CVE-2026-93820 (GCVE-0-2026-93820)

Vulnerability from cvelistv5 – Published: 2026-09-24 16:02 – Updated: 2026-10-03 10:57
VLAI
Title
PCI: rockchip: Protect root bus removal with rescan lock
Summary
In the Linux kernel, the following vulnerability has been resolved: PCI: rockchip: Protect root bus removal with rescan lock Hold the pci_rescan_remove_lock lock while stopping and removing a root bus to avoid racing with concurrent rescan or hotplug operations triggered via sysfs. Such races may lead to use-after-free issues or system crashes. [bhelgaas: commit log]
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6996 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 073d3dbe9a7c38888d8dafe09df421b174a6cffa , < 025308e7c9cd10112b73558c9f63f8f7285fa726 (git)
Affected: 073d3dbe9a7c38888d8dafe09df421b174a6cffa , < ac47d42901859edb504a2890a3a5709c86dbc0c3 (git)
Affected: 073d3dbe9a7c38888d8dafe09df421b174a6cffa , < eaeb9bed3641741aceb0add84a97023bed61e748 (git)
Affected: 073d3dbe9a7c38888d8dafe09df421b174a6cffa , < 5d566ac3a055f0a6f4890ff0af7cfd7e8ed89652 (git)
Affected: 073d3dbe9a7c38888d8dafe09df421b174a6cffa , < ebca7e5947720e9d4bd918af3e17720270c50744 (git)
Affected: 073d3dbe9a7c38888d8dafe09df421b174a6cffa , < 9b19201f57d87c4d0777621275dbc59bff41b7f2 (git)
Affected: 073d3dbe9a7c38888d8dafe09df421b174a6cffa , < 0bd9611587bb494c33566d825fe34b2705e4b167 (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.12
Unaffected: 0 , < 4.12 (semver)
Unaffected: 5.10.271 , ≤ 5.10.* (semver)
Unaffected: 5.15.222 , ≤ 5.15.* (semver)
Unaffected: 6.1.189 , ≤ 6.1.* (semver)
Unaffected: 6.6.158 , ≤ 6.6.* (semver)
Unaffected: 6.12.111 , ≤ 6.12.* (semver)
Unaffected: 6.18.53 , ≤ 6.18.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/pci/controller/pcie-rockchip-host.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "025308e7c9cd10112b73558c9f63f8f7285fa726",
              "status": "affected",
              "version": "073d3dbe9a7c38888d8dafe09df421b174a6cffa",
              "versionType": "git"
            },
            {
              "lessThan": "ac47d42901859edb504a2890a3a5709c86dbc0c3",
              "status": "affected",
              "version": "073d3dbe9a7c38888d8dafe09df421b174a6cffa",
              "versionType": "git"
            },
            {
              "lessThan": "eaeb9bed3641741aceb0add84a97023bed61e748",
              "status": "affected",
              "version": "073d3dbe9a7c38888d8dafe09df421b174a6cffa",
              "versionType": "git"
            },
            {
              "lessThan": "5d566ac3a055f0a6f4890ff0af7cfd7e8ed89652",
              "status": "affected",
              "version": "073d3dbe9a7c38888d8dafe09df421b174a6cffa",
              "versionType": "git"
            },
            {
              "lessThan": "ebca7e5947720e9d4bd918af3e17720270c50744",
              "status": "affected",
              "version": "073d3dbe9a7c38888d8dafe09df421b174a6cffa",
              "versionType": "git"
            },
            {
              "lessThan": "9b19201f57d87c4d0777621275dbc59bff41b7f2",
              "status": "affected",
              "version": "073d3dbe9a7c38888d8dafe09df421b174a6cffa",
              "versionType": "git"
            },
            {
              "lessThan": "0bd9611587bb494c33566d825fe34b2705e4b167",
              "status": "affected",
              "version": "073d3dbe9a7c38888d8dafe09df421b174a6cffa",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/pci/controller/pcie-rockchip-host.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.12"
            },
            {
              "lessThan": "4.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.271",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.222",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.189",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.158",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.111",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.53",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.271",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.222",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.189",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.158",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.111",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.53",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: rockchip: Protect root bus removal with rescan lock\n\nHold the pci_rescan_remove_lock lock while stopping and removing a root bus\nto avoid racing with concurrent rescan or hotplug operations triggered via\nsysfs.  Such races may lead to use-after-free issues or system crashes.\n\n[bhelgaas: commit log]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-03T10:57:51.365Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/025308e7c9cd10112b73558c9f63f8f7285fa726"
        },
        {
          "url": "https://git.kernel.org/stable/c/ac47d42901859edb504a2890a3a5709c86dbc0c3"
        },
        {
          "url": "https://git.kernel.org/stable/c/eaeb9bed3641741aceb0add84a97023bed61e748"
        },
        {
          "url": "https://git.kernel.org/stable/c/5d566ac3a055f0a6f4890ff0af7cfd7e8ed89652"
        },
        {
          "url": "https://git.kernel.org/stable/c/ebca7e5947720e9d4bd918af3e17720270c50744"
        },
        {
          "url": "https://git.kernel.org/stable/c/9b19201f57d87c4d0777621275dbc59bff41b7f2"
        },
        {
          "url": "https://git.kernel.org/stable/c/0bd9611587bb494c33566d825fe34b2705e4b167"
        }
      ],
      "title": "PCI: rockchip: Protect root bus removal with rescan lock",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-93820",
    "datePublished": "2026-09-24T16:02:58.625Z",
    "dateReserved": "2026-09-18T17:59:28.791Z",
    "dateUpdated": "2026-10-03T10:57:51.365Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-93820",
      "date": "2026-10-19",
      "epss": "0.00173",
      "percentile": "0.06287"
    },
    "microsoft_vex": {
      "current_release_date": "2026-10-15T02:43:47.000Z",
      "cve": "CVE-2026-93820",
      "id": "msrc_CVE-2026-93820",
      "initial_release_date": "2026-09-27T23:50:37.000Z",
      "product_status:fixed": "1",
      "product_status:known_affected": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "PCI: rockchip: Protect root bus removal with rescan lock",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-93820.json",
      "version": "3"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/pci/controller/pcie-rockchip-host.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "025308e7c9cd10112b73558c9f63f8f7285fa726",
                    "status": "affected",
                    "version": "073d3dbe9a7c38888d8dafe09df421b174a6cffa",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "ac47d42901859edb504a2890a3a5709c86dbc0c3",
                    "status": "affected",
                    "version": "073d3dbe9a7c38888d8dafe09df421b174a6cffa",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "eaeb9bed3641741aceb0add84a97023bed61e748",
                    "status": "affected",
                    "version": "073d3dbe9a7c38888d8dafe09df421b174a6cffa",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "5d566ac3a055f0a6f4890ff0af7cfd7e8ed89652",
                    "status": "affected",
                    "version": "073d3dbe9a7c38888d8dafe09df421b174a6cffa",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "ebca7e5947720e9d4bd918af3e17720270c50744",
                    "status": "affected",
                    "version": "073d3dbe9a7c38888d8dafe09df421b174a6cffa",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "9b19201f57d87c4d0777621275dbc59bff41b7f2",
                    "status": "affected",
                    "version": "073d3dbe9a7c38888d8dafe09df421b174a6cffa",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "0bd9611587bb494c33566d825fe34b2705e4b167",
                    "status": "affected",
                    "version": "073d3dbe9a7c38888d8dafe09df421b174a6cffa",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "drivers/pci/controller/pcie-rockchip-host.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "4.12"
                  },
                  {
                    "lessThan": "4.12",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.10.*",
                    "status": "unaffected",
                    "version": "5.10.271",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.15.*",
                    "status": "unaffected",
                    "version": "5.15.222",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.1.*",
                    "status": "unaffected",
                    "version": "6.1.189",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.6.*",
                    "status": "unaffected",
                    "version": "6.6.158",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.12.*",
                    "status": "unaffected",
                    "version": "6.12.111",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.18.*",
                    "status": "unaffected",
                    "version": "6.18.53",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "7.2",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: rockchip: Protect root bus removal with rescan lock\n\nHold the pci_rescan_remove_lock lock while stopping and removing a root bus\nto avoid racing with concurrent rescan or hotplug operations triggered via\nsysfs.  Such races may lead to use-after-free issues or system crashes.\n\n[bhelgaas: commit log]"
          }
        ],
        "id": "CVE-2026-93820",
        "lastModified": "2026-10-03T11:17:51.790",
        "metrics": {},
        "published": "2026-09-24T17:17:15.573",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/025308e7c9cd10112b73558c9f63f8f7285fa726"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/0bd9611587bb494c33566d825fe34b2705e4b167"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/5d566ac3a055f0a6f4890ff0af7cfd7e8ed89652"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/9b19201f57d87c4d0777621275dbc59bff41b7f2"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/ac47d42901859edb504a2890a3a5709c86dbc0c3"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/eaeb9bed3641741aceb0add84a97023bed61e748"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/ebca7e5947720e9d4bd918af3e17720270c50744"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-09-28T16:21:48+00:00",
      "cve": "CVE-2026-93820",
      "id": "CVE-2026-93820",
      "initial_release_date": "2026-09-24T00:00:00+00:00",
      "product_status:known_not_affected": "276",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: PCI: rockchip: Protect root bus removal with rescan lock",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93820.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-25T23:48:31Z",
      "cve": "CVE-2026-93820",
      "id": "CVE-2026-93820",
      "initial_release_date": "2026-09-25T23:48:31Z",
      "product_status:known_affected": "230",
      "product_status:known_not_affected": "117",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-93820",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-93820.json",
      "version": "2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON

Loading timeline…




    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.