GSD-2024-26587

Vulnerability from gsd - Updated: 2024-02-20 06:02
Details
In the Linux kernel, the following vulnerability has been resolved: net: netdevsim: don't try to destroy PHC on VFs PHC gets initialized in nsim_init_netdevsim(), which is only called if (nsim_dev_port_is_pf()). Create a counterpart of nsim_init_netdevsim() and move the mock_phc_destroy() there. This fixes a crash trying to destroy netdevsim with VFs instantiated, as caught by running the devlink.sh test: BUG: kernel NULL pointer dereference, address: 00000000000000b8 RIP: 0010:mock_phc_destroy+0xd/0x30 Call Trace: <TASK> nsim_destroy+0x4a/0x70 [netdevsim] __nsim_dev_port_del+0x47/0x70 [netdevsim] nsim_dev_reload_destroy+0x105/0x120 [netdevsim] nsim_drv_remove+0x2f/0xb0 [netdevsim] device_release_driver_internal+0x1a1/0x210 bus_remove_device+0xd5/0x120 device_del+0x159/0x490 device_unregister+0x12/0x30 del_device_store+0x11a/0x1a0 [netdevsim] kernfs_fop_write_iter+0x130/0x1d0 vfs_write+0x30b/0x4b0 ksys_write+0x69/0xf0 do_syscall_64+0xcc/0x1e0 entry_SYSCALL_64_after_hwframe+0x6f/0x77
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{
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2024-26587"
      ],
      "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: netdevsim: don\u0027t try to destroy PHC on VFs\n\nPHC gets initialized in nsim_init_netdevsim(), which\nis only called if (nsim_dev_port_is_pf()).\n\nCreate a counterpart of nsim_init_netdevsim() and\nmove the mock_phc_destroy() there.\n\nThis fixes a crash trying to destroy netdevsim with\nVFs instantiated, as caught by running the devlink.sh test:\n\n    BUG: kernel NULL pointer dereference, address: 00000000000000b8\n    RIP: 0010:mock_phc_destroy+0xd/0x30\n    Call Trace:\n     \u003cTASK\u003e\n     nsim_destroy+0x4a/0x70 [netdevsim]\n     __nsim_dev_port_del+0x47/0x70 [netdevsim]\n     nsim_dev_reload_destroy+0x105/0x120 [netdevsim]\n     nsim_drv_remove+0x2f/0xb0 [netdevsim]\n     device_release_driver_internal+0x1a1/0x210\n     bus_remove_device+0xd5/0x120\n     device_del+0x159/0x490\n     device_unregister+0x12/0x30\n     del_device_store+0x11a/0x1a0 [netdevsim]\n     kernfs_fop_write_iter+0x130/0x1d0\n     vfs_write+0x30b/0x4b0\n     ksys_write+0x69/0xf0\n     do_syscall_64+0xcc/0x1e0\n     entry_SYSCALL_64_after_hwframe+0x6f/0x77",
      "id": "GSD-2024-26587",
      "modified": "2024-02-20T06:02:29.149057Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@kernel.org",
        "ID": "CVE-2024-26587",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Linux",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "b63e78fca889",
                          "version_value": "08aca65997fb"
                        },
                        {
                          "version_value": "not down converted",
                          "x_cve_json_5_version_data": {
                            "defaultStatus": "affected",
                            "versions": [
                              {
                                "status": "affected",
                                "version": "6.6"
                              },
                              {
                                "lessThan": "6.6",
                                "status": "unaffected",
                                "version": "0",
                                "versionType": "custom"
                              },
                              {
                                "lessThanOrEqual": "6.6.*",
                                "status": "unaffected",
                                "version": "6.6.14",
                                "versionType": "custom"
                              },
                              {
                                "lessThanOrEqual": "6.7.*",
                                "status": "unaffected",
                                "version": "6.7.2",
                                "versionType": "custom"
                              },
                              {
                                "lessThanOrEqual": "*",
                                "status": "unaffected",
                                "version": "6.8",
                                "versionType": "original_commit_for_fix"
                              }
                            ]
                          }
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Linux"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: netdevsim: don\u0027t try to destroy PHC on VFs\n\nPHC gets initialized in nsim_init_netdevsim(), which\nis only called if (nsim_dev_port_is_pf()).\n\nCreate a counterpart of nsim_init_netdevsim() and\nmove the mock_phc_destroy() there.\n\nThis fixes a crash trying to destroy netdevsim with\nVFs instantiated, as caught by running the devlink.sh test:\n\n    BUG: kernel NULL pointer dereference, address: 00000000000000b8\n    RIP: 0010:mock_phc_destroy+0xd/0x30\n    Call Trace:\n     \u003cTASK\u003e\n     nsim_destroy+0x4a/0x70 [netdevsim]\n     __nsim_dev_port_del+0x47/0x70 [netdevsim]\n     nsim_dev_reload_destroy+0x105/0x120 [netdevsim]\n     nsim_drv_remove+0x2f/0xb0 [netdevsim]\n     device_release_driver_internal+0x1a1/0x210\n     bus_remove_device+0xd5/0x120\n     device_del+0x159/0x490\n     device_unregister+0x12/0x30\n     del_device_store+0x11a/0x1a0 [netdevsim]\n     kernfs_fop_write_iter+0x130/0x1d0\n     vfs_write+0x30b/0x4b0\n     ksys_write+0x69/0xf0\n     do_syscall_64+0xcc/0x1e0\n     entry_SYSCALL_64_after_hwframe+0x6f/0x77"
          }
        ]
      },
      "generator": {
        "engine": "bippy-8df59b4913de"
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://git.kernel.org/stable/c/08aca65997fb6f233066883b1f1e653bcb1f26ca",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/08aca65997fb6f233066883b1f1e653bcb1f26ca"
          },
          {
            "name": "https://git.kernel.org/stable/c/c5068e442eed063d2f1658e6b6d3c1c6fcf1e588",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/c5068e442eed063d2f1658e6b6d3c1c6fcf1e588"
          },
          {
            "name": "https://git.kernel.org/stable/c/ea937f77208323d35ffe2f8d8fc81b00118bfcda",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/ea937f77208323d35ffe2f8d8fc81b00118bfcda"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "E897E511-6471-443B-B59F-2A7FC2AE655F",
                    "versionEndExcluding": "6.6.14",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "0EA3778C-730B-464C-8023-18CA6AC0B807",
                    "versionEndExcluding": "6.7.2",
                    "versionStartIncluding": "6.7.0",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: netdevsim: don\u0027t try to destroy PHC on VFs\n\nPHC gets initialized in nsim_init_netdevsim(), which\nis only called if (nsim_dev_port_is_pf()).\n\nCreate a counterpart of nsim_init_netdevsim() and\nmove the mock_phc_destroy() there.\n\nThis fixes a crash trying to destroy netdevsim with\nVFs instantiated, as caught by running the devlink.sh test:\n\n    BUG: kernel NULL pointer dereference, address: 00000000000000b8\n    RIP: 0010:mock_phc_destroy+0xd/0x30\n    Call Trace:\n     \u003cTASK\u003e\n     nsim_destroy+0x4a/0x70 [netdevsim]\n     __nsim_dev_port_del+0x47/0x70 [netdevsim]\n     nsim_dev_reload_destroy+0x105/0x120 [netdevsim]\n     nsim_drv_remove+0x2f/0xb0 [netdevsim]\n     device_release_driver_internal+0x1a1/0x210\n     bus_remove_device+0xd5/0x120\n     device_del+0x159/0x490\n     device_unregister+0x12/0x30\n     del_device_store+0x11a/0x1a0 [netdevsim]\n     kernfs_fop_write_iter+0x130/0x1d0\n     vfs_write+0x30b/0x4b0\n     ksys_write+0x69/0xf0\n     do_syscall_64+0xcc/0x1e0\n     entry_SYSCALL_64_after_hwframe+0x6f/0x77"
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: netdevsim: no intente destruir PHC en VF PHC se inicializa en nsim_init_netdevsim(), que s\u00f3lo se llama si (nsim_dev_port_is_pf()). Cree una contraparte de nsim_init_netdevsim() y mueva el mock_phc_destroy() all\u00ed. Esto soluciona un fallo al intentar destruir netdevsim con VF instanciados, detectado al ejecutar la prueba devlink.sh: ERROR: desreferencia del puntero NULL del n\u00facleo, direcci\u00f3n: 00000000000000b8 RIP: 0010:mock_phc_destroy+0xd/0x30 Seguimiento de llamadas:  nsim_destroy+0x4a /0x70 [netdevsim] __nsim_dev_port_del+0x47/0x70 [netdevsim] nsim_dev_reload_destroy+0x105/0x120 [netdevsim] nsim_drv_remove+0x2f/0xb0 [netdevsim] dispositivo_release_driver_internal+0x1a1/0x210 bus_remove_device+0xd5/0x120 dispositivo_del+0x159/0x490 dispositivo_unregister+0x12/0x30 del_device_store +0x11a/0x1a0 [netdevsim] kernfs_fop_write_iter+0x130/0x1d0 vfs_write+0x30b/0x4b0 ksys_write+0x69/0xf0 do_syscall_64+0xcc/0x1e0 Entry_SYSCALL_64_after_hwframe+0x6f/0x77"
          }
        ],
        "id": "CVE-2024-26587",
        "lastModified": "2024-03-18T18:09:54.027",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2024-02-22T17:15:08.937",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/08aca65997fb6f233066883b1f1e653bcb1f26ca"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/c5068e442eed063d2f1658e6b6d3c1c6fcf1e588"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/ea937f77208323d35ffe2f8d8fc81b00118bfcda"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-476"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    }
  }
}



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