CVE-2021-47503 (GCVE-0-2021-47503)

Vulnerability from cvelistv5 – Published: 2024-05-24 15:01 – Updated: 2026-05-11 13:55
VLAI
Title
scsi: pm80xx: Do not call scsi_remove_host() in pm8001_alloc()
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: pm80xx: Do not call scsi_remove_host() in pm8001_alloc() Calling scsi_remove_host() before scsi_add_host() results in a crash: BUG: kernel NULL pointer dereference, address: 0000000000000108 RIP: 0010:device_del+0x63/0x440 Call Trace: device_unregister+0x17/0x60 scsi_remove_host+0xee/0x2a0 pm8001_pci_probe+0x6ef/0x1b90 [pm80xx] local_pci_probe+0x3f/0x90 We cannot call scsi_remove_host() in pm8001_alloc() because scsi_add_host() has not been called yet at that point in time. Function call tree: pm8001_pci_probe() | `- pm8001_pci_alloc() | | | `- pm8001_alloc() | | | `- scsi_remove_host() | `- scsi_add_host()
Severity
6.2 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-05-28 15:53 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 05c6c029a44d9f43715577e33e95eba87f44d285 , < 1e434d2687e8bc0b3cdc9dd093c0e9047c0b4add (git)
Affected: 05c6c029a44d9f43715577e33e95eba87f44d285 , < f8dccc1bdea7e21b5ec06c957aef8831c772661c (git)
Affected: 05c6c029a44d9f43715577e33e95eba87f44d285 , < 653926205741add87a6cf452e21950eebc6ac10b (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.10
Unaffected: 0 , < 5.10 (semver)
Unaffected: 5.10.85 , ≤ 5.10.* (semver)
Unaffected: 5.15.8 , ≤ 5.15.* (semver)
Unaffected: 5.16 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
linux linux_kernel Affected: 05c6c029a44d , < 1e434d2687e8 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
Create a notification for this product.
linux linux_kernel Affected: 05c6c029a44d , < f8dccc1bdea7 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
Create a notification for this product.
linux linux_kernel Affected: f8dccc1bdea7 , < 653926205741 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
Create a notification for this product.
linux linux_kernel Unaffected: 0 , < 5.10 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
Create a notification for this product.
linux linux_kernel Unaffected: 5.10.85 , < 5.11 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
Create a notification for this product.
linux linux_kernel Unaffected: 5.15.8 , ≤ 5.16 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
Create a notification for this product.
linux linux_kernel Unaffected: 5.16
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
Create a notification for this product.
linux linux_kernel Affected: 5.10
    cpe:2.3:o:linux:linux_kernel:5.10:-:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "linux_kernel",
            "vendor": "linux",
            "versions": [
              {
                "lessThan": "1e434d2687e8 ",
                "status": "affected",
                "version": "05c6c029a44d",
                "versionType": "custom"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "linux_kernel",
            "vendor": "linux",
            "versions": [
              {
                "lessThan": "f8dccc1bdea7 ",
                "status": "affected",
                "version": "05c6c029a44d",
                "versionType": "custom"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "linux_kernel",
            "vendor": "linux",
            "versions": [
              {
                "lessThan": "653926205741 ",
                "status": "affected",
                "version": "f8dccc1bdea7 ",
                "versionType": "custom"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "linux_kernel",
            "vendor": "linux",
            "versions": [
              {
                "lessThan": "5.10",
                "status": "unaffected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "linux_kernel",
            "vendor": "linux",
            "versions": [
              {
                "lessThan": "5.11",
                "status": "unaffected",
                "version": "5.10.85",
                "versionType": "custom"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "linux_kernel",
            "vendor": "linux",
            "versions": [
              {
                "lessThanOrEqual": "5.16",
                "status": "unaffected",
                "version": "5.15.8",
                "versionType": "custom"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "linux_kernel",
            "vendor": "linux",
            "versions": [
              {
                "status": "unaffected",
                "version": "5.16"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:linux:linux_kernel:5.10:-:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "linux_kernel",
            "vendor": "linux",
            "versions": [
              {
                "status": "affected",
                "version": "5.10"
              }
            ]
          }
        ],
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 6.2,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2021-47503",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-05-28T15:53:11.089005Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-476",
                "description": "CWE-476 NULL Pointer Dereference",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-06T19:58:15.985Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T05:39:59.785Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/1e434d2687e8bc0b3cdc9dd093c0e9047c0b4add"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/f8dccc1bdea7e21b5ec06c957aef8831c772661c"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/653926205741add87a6cf452e21950eebc6ac10b"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/scsi/pm8001/pm8001_init.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "1e434d2687e8bc0b3cdc9dd093c0e9047c0b4add",
              "status": "affected",
              "version": "05c6c029a44d9f43715577e33e95eba87f44d285",
              "versionType": "git"
            },
            {
              "lessThan": "f8dccc1bdea7e21b5ec06c957aef8831c772661c",
              "status": "affected",
              "version": "05c6c029a44d9f43715577e33e95eba87f44d285",
              "versionType": "git"
            },
            {
              "lessThan": "653926205741add87a6cf452e21950eebc6ac10b",
              "status": "affected",
              "version": "05c6c029a44d9f43715577e33e95eba87f44d285",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/scsi/pm8001/pm8001_init.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": "5.10.85",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.85",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.8",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.16",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: pm80xx: Do not call scsi_remove_host() in pm8001_alloc()\n\nCalling scsi_remove_host() before scsi_add_host() results in a crash:\n\n BUG: kernel NULL pointer dereference, address: 0000000000000108\n RIP: 0010:device_del+0x63/0x440\n Call Trace:\n  device_unregister+0x17/0x60\n  scsi_remove_host+0xee/0x2a0\n  pm8001_pci_probe+0x6ef/0x1b90 [pm80xx]\n  local_pci_probe+0x3f/0x90\n\nWe cannot call scsi_remove_host() in pm8001_alloc() because scsi_add_host()\nhas not been called yet at that point in time.\n\nFunction call tree:\n\n  pm8001_pci_probe()\n  |\n  `- pm8001_pci_alloc()\n  |  |\n  |  `- pm8001_alloc()\n  |     |\n  |     `- scsi_remove_host()\n  |\n  `- scsi_add_host()"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T13:55:54.579Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/1e434d2687e8bc0b3cdc9dd093c0e9047c0b4add"
        },
        {
          "url": "https://git.kernel.org/stable/c/f8dccc1bdea7e21b5ec06c957aef8831c772661c"
        },
        {
          "url": "https://git.kernel.org/stable/c/653926205741add87a6cf452e21950eebc6ac10b"
        }
      ],
      "title": "scsi: pm80xx: Do not call scsi_remove_host() in pm8001_alloc()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47503",
    "datePublished": "2024-05-24T15:01:50.358Z",
    "dateReserved": "2024-05-22T06:20:56.205Z",
    "dateUpdated": "2026-05-11T13:55:54.579Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2021-47503",
      "date": "2026-09-28",
      "epss": "0.00248",
      "percentile": "0.14468"
    },
    "fkie_nvd": {
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: pm80xx: Do not call scsi_remove_host() in pm8001_alloc()\n\nCalling scsi_remove_host() before scsi_add_host() results in a crash:\n\n BUG: kernel NULL pointer dereference, address: 0000000000000108\n RIP: 0010:device_del+0x63/0x440\n Call Trace:\n  device_unregister+0x17/0x60\n  scsi_remove_host+0xee/0x2a0\n  pm8001_pci_probe+0x6ef/0x1b90 [pm80xx]\n  local_pci_probe+0x3f/0x90\n\nWe cannot call scsi_remove_host() in pm8001_alloc() because scsi_add_host()\nhas not been called yet at that point in time.\n\nFunction call tree:\n\n  pm8001_pci_probe()\n  |\n  `- pm8001_pci_alloc()\n  |  |\n  |  `- pm8001_alloc()\n  |     |\n  |     `- scsi_remove_host()\n  |\n  `- scsi_add_host()"
        },
        {
          "lang": "es",
          "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: pm80xx: No llamar a scsi_remove_host() en pm8001_alloc() Llamar a scsi_remove_host() antes de scsi_add_host() produce un bloqueo: ERROR: desreferencia del puntero NULL del kernel, direcci\u00f3n: 00000000000000108 RIP : 0010:device_del+0x63/0x440 Seguimiento de llamadas: device_unregister+0x17/0x60 scsi_remove_host+0xee/0x2a0 pm8001_pci_probe+0x6ef/0x1b90 [pm80xx] local_pci_probe+0x3f/0x90 No podemos llamar a scsi_remove_host() en pm8001_ alloc() porque scsi_add_host() no lo ha hecho sido llamado todav\u00eda en ese momento. \u00c1rbol de llamadas a funciones: pm8001_pci_probe() | `- pm8001_pci_alloc() | | | `- pm8001_alloc() | | | `- scsi_remove_host() | `- scsi_add_host()"
        }
      ],
      "id": "CVE-2021-47503",
      "lastModified": "2024-11-21T06:36:21.450",
      "metrics": {
        "cvssMetricV31": [
          {
            "cvssData": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 6.2,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            },
            "exploitabilityScore": 2.5,
            "impactScore": 3.6,
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "type": "Secondary"
          }
        ]
      },
      "published": "2024-05-24T15:15:10.567",
      "references": [
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/1e434d2687e8bc0b3cdc9dd093c0e9047c0b4add"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/653926205741add87a6cf452e21950eebc6ac10b"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/f8dccc1bdea7e21b5ec06c957aef8831c772661c"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://git.kernel.org/stable/c/1e434d2687e8bc0b3cdc9dd093c0e9047c0b4add"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://git.kernel.org/stable/c/653926205741add87a6cf452e21950eebc6ac10b"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://git.kernel.org/stable/c/f8dccc1bdea7e21b5ec06c957aef8831c772661c"
        }
      ],
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Awaiting Analysis",
      "weaknesses": [
        {
          "description": [
            {
              "lang": "en",
              "value": "CWE-476"
            }
          ],
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "type": "Secondary"
        }
      ]
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/scsi/pm8001/pm8001_init.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "1e434d2687e8bc0b3cdc9dd093c0e9047c0b4add",
                    "status": "affected",
                    "version": "05c6c029a44d9f43715577e33e95eba87f44d285",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "f8dccc1bdea7e21b5ec06c957aef8831c772661c",
                    "status": "affected",
                    "version": "05c6c029a44d9f43715577e33e95eba87f44d285",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "653926205741add87a6cf452e21950eebc6ac10b",
                    "status": "affected",
                    "version": "05c6c029a44d9f43715577e33e95eba87f44d285",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "drivers/scsi/pm8001/pm8001_init.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": "5.10.85",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.15.*",
                    "status": "unaffected",
                    "version": "5.15.8",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "5.16",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          },
          {
            "affectedData": [
              {
                "cpes": [
                  "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
                ],
                "defaultStatus": "unknown",
                "product": "linux_kernel",
                "vendor": "linux",
                "versions": [
                  {
                    "lessThan": "1e434d2687e8 ",
                    "status": "affected",
                    "version": "05c6c029a44d",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "cpes": [
                  "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
                ],
                "defaultStatus": "unknown",
                "product": "linux_kernel",
                "vendor": "linux",
                "versions": [
                  {
                    "lessThan": "f8dccc1bdea7 ",
                    "status": "affected",
                    "version": "05c6c029a44d",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "cpes": [
                  "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
                ],
                "defaultStatus": "unknown",
                "product": "linux_kernel",
                "vendor": "linux",
                "versions": [
                  {
                    "lessThan": "653926205741 ",
                    "status": "affected",
                    "version": "f8dccc1bdea7 ",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "cpes": [
                  "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
                ],
                "defaultStatus": "unknown",
                "product": "linux_kernel",
                "vendor": "linux",
                "versions": [
                  {
                    "lessThan": "5.10",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "cpes": [
                  "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
                ],
                "defaultStatus": "unknown",
                "product": "linux_kernel",
                "vendor": "linux",
                "versions": [
                  {
                    "lessThan": "5.11",
                    "status": "unaffected",
                    "version": "5.10.85",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "cpes": [
                  "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
                ],
                "defaultStatus": "unknown",
                "product": "linux_kernel",
                "vendor": "linux",
                "versions": [
                  {
                    "lessThanOrEqual": "5.16",
                    "status": "unaffected",
                    "version": "5.15.8",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "cpes": [
                  "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
                ],
                "defaultStatus": "unknown",
                "product": "linux_kernel",
                "vendor": "linux",
                "versions": [
                  {
                    "status": "unaffected",
                    "version": "5.16"
                  }
                ]
              },
              {
                "cpes": [
                  "cpe:2.3:o:linux:linux_kernel:5.10:-:*:*:*:*:*:*"
                ],
                "defaultStatus": "unknown",
                "product": "linux_kernel",
                "vendor": "linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "5.10"
                  }
                ]
              }
            ],
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "9E864355-2799-406B-9254-AC1AA59C2904",
                    "versionEndExcluding": "5.10.85",
                    "versionStartIncluding": "5.10",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "6664ACE2-F748-4AE5-B98B-58803B0B2C3E",
                    "versionEndExcluding": "5.15.8",
                    "versionStartIncluding": "5.11",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:*",
                    "matchCriteriaId": "357AA433-37E8-4323-BFB2-3038D6E4B414",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:5.16:rc2:*:*:*:*:*:*",
                    "matchCriteriaId": "A73429BA-C2D9-4D0C-A75F-06A1CA8B3983",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:5.16:rc3:*:*:*:*:*:*",
                    "matchCriteriaId": "F621B5E3-E99D-49E7-90B9-EC3B77C95383",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:5.16:rc4:*:*:*:*:*:*",
                    "matchCriteriaId": "F7BFDCAA-1650-49AA-8462-407DD593F94F",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: pm80xx: Do not call scsi_remove_host() in pm8001_alloc()\n\nCalling scsi_remove_host() before scsi_add_host() results in a crash:\n\n BUG: kernel NULL pointer dereference, address: 0000000000000108\n RIP: 0010:device_del+0x63/0x440\n Call Trace:\n  device_unregister+0x17/0x60\n  scsi_remove_host+0xee/0x2a0\n  pm8001_pci_probe+0x6ef/0x1b90 [pm80xx]\n  local_pci_probe+0x3f/0x90\n\nWe cannot call scsi_remove_host() in pm8001_alloc() because scsi_add_host()\nhas not been called yet at that point in time.\n\nFunction call tree:\n\n  pm8001_pci_probe()\n  |\n  `- pm8001_pci_alloc()\n  |  |\n  |  `- pm8001_alloc()\n  |     |\n  |     `- scsi_remove_host()\n  |\n  `- scsi_add_host()"
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: pm80xx: No llamar a scsi_remove_host() en pm8001_alloc() Llamar a scsi_remove_host() antes de scsi_add_host() produce un bloqueo: ERROR: desreferencia del puntero NULL del kernel, direcci\u00f3n: 00000000000000108 RIP : 0010:device_del+0x63/0x440 Seguimiento de llamadas: device_unregister+0x17/0x60 scsi_remove_host+0xee/0x2a0 pm8001_pci_probe+0x6ef/0x1b90 [pm80xx] local_pci_probe+0x3f/0x90 No podemos llamar a scsi_remove_host() en pm8001_ alloc() porque scsi_add_host() no lo ha hecho sido llamado todav\u00eda en ese momento. \u00c1rbol de llamadas a funciones: pm8001_pci_probe() | `- pm8001_pci_alloc() | | | `- pm8001_alloc() | | | `- scsi_remove_host() | `- scsi_add_host()"
          }
        ],
        "id": "CVE-2021-47503",
        "lastModified": "2026-06-17T04:17:38.543",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 6.2,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 2.5,
              "impactScore": 3.6,
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2021-47503",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-05-28T15:53:11.089005Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2024-05-24T15:15:10.567",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/1e434d2687e8bc0b3cdc9dd093c0e9047c0b4add"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/653926205741add87a6cf452e21950eebc6ac10b"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/f8dccc1bdea7e21b5ec06c957aef8831c772661c"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/1e434d2687e8bc0b3cdc9dd093c0e9047c0b4add"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/653926205741add87a6cf452e21950eebc6ac10b"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/f8dccc1bdea7e21b5ec06c957aef8831c772661c"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-476"
              }
            ],
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T14:33:33+00:00",
      "cve": "CVE-2021-47503",
      "id": "CVE-2021-47503",
      "initial_release_date": "2021-01-01T00:00:00+00:00",
      "product_status:known_affected": "42",
      "product_status:known_not_affected": "156",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: scsi: pm80xx: Do not call scsi_remove_host() in pm8001_alloc()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-47503.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-15T02:30:53Z",
      "cve": "CVE-2021-47503",
      "id": "CVE-2021-47503",
      "initial_release_date": "2024-05-28T03:32:56Z",
      "product_status:known_affected": "269",
      "product_status:known_not_affected": "224",
      "product_status:recommended": "543",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2021-47503",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2021-47503.json",
      "version": "56"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "providerMetadata": {
              "dateUpdated": "2024-08-04T05:39:59.785Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE"
            },
            "references": [
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/1e434d2687e8bc0b3cdc9dd093c0e9047c0b4add"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/f8dccc1bdea7e21b5ec06c957aef8831c772661c"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/653926205741add87a6cf452e21950eebc6ac10b"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "affected": [
              {
                "cpes": [
                  "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
                ],
                "defaultStatus": "unknown",
                "product": "linux_kernel",
                "vendor": "linux",
                "versions": [
                  {
                    "lessThan": "1e434d2687e8 ",
                    "status": "affected",
                    "version": "05c6c029a44d",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "cpes": [
                  "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
                ],
                "defaultStatus": "unknown",
                "product": "linux_kernel",
                "vendor": "linux",
                "versions": [
                  {
                    "lessThan": "f8dccc1bdea7 ",
                    "status": "affected",
                    "version": "05c6c029a44d",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "cpes": [
                  "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
                ],
                "defaultStatus": "unknown",
                "product": "linux_kernel",
                "vendor": "linux",
                "versions": [
                  {
                    "lessThan": "653926205741 ",
                    "status": "affected",
                    "version": "f8dccc1bdea7 ",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "cpes": [
                  "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
                ],
                "defaultStatus": "unknown",
                "product": "linux_kernel",
                "vendor": "linux",
                "versions": [
                  {
                    "lessThan": "5.10",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "cpes": [
                  "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
                ],
                "defaultStatus": "unknown",
                "product": "linux_kernel",
                "vendor": "linux",
                "versions": [
                  {
                    "lessThan": "5.11",
                    "status": "unaffected",
                    "version": "5.10.85",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "cpes": [
                  "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
                ],
                "defaultStatus": "unknown",
                "product": "linux_kernel",
                "vendor": "linux",
                "versions": [
                  {
                    "lessThanOrEqual": "5.16",
                    "status": "unaffected",
                    "version": "5.15.8",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "cpes": [
                  "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
                ],
                "defaultStatus": "unknown",
                "product": "linux_kernel",
                "vendor": "linux",
                "versions": [
                  {
                    "status": "unaffected",
                    "version": "5.16"
                  }
                ]
              },
              {
                "cpes": [
                  "cpe:2.3:o:linux:linux_kernel:5.10:-:*:*:*:*:*:*"
                ],
                "defaultStatus": "unknown",
                "product": "linux_kernel",
                "vendor": "linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "5.10"
                  }
                ]
              }
            ],
            "metrics": [
              {
                "cvssV3_1": {
                  "attackComplexity": "LOW",
                  "attackVector": "LOCAL",
                  "availabilityImpact": "HIGH",
                  "baseScore": 6.2,
                  "baseSeverity": "MEDIUM",
                  "confidentialityImpact": "NONE",
                  "integrityImpact": "NONE",
                  "privilegesRequired": "NONE",
                  "scope": "UNCHANGED",
                  "userInteraction": "NONE",
                  "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "version": "3.1"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2021-47503",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2024-05-28T15:53:11.089005Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "cweId": "CWE-476",
                    "description": "CWE-476 NULL Pointer Dereference",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2024-05-28T16:03:25.985Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "drivers/scsi/pm8001/pm8001_init.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "1e434d2687e8bc0b3cdc9dd093c0e9047c0b4add",
                  "status": "affected",
                  "version": "05c6c029a44d9f43715577e33e95eba87f44d285",
                  "versionType": "git"
                },
                {
                  "lessThan": "f8dccc1bdea7e21b5ec06c957aef8831c772661c",
                  "status": "affected",
                  "version": "05c6c029a44d9f43715577e33e95eba87f44d285",
                  "versionType": "git"
                },
                {
                  "lessThan": "653926205741add87a6cf452e21950eebc6ac10b",
                  "status": "affected",
                  "version": "05c6c029a44d9f43715577e33e95eba87f44d285",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/scsi/pm8001/pm8001_init.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": "5.10.85",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.15.*",
                  "status": "unaffected",
                  "version": "5.15.8",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "5.16",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.10.85",
                      "versionStartIncluding": "5.10",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.15.8",
                      "versionStartIncluding": "5.10",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.16",
                      "versionStartIncluding": "5.10",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: pm80xx: Do not call scsi_remove_host() in pm8001_alloc()\n\nCalling scsi_remove_host() before scsi_add_host() results in a crash:\n\n BUG: kernel NULL pointer dereference, address: 0000000000000108\n RIP: 0010:device_del+0x63/0x440\n Call Trace:\n  device_unregister+0x17/0x60\n  scsi_remove_host+0xee/0x2a0\n  pm8001_pci_probe+0x6ef/0x1b90 [pm80xx]\n  local_pci_probe+0x3f/0x90\n\nWe cannot call scsi_remove_host() in pm8001_alloc() because scsi_add_host()\nhas not been called yet at that point in time.\n\nFunction call tree:\n\n  pm8001_pci_probe()\n  |\n  `- pm8001_pci_alloc()\n  |  |\n  |  `- pm8001_alloc()\n  |     |\n  |     `- scsi_remove_host()\n  |\n  `- scsi_add_host()"
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-05-04T07:12:25.934Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/1e434d2687e8bc0b3cdc9dd093c0e9047c0b4add"
            },
            {
              "url": "https://git.kernel.org/stable/c/f8dccc1bdea7e21b5ec06c957aef8831c772661c"
            },
            {
              "url": "https://git.kernel.org/stable/c/653926205741add87a6cf452e21950eebc6ac10b"
            }
          ],
          "title": "scsi: pm80xx: Do not call scsi_remove_host() in pm8001_alloc()",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2021-47503",
        "datePublished": "2024-05-24T15:01:50.358Z",
        "dateReserved": "2024-05-22T06:20:56.205Z",
        "dateUpdated": "2025-05-04T07:12:25.934Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.