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CVE-2026-93821

Estado: RecibidaSin puntuar—

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

PCI: altera: 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]

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-93821",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22",
              "lessThan": "cf9d84d1b6a7c3f3780c043df220a7e9e38137eb",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22",
              "lessThan": "fc462f1bdeaea9789928cbfdf5e069ee559c7642",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22",
              "lessThan": "442b7f2a093b4a75f8963aaa7cbb2b8df35a6ac3",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22",
              "lessThan": "4b69c63cc247fc0f499fbd11076fee9c2a6e6fd7",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22",
              "lessThan": "c0cd65906e5f7e293ef2568c9524cc0a918333c3",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22",
              "lessThan": "7cbb8f2750d91e64caff89e164ac8280bb80bedc",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22",
              "lessThan": "a8759c8ac48c0419f5899e95a6ffc611b07c965b",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/pci/controller/pcie-altera.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.3"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.3",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.271",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.222",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.189",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.158",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.111",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.53",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/pci/controller/pcie-altera.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-24T17:17:15.690",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/442b7f2a093b4a75f8963aaa7cbb2b8df35a6ac3",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/4b69c63cc247fc0f499fbd11076fee9c2a6e6fd7",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/7cbb8f2750d91e64caff89e164ac8280bb80bedc",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a8759c8ac48c0419f5899e95a6ffc611b07c965b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c0cd65906e5f7e293ef2568c9524cc0a918333c3",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/cf9d84d1b6a7c3f3780c043df220a7e9e38137eb",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/fc462f1bdeaea9789928cbfdf5e069ee559c7642",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: altera: 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]"
    }
  ],
  "lastModified": "2026-10-03T11:17:51.897",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}