FKIE_CVE-2024-26587

Vulnerability from fkie_nvd - Published: 2024-02-22 17:15 - Updated: 2026-06-17 07:17
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
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
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/08aca65997fb6f233066883b1f1e653bcb1f26caPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c5068e442eed063d2f1658e6b6d3c1c6fcf1e588Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ea937f77208323d35ffe2f8d8fc81b00118bfcdaPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/08aca65997fb6f233066883b1f1e653bcb1f26caPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c5068e442eed063d2f1658e6b6d3c1c6fcf1e588Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/ea937f77208323d35ffe2f8d8fc81b00118bfcdaPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/netdevsim/netdev.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "08aca65997fb6f233066883b1f1e653bcb1f26ca",
              "status": "affected",
              "version": "b63e78fca889e07931ec8f259701718a24e5052e",
              "versionType": "git"
            },
            {
              "lessThan": "c5068e442eed063d2f1658e6b6d3c1c6fcf1e588",
              "status": "affected",
              "version": "b63e78fca889e07931ec8f259701718a24e5052e",
              "versionType": "git"
            },
            {
              "lessThan": "ea937f77208323d35ffe2f8d8fc81b00118bfcda",
              "status": "affected",
              "version": "b63e78fca889e07931ec8f259701718a24e5052e",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/netdevsim/netdev.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.6"
            },
            {
              "lessThan": "6.6",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.7.*",
              "status": "unaffected",
              "version": "6.7.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.8",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "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"
        }
      ]
    }
  ],
  "cveTags": [],
  "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": "2026-06-17T07:17:49.883",
  "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"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-26587",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-02-26T14:37:54.234702Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "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"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/08aca65997fb6f233066883b1f1e653bcb1f26ca"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c5068e442eed063d2f1658e6b6d3c1c6fcf1e588"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/ea937f77208323d35ffe2f8d8fc81b00118bfcda"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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