github - ghsa-c64g-wm7p-fxqp

GHSA-C64G-WM7P-FXQP

Vulnerability from github – Published: 2024-11-05 18:32 – Updated: 2024-11-13 03:30

Details

In the Linux kernel, the following vulnerability has been resolved:

PCI: Hold rescan lock while adding devices during host probe

Since adding the PCI power control code, we may end up with a race between the pwrctl platform device rescanning the bus and host controller probe functions. The latter need to take the rescan lock when adding devices or we may end up in an undefined state having two incompletely added devices and hit the following crash when trying to remove the device over sysfs:

Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 Internal error: Oops: 0000000096000004 [#1] SMP Call trace: __pi_strlen+0x14/0x150 kernfs_find_ns+0x80/0x13c kernfs_remove_by_name_ns+0x54/0xf0 sysfs_remove_bin_file+0x24/0x34 pci_remove_resource_files+0x3c/0x84 pci_remove_sysfs_dev_files+0x28/0x38 pci_stop_bus_device+0x8c/0xd8 pci_stop_bus_device+0x40/0xd8 pci_stop_and_remove_bus_device_locked+0x28/0x48 remove_store+0x70/0xb0 dev_attr_store+0x20/0x38 sysfs_kf_write+0x58/0x78 kernfs_fop_write_iter+0xe8/0x184 vfs_write+0x2dc/0x308 ksys_write+0x7c/0xec

Severity ?

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2024-50122"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-11-05T18:15:15Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: Hold rescan lock while adding devices during host probe\n\nSince adding the PCI power control code, we may end up with a race between\nthe pwrctl platform device rescanning the bus and host controller probe\nfunctions. The latter need to take the rescan lock when adding devices or\nwe may end up in an undefined state having two incompletely added devices\nand hit the following crash when trying to remove the device over sysfs:\n\n  Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\n  Internal error: Oops: 0000000096000004 [#1] SMP\n  Call trace:\n    __pi_strlen+0x14/0x150\n    kernfs_find_ns+0x80/0x13c\n    kernfs_remove_by_name_ns+0x54/0xf0\n    sysfs_remove_bin_file+0x24/0x34\n    pci_remove_resource_files+0x3c/0x84\n    pci_remove_sysfs_dev_files+0x28/0x38\n    pci_stop_bus_device+0x8c/0xd8\n    pci_stop_bus_device+0x40/0xd8\n    pci_stop_and_remove_bus_device_locked+0x28/0x48\n    remove_store+0x70/0xb0\n    dev_attr_store+0x20/0x38\n    sysfs_kf_write+0x58/0x78\n    kernfs_fop_write_iter+0xe8/0x184\n    vfs_write+0x2dc/0x308\n    ksys_write+0x7c/0xec",
  "id": "GHSA-c64g-wm7p-fxqp",
  "modified": "2024-11-13T03:30:45Z",
  "published": "2024-11-05T18:32:12Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50122"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1d59d474e1cb7d4fdf87dfaf96f44647f13ea590"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d4f38a0e7cc94615f63cf7765ca117e5cc2773ae"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-50122 (GCVE-0-2024-50122)

Vulnerability from cvelistv5 – Published: 2024-11-05 17:10 – Updated: 2025-10-01 20:27

Summary

In the Linux kernel, the following vulnerability has been resolved: PCI: Hold rescan lock while adding devices during host probe Since adding the PCI power control code, we may end up with a race between the pwrctl platform device rescanning the bus and host controller probe functions. The latter need to take the rescan lock when adding devices or we may end up in an undefined state having two incompletely added devices and hit the following crash when trying to remove the device over sysfs: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 Internal error: Oops: 0000000096000004 [#1] SMP Call trace: __pi_strlen+0x14/0x150 kernfs_find_ns+0x80/0x13c kernfs_remove_by_name_ns+0x54/0xf0 sysfs_remove_bin_file+0x24/0x34 pci_remove_resource_files+0x3c/0x84 pci_remove_sysfs_dev_files+0x28/0x38 pci_stop_bus_device+0x8c/0xd8 pci_stop_bus_device+0x40/0xd8 pci_stop_and_remove_bus_device_locked+0x28/0x48 remove_store+0x70/0xb0 dev_attr_store+0x20/0x38 sysfs_kf_write+0x58/0x78 kernfs_fop_write_iter+0xe8/0x184 vfs_write+0x2dc/0x308 ksys_write+0x7c/0xec

Severity ?

5.5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-476 - NULL Pointer Dereference

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/d4f38a0e7cc94615f…
	https://git.kernel.org/stable/c/1d59d474e1cb7d4fd…

Impacted products

Vendor

Product

Version

Linux

Affected: 4565d2652a37e438e4cd729e2a8dfeffe34c958c , < d4f38a0e7cc94615f63cf7765ca117e5cc2773ae (git)
Affected: 4565d2652a37e438e4cd729e2a8dfeffe34c958c , < 1d59d474e1cb7d4fdf87dfaf96f44647f13ea590 (git)

Linux

Affected: 6.11
Unaffected: 0 , < 6.11 (semver)
Unaffected: 6.11.6 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "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"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2024-50122",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T20:21:40.173055Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-476",
                "description": "CWE-476 NULL Pointer Dereference",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-01T20:27:16.353Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/pci/probe.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "d4f38a0e7cc94615f63cf7765ca117e5cc2773ae",
              "status": "affected",
              "version": "4565d2652a37e438e4cd729e2a8dfeffe34c958c",
              "versionType": "git"
            },
            {
              "lessThan": "1d59d474e1cb7d4fdf87dfaf96f44647f13ea590",
              "status": "affected",
              "version": "4565d2652a37e438e4cd729e2a8dfeffe34c958c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/pci/probe.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.11"
            },
            {
              "lessThan": "6.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.12",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.11.6",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: Hold rescan lock while adding devices during host probe\n\nSince adding the PCI power control code, we may end up with a race between\nthe pwrctl platform device rescanning the bus and host controller probe\nfunctions. The latter need to take the rescan lock when adding devices or\nwe may end up in an undefined state having two incompletely added devices\nand hit the following crash when trying to remove the device over sysfs:\n\n  Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\n  Internal error: Oops: 0000000096000004 [#1] SMP\n  Call trace:\n    __pi_strlen+0x14/0x150\n    kernfs_find_ns+0x80/0x13c\n    kernfs_remove_by_name_ns+0x54/0xf0\n    sysfs_remove_bin_file+0x24/0x34\n    pci_remove_resource_files+0x3c/0x84\n    pci_remove_sysfs_dev_files+0x28/0x38\n    pci_stop_bus_device+0x8c/0xd8\n    pci_stop_bus_device+0x40/0xd8\n    pci_stop_and_remove_bus_device_locked+0x28/0x48\n    remove_store+0x70/0xb0\n    dev_attr_store+0x20/0x38\n    sysfs_kf_write+0x58/0x78\n    kernfs_fop_write_iter+0xe8/0x184\n    vfs_write+0x2dc/0x308\n    ksys_write+0x7c/0xec"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T09:46:32.271Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d4f38a0e7cc94615f63cf7765ca117e5cc2773ae"
        },
        {
          "url": "https://git.kernel.org/stable/c/1d59d474e1cb7d4fdf87dfaf96f44647f13ea590"
        }
      ],
      "title": "PCI: Hold rescan lock while adding devices during host probe",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-50122",
    "datePublished": "2024-11-05T17:10:51.155Z",
    "dateReserved": "2024-10-21T19:36:19.954Z",
    "dateUpdated": "2025-10-01T20:27:16.353Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-C64G-WM7P-FXQP

CVE-2024-50122 (GCVE-0-2024-50122)

Tags

Sightings

Nomenclature