do_sys_exit_group+0x13/0x20\\n      __x64_sys_exit_group+0x16/0x20\\n      do_syscall_64+0x34/0x80\\n      entry_SYSCALL_64_after_hwframe+0x44/0xae\\n    Modules linked in:\\n    ---[ end trace e99579b570fe0649 ]---\\n    RIP: 0010:release_pages+0x53f/0x840\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: mm/hwpoison: borre MF_COUNT_INCREASED antes de volver a intentar get_any_page() Hulk Robot inform\u00f3 un p\u00e1nico en put_page_testzero() al probar madvise() con MADV_SOFT_OFFLINE. El ERROR() se activa al volver a intentar get_any_page(). Esto se debe a que mantenemos el indicador MF_COUNT_INCREASED en el segundo intento pero el refcnt no aumenta. p\u00e1gina volcada porque: VM_BUG_ON_PAGE(page_ref_count(page) == 0) ------------[ cortar aqu\u00ed ]------------ ERROR del kernel en include/linux/mm .h:737! c\u00f3digo de operaci\u00f3n no v\u00e1lido: 0000 [#1] PREEMPT SMP CPU: 5 PID: 2135 Comm: sshd Contaminado: GB 5.16.0-rc6-dirty #373 Nombre de hardware: PC est\u00e1ndar QEMU (i440FX + PIIX, 1996), BIOS 1.13.0- 1ubuntu1.1 01/04/2014 RIP: release_pages+0x53f/0x840 Seguimiento de llamadas: free_pages_and_swap_cache+0x64/0x80 tlb_flush_mmu+0x6f/0x220 unmap_page_range+0xe6c/0x12c0 unmap_single_vma+0x90/0x170 unmap _vmas+0xc4/0x180 salida_mmap+0xde/0x3a0 mmput+ 0xa3/0x250 do_exit+0x564/0x1470 do_group_exit+0x3b/0x100 __do_sys_exit_group+0x13/0x20 __x64_sys_exit_group+0x16/0x20 do_syscall_64+0x34/0x80 Entry_SYSCALL_64_after_hwframe+ 0x44/0xae M\u00f3dulos vinculados en: ---[ end trace e99579b570fe0649 ]--- RIP: 0010:p\u00e1ginas_de_liberaci\u00f3n+0x53f/0x840\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1f207076740101fed87074a6bc924dbe806f08a5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/2a57d83c78f889bf3f54eede908d0643c40d5418\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c691e7575eff76e563b0199c23ec46bd454f43e3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.